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Case Study On Oracle 10g

Unformatted text preview: Student Guide • Volume 3 D17108GC30 Edition 3.0 January 2009 D57872 Oracle Internal & Oracle Academy Use Only Oracle Database 10g: SQL Fundamentals I Authors Copyright © 2009, Oracle. All rights reserved. Salome Clement Chaitanya Koratamaddi Nancy Greenberg Disclaimer Editors Arijit Ghosh Raj Kumar Graphic Designer Rajiv Chandrabhanu Publisher Giri Venugopal The information contained in this document is subject to change without notice. If you find any problems in the document, please report them in writing to: Oracle University, 500 Oracle Parkway, Redwood Shores, California 94065 USA. This document is not warranted to be error-free. Restricted Rights Notice If this documentation is delivered to the United States Government or anyone using the documentation on behalf of the United States Government, the following notice is applicable: U.S. GOVERNMENT RIGHTS The U.S. Government’s rights to use, modify, reproduce, release, perform, display, or disclose these training materials are restricted by the terms of the applicable Oracle license agreement and/or the applicable U.S. Government contract. Trademark Notice Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Oracle Internal & Oracle Academy Use Only Technical Contributors and Reviewers Wayne Abbott Christian Bauwens Claire Bennett Perry Benson Brian Boxx Zarko Cesljas Dairy Chan Laszlo Czinkoczki Joel Goodman Matthew Gregory Sushma Jagannath Yash Jain Angelika Krupp Isabelle Marchand Malika Marghadi Valli Pataballa Narayanan Radhakrishnan Bryan Roberts Helen Robertson Lata Shivaprasad John Soltani James Spiller Priya Vennapusa This document contains proprietary information and is protected by copyright and other intellectual property laws. You may copy and print this document solely for your own use in an Oracle training course. The document may not be modified or altered in any way. Except where your use constitutes "fair use" under copyright law, you may not use, share, download, upload, copy, print, display, perform, reproduce, publish, license, post, transmit, or distribute this document in whole or in part without the express authorization of Oracle. Contents I Introduction Lesson Objectives I-2 Goals of the Course I-3 Oracle10g I-4 Oracle Database 10g I-6 Oracle Application Server 10g I-7 Oracle Enterprise Manager 10g Grid Control I-8 Relational and Object Relational Database Management Systems I-9 Oracle Internet Platform I-10 System Development Life Cycle I-11 Data Storage on Different Media I-13 Relational Database Concept I-14 Definition of a Relational Database I-15 Data Models I-16 Entity Relationship Model I-17 Entity Relationship Modeling Conventions I-19 Relating Multiple Tables I-21 Relational Database Terminology I-23 Relational Database Properties I-25 Communicating with an RDBMS Using SQL I-26 Oracle’s Relational Database Management System I-27 SQL Statements I-28 Tables Used in the Course I-29 Summary I-30 1 Retrieving Data Using the SQL SELECT Statement Objectives 1-2 Capabilities of SQL SELECT Statements 1-3 Basic SELECT Statement 1-4 Selecting All Columns 1-5 Selecting Specific Columns 1-6 Writing SQL Statements 1-7 Column Heading Defaults 1-8 iii Oracle Internal & Oracle Academy Use Only Preface 2 Restricting and Sorting Data Objectives 2-2 Limiting Rows Using a Selection 2-3 Limiting the Rows That Are Selected 2-4 Using the WHERE Clause 2-5 Character Strings and Dates 2-6 Comparison Conditions 2-7 Using Comparison Conditions 2-8 Using the BETWEEN Condition 2-9 Using the IN Condition 2-10 Using the LIKE Condition 2-11 Using the NULL Conditions 2-13 Logical Conditions 2-14 iv Oracle Internal & Oracle Academy Use Only Arithmetic Expressions 1-9 Using Arithmetic Operators 1-10 Operator Precedence 1-11 Defining a Null Value 1-12 Null Values in Arithmetic Expressions 1-13 Defining a Column Alias 1-14 Using Column Aliases 1-15 Concatenation Operator 1-16 Literal Character Strings 1-17 Using Literal Character Strings 1-18 Alternative Quote (q) Operator 1-19 Duplicate Rows 1-20 Development Environments for SQL 1-21 What Is Oracle SQL Developer? 1-22 Oracle SQL Developer Interface 1-23 Creating a Database Connection 1-24 Browsing Database Objects 1-27 Using the SQL Worksheet 1-28 Executing SQL Statements 1-31 Formatting the SQL Code 1-32 Saving SQL Statements 1-33 Running Script Files 1-34 Displaying the Table Structure 1-35 Using the DESCRIBE Command 1-36 Summary 1-37 Practice 1: Overview 1-38 Using the AND Operator 2-15 Using the NOT Operator 2-17 Rules of Precedence 2-18 Using the ORDER BY Clause 2-20 Sorting 2-21 Substitution Variables 2-22 Using the & Substitution Variable 2-24 Character and Date Values with Substitution Variables 2-26 Specifying Column Names, Expressions, and Text 2-27 Using the && Substitution Variable 2-28 Using the DEFINE Command 2-29 Using the VERIFY Command 2-30 Summary 2-31 Practice 2: Overview 2-32 3 Using Single-Row Functions to Customize Output Objectives 3-2 SQL Functions 3-3 Two Types of SQL Functions 3-4 Single-Row Functions 3-5 Character Functions 3-7 Case-Manipulation Functions 3-9 Using Case-Manipulation Functions 3-10 Character-Manipulation Functions 3-11 Using the Character-Manipulation Functions 3-12 Number Functions 3-13 Using the ROUND Function 3-14 Using the TRUNC Function 3-15 Using the MOD Function 3-16 Working with Dates 3-17 Arithmetic with Dates 3-20 Using Arithmetic Operators with Dates 3-21 Date Functions 3-22 Using Date Functions 3-23 Practice 3: Overview of Part 1 3-25 Conversion Functions 3-26 Implicit Data Type Conversion 3-27 Explicit Data Type Conversion 3-29 Using the TO_CHAR Function with Dates 3-32 v Oracle Internal & Oracle Academy Use Only Using the OR Operator 2-16 Elements of the Date Format Model 3-33 Using the TO_CHAR Function with Dates 3-37 Using the TO_CHAR Function with Numbers 3-38 Using the TO_NUMBER and TO_DATE Functions 3-41 RR Date Format 3-43 RR Date Format: Example 3-44 Nesting Functions 3-45 General Functions 3-47 NVL Function 3-48 Using the NVL2 Function 3-50 Using the NULLIF Function 3-51 Using the COALESCE Function 3-52 Conditional Expressions 3-54 CASE Expression 3-55 Using the CASE Expression 3-56 DECODE Function 3-57 Using the DECODE Function 3-58 Summary 3-60 Practice 3: Overview of Part 2 3-61 4 Reporting Aggregated Data Using the Group Functions Objectives 4-2 What Are Group Functions? 4-3 Types of Group Functions 4-4 Group Functions: Syntax 4-5 Using the AVG and SUM Functions 4-6 Using the MIN and MAX Functions 4-7 Using the COUNT Function 4-8 Using the DISTINCT Keyword 4-9 Group Functions and Null Values 4-10 Creating Groups of Data 4-11 Creating Groups of Data: GROUP BY Clause Syntax 4-12 Using the GROUP BY Clause 4-13 Grouping by More Than One Column 4-15 Using the GROUP BY Clause on Multiple Columns 4-16 Illegal Queries Using Group Functions 4-17 Restricting Group Results 4-19 Restricting Group Results with the HAVING Clause 4-20 vi Oracle Internal & Oracle Academy Use Only Using the NVL Function 3-49 5 Displaying Data from Multiple Tables Objectives 5-2 Obtaining Data from Multiple Tables 5-3 Types of Joins 5-4 Joining Tables Using SQL:1999 Syntax 5-5 Creating Natural Joins 5-6 Retrieving Records with Natural Joins 5-7 Creating Joins with the USING Clause 5-8 Joining Column Names 5-9 Retrieving Records with the USING Clause 5-10 Qualifying Ambiguous Column Names 5-11 Using Table Aliases 5-12 Creating Joins with the ON Clause 5-13 Retrieving Records with the ON Clause 5-14 Self-Joins Using the ON Clause 5-15 Applying Additional Conditions to a Join 5-17 Creating Three-Way Joins with the ON Clause 5-18 Nonequijoins 5-19 Retrieving Records with Nonequijoins 5-20 Outer Joins 5-21 INNER Versus OUTER Joins 5-22 LEFT OUTER JOIN 5-23 RIGHT OUTER JOIN 5-24 FULL OUTER JOIN 5-25 Cartesian Products 5-26 Generating a Cartesian Product 5-27 Creating Cross Joins 5-28 Summary 5-29 Practice 5: Overview 5-30 6 Using Subqueries to Solve Queries Objectives 6-2 Using a Subquery to Solve a Problem 6-3 Subquery Syntax 6-4 Using a Subquery 6-5 vii Oracle Internal & Oracle Academy Use Only Using the HAVING Clause 4-21 Nesting Group Functions 4-23 Summary 4-24 Practice 4: Overview 4-25 Using the ALL Operator in Multiple-Row Subqueries 6-16 Null Values in a Subquery 6-17 Summary 6-19 Practice 6: Overview 6-20 7 Using the Set Operators Objectives 7-2 Set Operators 7-3 Tables Used in This Lesson 7-4 UNION Operator 7-8 Using the UNION Operator 7-9 UNION ALL Operator 7-11 Using the UNION ALL Operator 7-12 INTERSECT Operator 7-13 Using the INTERSECT Operator 7-14 MINUS Operator 7-15 Set Operator Guidelines 7-17 The Oracle Server and Set Operators 7-18 Matching the SELECT Statements 7-19 Matching the SELECT Statement: Example 7-20 Controlling the Order of Rows 7-21 Summary 7-22 Practice 7: Overview 7-23 8 Manipulating Data Objectives 8-2 Data Manipulation Language 8-3 Adding a New Row to a Table 8-4 INSERT Statement Syntax 8-5 Inserting New Rows 8-6 viii Oracle Internal & Oracle Academy Use Only Guidelines for Using Subqueries 6-6 Types of Subqueries 6-7 Single-Row Subqueries 6-8 Executing Single-Row Subqueries 6-9 Using Group Functions in a Subquery 6-10 The HAVING Clause with Subqueries 6-11 What Is Wrong with This Statement? 6-12 Will This Statement Return Rows? 6-13 Multiple-Row Subqueries 6-14 Using the ANY Operator in Multiple-Row Subqueries 6-15 TRUNCATE Statement 8-21 Using a Subquery in an INSERT Statement 8-22 Database Transactions 8-24 Advantages of COMMIT and ROLLBACK Statements 8-26 Controlling Transactions 8-27 Rolling Back Changes to a Marker 8-28 Implicit Transaction Processing 8-29 State of the Data Before COMMIT or ROLLBACK 8-31 State of the Data After COMMIT 8-32 Committing Data 8-33 State of the Data After ROLLBACK 8-34 Statement-Level Rollback 8-36 Read Consistency 8-37 Implementation of Read Consistency 8-38 Summary 8-39 Practice 8: Overview 8-40 9 Using DDL Statements to Create and Manage Tables Objectives 9-2 Database Objects 9-3 Naming Rules 9-4 CREATE TABLE Statement 9-5 Referencing Another User’s Tables 9-6 DEFAULT Option 9-7 Creating Tables 9-8 Data Types 9-9 ix Oracle Internal & Oracle Academy Use Only Inserting Rows with Null Values 8-7 Inserting Special Values 8-8 Inserting Specific Date Values 8-9 Creating a Script 8-10 Copying Rows from Another Table 8-11 Changing Data in a Table 8-12 UPDATE Statement Syntax 8-13 Updating Rows in a Table 8-14 Updating Two Columns with a Subquery 8-15 Updating Rows Based on Another Table 8-16 Removing a Row from a Table 8-17 DELETE Statement 8-18 Deleting Rows from a Table 8-19 Deleting Rows Based on Another Table 8-20 Datetime Data Types 9-11 Including Constraints 9-17 Constraint Guidelines 9-18 Defining Constraints 9-19 NOT NULL Constraint 9-21 UNIQUE Constraint 9-22 PRIMARY KEY Constraint 9-24 FOREIGN KEY Constraint 9-25 FOREIGN KEY Constraint: Keywords 9-27 CREATE TABLE: Example 9-29 Violating Constraints 9-30 Creating a Table by Using a Subquery 9-32 ALTER TABLE Statement 9-34 Dropping a Table 9-35 Summary 9-36 Practice 9: Overview 9-37 10 Creating Other Schema Objects Objectives 10-2 Database Objects 10-3 What Is a View? 10-4 Advantages of Views 10-5 Simple Views and Complex Views 10-6 Creating a View 10-7 Retrieving Data from a View 10-10 Modifying a View 10-11 Creating a Complex View 10-12 Rules for Performing DML Operations on a View 10-13 Using the WITH CHECK OPTION Clause 10-16 Denying DML Operations 10-18 Removing a View 10-20 Practice 10: Overview of Part 1 10-21 Sequences 10-22 CREATE SEQUENCE Statement: Syntax 10-24 Creating a Sequence 10-25 NEXTVAL and CURRVAL Pseudocolumns 10-26 Using a Sequence 10-28 Caching Sequence Values 10-29 Modifying a Sequence 10-30 x Oracle Internal & Oracle Academy Use Only CHECK Constraint 9-28 11 Managing Objects with Data Dictionary Views Objectives 11-2 The Data Dictionary 11-3 Data Dictionary Structure 11-4 How to Use the Dictionary Views 11-6 USER_OBJECTS and ALL_OBJECTS Views 11-7 USER_OBJECTS View 11-8 Table Information 11-9 Column Information 11-10 Constraint Information 11-12 View Information 11-15 Sequence Information 11-16 Synonym Information 11-18 Adding Comments to a Table 11-19 Summary 11-20 Practice 11: Overview 11-21 A Practice Solutions B Table Descriptions and Data C Oracle Join Syntax D Using SQL*Plus E Using SQL Developer Index xi Oracle Internal & Oracle Academy Use Only Guidelines for Modifying a Sequence 10-31 Indexes 10-33 How Are Indexes Created? 10-35 Creating an Index 10-36 Index Creation Guidelines 10-37 Removing an Index 10-38 Synonyms 10-39 Creating and Removing Synonyms 10-41 Summary 10-42 Practice 10: Overview of Part 2 10-43 Additional Practices Additional Practices: Table Descriptions and Data Oracle Internal & Oracle Academy Use Only Additional Practices: Solutions xii __________________ Oracle Internal & Oracle Academy Use Only Additional Practices __________________ Additional Practices These exercises can be used for extra practice after you have discussed the following topics: basic SQL SELECT statement and SQL functions. 1. The HR department needs to find data for all the clerks who were hired after 1997. 3. For budgeting purposes, the HR department needs a report on projected raises. The report should display those employees who have no commission but who have a 10% raise in salary (round off the salaries). Oracle Database 10g: SQL Fundamentals I Additional Practices - 2 Oracle Internal & Oracle Academy Use Only 2. The HR department needs a report of employees who earn commission. Show the last name, job, salary, and commission of these employees. Sort the data by salary in descending order. Additional Practices (continued) … 5. Show those employees who have a last name starting with the letters J, K, L, or M. 6. Create a report that displays all employees and indicate with the words Yes or No whether they receive a commission. Use the DECODE expression in your query. … Oracle Database 10g: SQL Fundamentals I Additional Practices - 3 Oracle Internal & Oracle Academy Use Only 4. Create a report of employees and their duration of employment. Show the last names of all employees together with the number of years and the number of completed months that they have been employed. Order the report by the duration of their employment. The employee who has been employed the longest should appear at the top of the list. Additional Practices (continued) These exercises can be used for extra practice after you have discussed the following topics: basic SQL SELECT statement, SQL functions, joins, and group functions. 8. Find the number of employees who have a last name that ends with the letter n. Create two possible solutions. 9. Create a report that shows the name, location, and number of employees for each department. Make sure that the report also includes departments without employees. 10. The HR department needs to find the job titles in departments 10 and 20. Create a report to display the job IDs for those departments. 11. Create a report that displays the jobs that are found in the Administration and Executive departments. Also display the number of employees for these jobs. Show the job with the highest number of employees first. Oracle Database 10g: SQL Fundamentals I Additional Practices - 4 Oracle Internal & Oracle Academy Use Only 7. Create a report that displays the department name, location, name, job title, and salary of those employees who work in a specific location. Prompt the user for the location. For example, if the user enters 1800, the following are the results: Additional Practices (continued) These exercises can be used for extra practice after you have discussed the following topics: basic SQL SELECT statements, SQL functions, joins, group functions, and subqueries. 13. Create a report that displays the following for all employees: last name, salary, and salary expressed in terms of thousands of dollars. … 14. Show all employees who have managers with a salary higher than $15,000. Show the following data: employee name, manager name, manager salary, and salary grade of the manager. Oracle Database 10g: SQL Fundamentals I Additional Practices - 5 Oracle Internal & Oracle Academy Use Only 12. Show all employees who were hired in the first half of the month (before the 16th of the month). Additional Practices (continued) 16. Create a report to display the department number and the lowest salary of the department with the highest average salary. 17. Create a report that displays the departments where no sales representatives work. Include the department number, department name, and location in the output. Oracle Database 10g: SQL Fundamentals I Additional Practices - 6 Oracle Internal & Oracle Academy Use Only 15. Show the department number, name, number of employees, and average salary of all departments along with the names, salaries, and jobs of the employees working in each department. Additional Practices (continued) 18. Create the following statistical reports for the HR department: Include the department number, department name, and the number of employees working in each department that: a. Employs fewer than three employees: c. Has the lowest number of employees: 19. Create a report that displays the employee number, last name, salary, department number, and the average salary in their departments for all employees. Oracle Database 10g: SQL Fundamentals I Additional Practices - 7 Oracle Internal & Oracle Academy Use Only b. Has the highest number of employees: Additional Practices (continued) 21. Create an anniversary overview based on the hire date of the employees. Sort the anniversaries in ascending order. Oracle Database 10g: SQL Fundamentals I Additional Practices - 8 Oracle Internal & Oracle Academy Use Only 20. Show all employees who were hired on the day of the week on which the highest number of employees were hired. Additional Practices: Case Study In this case study, you build a set of database tables for a video application. After you create the tables, you insert, update, and delete records in a video store database and generate a report. The database contains only the essential tables. for RESERVATION #* res date the subject of set up for TITLE #* id * title * description o rating o category o release date available as a copy responsible for MEMBER #* id * last name o first name o address o city o phone * join date TITLE_COPY #* id * status the subject of responsible for made against created for RENTAL #* book date o act ret date o exp ret date Note: If you want to build the tables, you can execute the commands in the buildtab.sql script in SQL Developer. If you want to drop the tables, you can execute the commands in the dropvid.sql script in SQL Developer. Then you can execute the commands in the buildvid.sql script in SQL Developer to create and populate the tables. • If you use the buildtab.sql script to build the tables, start with step 4. • If you use the dropvid.sql script to remove the video tables, start with step 1. • If you use the buildvid.sql script to build and populate the tables, start with step 6(b). Oracle Database 10g: SQL Fundamentals I Additional Practices - 9 Oracle Internal & Oracle Academy Use Only The following is a diagram of the entities and attributes for the video application: Additional Practices: Case Study (continued) 1. Create the tables based on the following table instance charts. Choose the appropriate data types and ensure that you add integrity constraints. a. Table name: MEMBER Column_ Name MEMBER_ ID Key Type Null/ Unique Default Value PK Data Type Length FIRST_NAME ADDRESS CITY PHONE JOIN _ DATE NN NN NUMBER VARCHAR2 VARCHAR2 VARCHAR2 VARCHAR2 VARCHAR2 System Date DATE 10 25 25 100 30 15 b. Table name: TITLE Column_ Name TITLE_ID Key Type Null/ Unique Check PK Data Type NUMBER VARCHAR2 VARCHAR2 Length 10 60 400 DESCRIPTION NN RATING CATEGORY G, PG, R, NC17, NR NN,U TITLE VARCHAR2 DRAMA, COMEDY, ACTION, CHILD, SCIFI, DOCUMEN TARY VARCHAR2 4 RELEASE_ DATE NN 20 DATE Oracle Database 10g: SQL Fundamentals I Additional Practices - 10 Oracle Internal & Oracle Academy Use Only NN,U LAST_ NAME Additional Practices: Case Study (continued) c. Table name: TITLE_COPY FK Ref Table FK Ref Col Data Type Length COPY_ID TITLE_ID PK PK,FK NN,U STATUS NN,U NN AVAILABLE, DESTROYED, RENTED, RESERVED TITLE TITLE_ID NUMBER NUMBER VARCHAR2 10 10 15 d. Table name: RENTAL Column Name Key Type Default Value FK Ref Table FK Ref Col Data Type Length BOOK_ DATE MEMBER_ ID COPY_ ID PK PK,FK1 ACT_RET_ EXP_RET_ DATE DATE PK,FK2 PK,FK2 System Date System Date + 2 days MEMBER DATE TITLE_ ID MEMBER_I D NUMBER TITLE_ COPY COPY_ ID NUMBER 10 10 TITLE_ COPY TITLE_ID DATE DATE NUMBER 10 Oracle Database 10g: SQL Fundamentals I Additional Practices - 11 Oracle Internal & Oracle Academy Use Only Column Name Key Type Null/ Unique Check Additional Practices: Case Study (continued) e. Table name: RESERVATION FK Ref Column Data Type Length RES_ DATE MEMBER_ ID TITLE_ ID PK PK,FK1 PK,FK2 NN,U NN,U NN MEMBER TITLE MEMBER_ID TITLE_ID NUMBER NUMBER 10 10 DATE 2. Verify that the tables and constraints were created properly by checking the data dictionary. Oracle Database 10g: SQL Fundamentals I Additional Practices - 12 Oracle Internal & Oracle Academy Use Only Column Name Key Type Null/ Unique FK Ref Table Additional Practices: Case Study (continued) 3. Create sequences to uniquely identify each row in the MEMBER table and the TITLE table. a. Member number for the MEMBER table: Start with 101; do not allow caching of values. Name the sequence MEMBER_ID_SEQ. b. Title number for the TITLE table: Start with 92; do not allow caching of values. Name the sequence TITLE_ID_SEQ. 4. Add data to the tables. Create a script for each set of data to be added. a. Add movie titles to the TITLE table. Write a script to enter the movie information. Save the statements in a script named lab_apcs_4a.sql. Use the sequences to uniquely identify each title. Enter the release dates in the DD-MON-YYYY format. Remember that single quotation marks in a character field must be specially handled. Verify your additions. Oracle Database 10g: SQL Fundamentals I Additional Practices - 13 Oracle Internal & Oracle Academy Use Only c. Verify the existence of the sequences in the data dictionary. Additional Practices: Case Study (continued) Alien Again The Glob My Day Off Miracles on Ice Soda Gang Description All of Willie’s friends make a Christmas list for Santa, but Willie is yet to add his own wish list. Yet another installation of science fiction history. Can the heroine save the planet from the alien life form? A meteor crashes near a small American town and unleashes carnivorous goo in this classic. With a little luck and a lot of ingenuity, a teenager skips school for a day in New York. A six-year-old has doubts about Santa Claus, but she discovers that miracles really do exist. After discovering a cache of drugs, a young couple find themselves pitted against a vicious gang. Rating G Category CHILD Release_date 05-OCT-1995 R SCIFI 19-MAY-1995 NR SCIFI 12-AUG-1995 PG COMEDY 12-JUL-1995 PG DRAMA 12-SEP-1995 NR ACTION 01-JUN-1995 b. Add data to the MEMBER table. Place the INSERT statements in a script named lab_apcs_4b.sql. Execute the commands in the script. Be sure to use the sequence to add the member numbers. First_ Name Carmen Last_Name Velasquez LaDoris Ngao Midori Nagayama Mark Quick-to-See Audry Molly Address 283 King Street 5 Modrany City Seattle Phone 206-899-6666 Join_Date 08-MAR-1990 Bratislava 586-355-8882 08-MAR-1990 Sao Paolo 254-852-5764 17-JUN-1991 Lagos 63-559-7777 07-APR-1990 Ropeburn 68 Via Centrale 6921 King Way 86 Chu Street Hong Kong 41-559-87 18-JAN-1991 Urguhart 3035 Laurier Quebec 418-542-9988 18-JAN-1991 Oracle Database 10g: SQL Fundamentals I Additional Practices - 14 Oracle Internal & Oracle Academy Use Only Title Willie and Christmas Too Additional Practices: Case Study (continued) c. Add the following movie copies in the TITLE_COPY table: Note: Have the TITLE_ID numbers available for this exercise. Title Copy_Id Status Title Copy_Id Willie and Christmas Too Alien Again 1 AVAILABLE 1 1 AVAILABLE Willie and Christmas Too Alien Again 2 RENTED The Glob 1 AVAILABLE The Glob 1 My Day Off 1 AVAILABLE My Day Off 1 2 AVAILABLE 2 3 RENTED 3 Miracles on Ice 1 AVAILABLE Miracles on Ice 1 Soda Gang 1 AVAILABLE Soda Gang 1 1 d. Add the following rentals to the RENTAL table: Note: The title number may be different depending on the sequence number. Title_ Id 92 Copy_ Id 1 Member_Id 101 Book_date 3 days ago Exp_Ret_Date 1 day ago 93 2 101 1 day ago 1 day from now 95 3 102 2 days ago Today 97 1 106 4 days ago 2 days ago Oracle Database 10g: SQL Fundamentals I Additional Practices - 15 Oracle Internal & Oracle Academy Use Only 2 Additional Practices: Case Study (continued) 5. Create a view named TITLE_AVAIL to show the movie titles, the availability of each copy, and its expected return date if rented. Query all rows from the view. Order the results by title. 6. Make changes to the data in the tables. a. Add a new title. The movie is “Interstellar Wars,” which is rated PG and classified as a science fiction movie. The release date is 07-JUL-77. The description is “Futuristic interstellar action movie. Can the rebels save the humans from the evil empire?” Be sure to add a title copy record for two copies. b. Enter two reservations. One reservation is for Carmen Velasquez, who wants to rent “Interstellar Wars.” The other is for Mark Quick-to-See, who wants to rent “Soda Gang.” 7. Make a modification to one of the tables. a. Run the script in lab_apcs_7a.sql to add a PRICE column to the TITLE table to record the purchase price of the video. Verify your modifications. Title Willie and Christmas Too Alien Again The Glob My Day Off Miracles on Ice Soda Gang Interstellar Wars Price 25 35 35 35 30 35 29 Oracle Database 10g: SQL Fundamentals I Additional Practices - 16 Oracle Internal & Oracle Academy Use Only Note: Your results may be different. b. Create a script named lab_apcs_7b.sql that contains UPDATE statements that update each video with a price according to the preceding list. Run the commands in the script. Note: Have the TITLE_ID numbers available for this exercise. Oracle Internal & Oracle Academy Use Only 8. Create a report that contains each customer’s history of renting videos. Be sure to include the customer name, movie rented, dates of the rental, and duration of rentals. Total the number of rentals for all customers for the reporting period. Save the commands that generate the report in a script file named lab_apcs_8.sql. Note: Your results may be different. Oracle Database 10g: SQL Fundamentals I Additional Practices - 17 Oracle Internal & Oracle Academy Use Only Additional Practices Oracle Internal & Oracle Academy Use Only Table Descriptions and Data Tables Used in Additional Practices Additional practice questions 1-21 use the HR schema. Refer to Appendix B to look at the HR schema tables. The tables used in the additional practices: case study are described below. Note: These table do not exist by default. You will be creating them in the case study practice questions. RESERVATION #* res date the subject of set up for #* id * title * description o rating o category o release date available as a copy responsible for MEMBER #* id * last name o first name o address o city o phone * join date TITLE_COPY #* id * status the subject of responsible for made against created for RENTAL #* book date o act ret date o exp ret date Oracle Database 10g: SQL Fundamentals I Additional Practices Tables - 2 Oracle Internal & Oracle Academy Use Only TITLE for RESERVATION Table Oracle Internal & Oracle Academy Use Only DESCRIBE reservation Oracle Database 10g: SQL Fundamentals I Additional Practices Tables - 3 MEMBER Table Oracle Internal & Oracle Academy Use Only DESCRIBE member Oracle Database 10g: SQL Fundamentals I Additional Practices Tables - 4 TITLE Table Oracle Internal & Oracle Academy Use Only DESCRIBE title Oracle Database 10g: SQL Fundamentals I Additional Practices Tables - 5 TITLE_COPY Table Oracle Internal & Oracle Academy Use Only DESCRIBE title_copy Oracle Database 10g: SQL Fundamentals I Additional Practices Tables - 6 RENTAL Table Oracle Internal & Oracle Academy Use Only DESCRIBE rental Oracle Database 10g: SQL Fundamentals I Additional Practices Tables - 7 Oracle Internal & Oracle Academy Use Only __________________ Oracle Internal & Oracle Academy Use Only Additional Practices: Solutions __________________ Additional Practices: Solutions These exercises can be used for extra practice after you have discussed the following topics: basic SQL SELECT statement and SQL functions. 1. The HR department needs to find data for all the clerks who were hired after 1997. 2. The HR department needs a report of employees who earn commission. Show the last name, job, salary, and commission of these employees. Sort the data by salary in descending order. SELECT last_name, job_id, salary, commission_pct FROM employees WHERE commission_pct IS NOT NULL ORDER BY salary DESC; 3. For budgeting purposes, the HR department needs a report on projected raises. The report should display those employees who have no commission but who have a 10% raise in salary (round off the salaries). SELECT 'The salary of '||last_name||' after a 10% raise is ' || ROUND(salary*1.10) "New salary" FROM employees WHERE commission_pct IS NULL; 4. Create a report of employees and their duration of employment. Show the last names of all the employees along with the number of years and the number of completed months that they have been employed. Order the report by the duration of their employment. The employee who has been employed the longest should appear at the top of the list. SELECT last_name, TRUNC(MONTHS_BETWEEN(SYSDATE, hire_date) / 12) YEARS, TRUNC(MOD(MONTHS_BETWEEN(SYSDATE, hire_date), 12)) MONTHS FROM employees ORDER BY years DESC, MONTHS desc; 5. Show those employees who have a last name starting with the letters J, K, L, or M. SELECT last_name FROM employees WHERE SUBSTR(last_name, 1,1) IN ('J', 'K', 'L', 'M'); 6. Create a report that displays all the employees and indicate with the words Yes or No whether they receive a commission. Use the DECODE expression in your query. SELECT last_name, salary, decode(commission_pct, NULL, 'No', 'Yes') commission FROM employees; Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 2 Oracle Internal & Oracle Academy Use Only SELECT * FROM employees WHERE job_id = 'ST_CLERK' AND hire_date > '31-DEC-1997'; Additional Practices: Solutions (continued) These exercises can be used for extra practice after you have discussed the following topics: basic SQL SELECT statement, SQL functions, joins, and group functions. 7. Create a report that displays the department name, location, name, job title, and salary of those employees who work in a specific location. Prompt the user for the location. SELECT d.department_name, d.location_id, e.last_name, e.job_id, e.salary FROM employees e, departments d WHERE e.department_id = d.department_id AND d.location_id = &dept_no; SELECT FROM WHERE --or SELECT FROM WHERE COUNT(*) employees last_name LIKE '%n'; COUNT(*) employees SUBSTR(last_name, -1) = 'n'; 9. Create a report that shows the name, location, and number of employees for each department. Make sure that the report also includes departments without employees. SELECT d.department_id, d.department_name, d.location_id, COUNT(e.employee_id) FROM employees e RIGHT OUTER JOIN departments d ON e.department_id = d.department_id GROUP BY d.department_id, d.department_name, d.location_id; 10. The HR department needs to find the job titles in departments 10 and 20. Create a report to display the job IDs for these departments. SELECT DISTINCT job_id FROM employees WHERE department_id IN (10, 20); 11. Create a report that displays the jobs that are found in the Administration and Executive departments. Also display the number of employees for these jobs. Show the job with the highest number of employees first. SELECT e.job_id, count(e.job_id) FREQUENCY FROM employees e JOIN departments d ON e.department_id = d.department_id WHERE d.department_name IN ('Administration', 'Executive') GROUP BY e.job_id ORDER BY FREQUENCY DESC; These exercises can be used for extra practice after you have discussed the following topics: basic SQL SELECT statements, SQL functions, joins, group functions, and subqueries. 12. Show all employees who were hired in the first half of the month (before the 16th of the month). Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 3 Oracle Internal & Oracle Academy Use Only 8. Find the number of employees who have a last name that ends with the letter n. Create two possible solutions. Additional Practices: Solutions (continued) SELECT last_name, hire_date FROM employees WHERE TO_CHAR(hire_date, 'DD') < 16; 13. Create a report that displays the following for all employees: last name, salary, and salary expressed in terms of thousands of dollars. SELECT last_name, salary, TRUNC(salary, -3)/1000 FROM employees; Thousands SELECT FROM ON JOIN ON AND e.last_name, m.last_name manager, m.salary, j.grade_level employees e JOIN employees m e.manager_id = m.employee_id job_grades j m.salary BETWEEN j.lowest_sal AND j.highest_sal m.salary > 15000; 15. Show the department number, name, number of employees, and average salary of all departments together with the names, salaries, and jobs of the employees working in each department. SELECT d.department_id, d.department_name, count(e1.employee_id) employees, NVL(TO_CHAR(AVG(e1.salary), '99999.99'), 'No average' ) avg_sal, e2.last_name, e2.salary, e2.job_id FROM departments d RIGHT OUTER JOIN employees e1 ON d.department_id = e1.department_id RIGHT OUTER JOIN employees e2 ON d.department_id = e2.department_id GROUP BY d.department_id, d.department_name, e2.last_name, e2.salary, e2.job_id ORDER BY d.department_id, employees; 16. Create a report to display the department number and lowest salary of the department with the highest average salary. SELECT department_id, MIN(salary) FROM employees GROUP BY department_id HAVING AVG(salary) = (SELECT MAX(AVG(salary)) FROM employees GROUP BY department_id); 17. Create a report that displays the departments where no sales representatives work. Include the department number, department name, and location in the output. SELECT * FROM departments WHERE department_id NOT IN(SELECT department_id FROM employees Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 4 Oracle Internal & Oracle Academy Use Only 14. Show all employees who have managers with a salary higher than $15,000. Show the following data: employee name, manager name, manager salary, and salary grade of the manager. Additional Practices: Solutions (continued) WHERE job_id = 'SA_REP' AND department_id IS NOT NULL); 18. Create the following statistical reports for the HR department: Include the department number, department name, and the number of employees working in each department that: a. Employs fewer than three employees: b. Has the highest number of employees: SELECT d.department_id, d.department_name, COUNT(*) FROM departments d JOIN employees e ON d.department_id = e.department_id GROUP BY d.department_id, d.department_name HAVING COUNT(*) = (SELECT MAX(COUNT(*)) FROM employees GROUP BY department_id); c. Has the lowest number of employees: SELECT d.department_id, d.department_name, COUNT(*) FROM departments d JOIN employees e ON d.department_id = e.department_id GROUP BY d.department_id, d.department_name HAVING COUNT(*) = (SELECT MIN(COUNT(*)) FROM employees GROUP BY department_id); 19. Create a report that displays the employee number, last name, salary, department number, and the average salary in their department for all employees. SELECT e.employee_id, e.last_name, e.department_id, e.salary, AVG(s.salary) FROM employees e JOIN employees s ON e.department_id = s.department_id GROUP BY e.employee_id, e.last_name, e.department_id, e.salary; 20. Show all employees who were hired on the day of the week on which the highest number of employees were hired. SELECT last_name, TO_CHAR(hire_date, 'DAY') day FROM employees WHERE TO_CHAR(hire_date, 'Day') = (SELECT TO_CHAR(hire_date, 'Day') FROM employees GROUP BY TO_CHAR(hire_date, 'Day') HAVING COUNT(*) = (SELECT MAX(COUNT(*)) FROM employees GROUP BY TO_CHAR(hire_date, 'Day'))); Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 5 Oracle Internal & Oracle Academy Use Only SELECT d.department_id, d.department_name, COUNT(*) FROM departments d JOIN employees e ON d.department_id = e.department_id GROUP BY d.department_id, d.department_name HAVING COUNT(*) < 3; Additional Practices: Solutions (continued) 21. Create an anniversary overview based on the hire date of the employees. Sort the anniversaries in ascending order. Oracle Internal & Oracle Academy Use Only SELECT last_name, TO_CHAR(hire_date, 'Month DD') BIRTHDAY FROM employees ORDER BY TO_CHAR(hire_date, 'DDD'); Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 6 Additional Practices: Case Study Solutions 1. Create tables based on the following table instance charts. Choose the appropriate data types and be sure to add integrity constraints. CREATE TABLE member (member_id NUMBER(10) CONSTRAINT member_member_id_pk PRIMARY KEY, last_name VARCHAR2(25) CONSTRAINT member_last_name_nn NOT NULL, first_name VARCHAR2(25), address VARCHAR2(100), city VARCHAR2(30), phone VARCHAR2(15), join_date DATE DEFAULT SYSDATE CONSTRAINT member_join_date_nn NOT NULL); b. Table name: TITLE CREATE TABLE title (title_id NUMBER(10) CONSTRAINT title_title_id_pk PRIMARY KEY, title VARCHAR2(60) CONSTRAINT title_title_nn NOT NULL, description VARCHAR2(400) CONSTRAINT title_description_nn NOT NULL, rating VARCHAR2(4) CONSTRAINT title_rating_ck CHECK (rating IN ('G', 'PG', 'R', 'NC17', 'NR')), category VARCHAR2(20) CONSTRAINT title_category_ck CHECK (category IN ('DRAMA', 'COMEDY', 'ACTION', 'CHILD', 'SCIFI', 'DOCUMENTARY')), release_date DATE); c. Table name: TITLE_COPY CREATE TABLE title_copy (copy_id NUMBER(10), title_id NUMBER(10) CONSTRAINT title_copy_title_if_fk REFERENCES title(title_id), status VARCHAR2(15) CONSTRAINT title_copy_status_nn NOT NULL CONSTRAINT title_copy_status_ck CHECK (status IN ('AVAILABLE', 'DESTROYED','RENTED', 'RESERVED')), CONSTRAINT title_copy_copy_id_title_id_pk PRIMARY KEY (copy_id, title_id)); d. Table name: RENTAL Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 7 Oracle Internal & Oracle Academy Use Only a. Table name: MEMBER Additional Practices: Case Study Solutions (continued) e. Table name: RESERVATION CREATE TABLE reservation (res_date DATE, member_id NUMBER(10) CONSTRAINT reservation_member_id REFERENCES member(member_id), title_id NUMBER(10) CONSTRAINT reservation_title_id REFERENCES title(title_id), CONSTRAINT reservation_resdate_mem_tit_pk PRIMARY KEY (res_date, member_id, title_id)); 2. Verify that the tables and constraints were created properly by checking the data dictionary. SELECT FROM WHERE table_name user_tables table_name IN ('MEMBER', 'TITLE', 'TITLE_COPY', 'RENTAL', 'RESERVATION'); SELECT FROM WHERE constraint_name, constraint_type, table_name user_constraints table_name IN ('MEMBER', 'TITLE', 'TITLE_COPY', 'RENTAL', 'RESERVATION'); 3. Create sequences to uniquely identify each row in the MEMBER table and the TITLE table. a. Member number for the MEMBER table: Start with 101; do not allow caching of values. Name the sequence MEMBER_ID_SEQ. CREATE SEQUENCE member_id_seq START WITH 101 NOCACHE; b. Title number for the TITLE table: Start with 92; do not allow caching of values. Name the sequence TITLE_ID_SEQ. CREATE SEQUENCE title_id_seq START WITH 92 NOCACHE; c. Verify the existence of the sequences in the data dictionary. Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 8 Oracle Internal & Oracle Academy Use Only CREATE TABLE rental (book_date DATE DEFAULT SYSDATE, member_id NUMBER(10) CONSTRAINT rental_member_id_fk REFERENCES member(member_id), copy_id NUMBER(10), act_ret_date DATE, exp_ret_date DATE DEFAULT SYSDATE + 2, title_id NUMBER(10), CONSTRAINT rental_book_date_copy_title_pk PRIMARY KEY (book_date, member_id, copy_id,title_id), CONSTRAINT rental_copy_id_title_id_fk FOREIGN KEY (copy_id, title_id) REFERENCES title_copy(copy_id, title_id)); Additional Practices: Case Study Solutions (continued) SELECT FROM WHERE sequence_name, increment_by, last_number user_sequences sequence_name IN ('MEMBER_ID_SEQ', 'TITLE_ID_SEQ'); 4. Add data to the tables. Create a script for each set of data to be added. INSERT INTO title(title_id, title, description, rating, category, release_date) VALUES (title_id_seq.NEXTVAL, 'Willie and Christmas Too', 'All of Willie''s friends make a Christmas list for Santa, but Willie has yet to add his own wish list.', 'G', 'CHILD', TO_DATE('05-OCT-1995','DD-MON-YYYY')) / INSERT INTO title(title_id , title, description, rating, category, release_date) VALUES (title_id_seq.NEXTVAL, 'Alien Again', 'Yet another installment of science fiction history. Can the heroine save the planet from the alien life form?', 'R', 'SCIFI', TO_DATE( '19-MAY-1995','DD-MON-YYYY')) / INSERT INTO title(title_id, title, description, rating, category, release_date) VALUES (title_id_seq.NEXTVAL, 'The Glob', 'A meteor crashes near a small American town and unleashes carnivorous goo in this classic.', 'NR', 'SCIFI', TO_DATE( '12-AUG-1995','DD-MON-YYYY')) / INSERT INTO title(title_id, title, description, rating, category, release_date) VALUES (title_id_seq.NEXTVAL, 'My Day Off', 'With a little luck and a lot ingenuity, a teenager skips school for a day in New York.', 'PG', 'COMEDY', TO_DATE( '12-JUL-1995','DD-MON-YYYY')) / ... COMMIT / SELECT title FROM title; b. Add data to the MEMBER table. Place the INSERT statements in a script named lab_apcs_4b.sql. Execute the commands in the script. Be sure to use the sequence to add the member numbers. SET VERIFY OFF INSERT INTO member(member_id, first_name, last_name, address, city, phone, join_date) Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 9 Oracle Internal & Oracle Academy Use Only a. Add movie titles to the TITLE table. Write a script to enter the movie information. Save the statements in a script named lab_apcs_4a.sql. Use the sequences to uniquely identify each title. Enter the release dates in the DD-MON-YYYY format. Remember that single quotation marks in a character field must be specially handled. Verify your additions. VALUES (member_id_seq.NEXTVAL, 'Carmen', 'Velasquez', '283 King Street', 'Seattle', '206-899-6666', TO_DATE('08-MAR1990', 'DD-MM-YYYY')) / INSERT INTO member(member_id, first_name, last_name, address, city, phone, join_date) VALUES (member_id_seq.NEXTVAL, 'LaDoris', 'Ngao', '5 Modrany', 'Bratislava', '586-355-8882', TO_DATE('08-MAR-1990', 'DD-MM-YYYY')) / INSERT INTO member(member_id, first_name, last_name, address, city, phone, join_date) VALUES (member_id_seq.NEXTVAL, 'Midori', 'Nagayama', '68 Via Centrale', 'Sao Paolo', '254-852-5764', TO_DATE('17-JUN1991', 'DD-MM-YYYY')) / INSERT INTO member(member_id, first_name, last_name, address, city, phone, join_date) VALUES (member_id_seq.NEXTVAL, 'Mark', 'Quick-to-See', '6921 King Way', 'Lagos', '63-559-7777', TO_DATE('07-APR-1990', 'DD-MM-YYYY')) / INSERT INTO member(member_id, first_name, last_name, address, city, phone, join_date) VALUES (member_id_seq.NEXTVAL, 'Audry', 'Ropeburn', '86 Chu Street', 'Hong Kong', '41-559-87', TO_DATE('18-JAN-1991', 'DD-MM-YYYY')) / INSERT INTO member(member_id, first_name, last_name, address, city, phone, join_date) VALUES (member_id_seq.NEXTVAL, 'Molly', 'Urguhart', '3035 Laurier', 'Quebec', '418-542-9988', TO_DATE('18-JAN-1991', 'DD-MM-YYYY')); / COMMIT SET VERIFY ON c. Add the following movie copies in the TITLE_COPY table: Note: Have the TITLE_ID numbers available for this exercise. INSERT VALUES / INSERT VALUES / INSERT VALUES / INSERT VALUES / INTO title_copy(copy_id, title_id, status) (1, 92, 'AVAILABLE') INTO title_copy(copy_id, title_id, status) (1, 93, 'AVAILABLE') INTO title_copy(copy_id, title_id, status) (2, 93, 'RENTED') INTO title_copy(copy_id, title_id, status) (1, 94, 'AVAILABLE') Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 10 Oracle Internal & Oracle Academy Use Only Additional Practices: Case Study Solutions (continued) Additional Practices: Case Study Solutions (continued) INTO title_copy(copy_id, title_id, status) (1, 95, 'AVAILABLE') INTO title_copy(copy_id, title_id,status) (2, 95, 'AVAILABLE') INTO title_copy(copy_id, title_id,status) (3, 95, 'RENTED') INTO title_copy(copy_id, title_id,status) (1, 96, 'AVAILABLE') INTO title_copy(copy_id, title_id,status) (1, 97, 'AVAILABLE') / d. Add the following rentals to the RENTAL table: Note: The title number may be different depending on the sequence number. INSERT INTO rental(title_id, copy_id, member_id, book_date, exp_ret_date, act_ret_date) VALUES (92, 1, 101, sysdate-3, sysdate-1, sysdate-2) / INSERT INTO rental(title_id, copy_id, member_id, book_date, exp_ret_date, act_ret_date) VALUES (93, 2, 101, sysdate-1, sysdate-1, NULL) / INSERT INTO rental(title_id, copy_id, member_id, book_date, exp_ret_date, act_ret_date) VALUES (95, 3, 102, sysdate-2, sysdate, NULL) / INSERT INTO rental(title_id, copy_id, member_id, book_date, exp_ret_date,act_ret_date) VALUES (97, 1, 106, sysdate-4, sysdate-2, sysdate-2) / COMMIT / 5. Create a view named TITLE_AVAIL to show the movie titles, the availability of each copy, and its expected return date if rented. Query all rows from the view. Order the results by title. Note: Your results may be different. CREATE VIEW title_avail AS SELECT t.title, c.copy_id, c.status, r.exp_ret_date FROM title t JOIN title_copy c ON t.title_id = c.title_id FULL OUTER JOIN rental r ON c.copy_id = r.copy_id AND c.title_id = r.title_id; Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 11 Oracle Internal & Oracle Academy Use Only INSERT VALUES / INSERT VALUES / INSERT VALUES / INSERT VALUES / INSERT VALUES Additional Practices: Case Study Solutions (continued) SELECT * FROM title_avail ORDER BY title, copy_id; 6. Make changes to the data in the tables. INSERT INTO title(title_id, title, description, rating, category, release_date) VALUES (title_id_seq.NEXTVAL, 'Interstellar Wars', 'Futuristic interstellar action movie. Can the rebels save the humans from the evil empire?', 'PG', 'SCIFI', '07-JUL-77') / INSERT INTO title_copy (copy_id, title_id, status) VALUES (1, 98, 'AVAILABLE') / INSERT INTO title_copy (copy_id, title_id, status) VALUES (2, 98, 'AVAILABLE') / b. Enter two reservations. One reservation is for Carmen Velasquez, who wants to rent “Interstellar Wars.” The other is for Mark Quick-to-See, who wants to rent “Soda Gang.” INSERT VALUES / INSERT VALUES / INTO reservation (res_date, member_id, title_id) (SYSDATE, 101, 98) INTO reservation (res_date, member_id, title_id) (SYSDATE, 104, 97) 7. Make a modification to one of the tables. a. Run the script in lab_apcs_7a.sql to add a PRICE column to the TITLE table to record the purchase price of the video. Verify your modifications. ALTER TABLE title ADD (price NUMBER(8,2)); DESCRIBE title b. Create a script named lab_apcs_7b.sql that contains UPDATE statements that update each video with a price according to the list provided. Run the commands in the script. Note: Have the TITLE_ID numbers available for this exercise. SET ECHO OFF SET VERIFY OFF UPDATE title SET price = &price Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 12 Oracle Internal & Oracle Academy Use Only a. Add a new title. The movie is “Interstellar Wars,” which is rated PG and classified as a science fiction movie. The release date is 07-JUL-77. The description is “Futuristic interstellar action movie. Can the rebels save the humans from the evil empire?” Be sure to add a title copy record for two copies. Additional Practices: Case Study Solutions (continued) WHERE title_id = &title_id; SET VERIFY OFF SET ECHO OFF SET ECHO OFF SET VERIFY OFF SELECT m.first_name||' '||m.last_name MEMBER, t.title, r.book_date, r.act_ret_date - r.book_date DURATION FROM member m, title t, rental r WHERE r.member_id = m.member_id AND r.title_id = t.title_id ORDER BY member; SET VERIFY ON SET ECHO ON Oracle Database 10g: SQL Fundamentals I Additional Practices: Solutions - 13 Oracle Internal & Oracle Academy Use Only 8. Create a report that contains each customer’s history of renting videos. Be sure to include the customer name, movie rented, dates of the rental, and duration of rentals. Total the number of rentals for all customers for the reporting period. Save the commands that generate the report in a script file named lab_apcs_8.sql. Note: Your results may be different. Oracle Internal & Oracle Academy Use Only ...
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