Introduction to Oracle9i: SQL Instructor Guide • Volume 1 40049GC11 Production 1.1 October 2001 D33993 Authors Copyright © Oracle Corporation‚ 2000‚ 2001. All rights reserved. Nancy Greenberg Priya Nathan This documentation contains proprietary information of Oracle Corporation. It is provided under a license agreement containing restrictions on use and disclosure and is also protected by copyright law. Reverse engineering of the software is prohibited. If this documentation
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Ch01 10/29/99 2:27 PM Page 1 O N E Visual Basic Database Programming Welcome to our book on Microsoft Visual Basic and ActiveX Data Objects (ADO) programming. In this book‚ we’re going to see a tremendous amount of database programming using ADO—from simply moving through a database by clicking buttons in a form all the way to using the Remote Data Services (RDS) on Web servers‚ learning about data shaping‚ using hierarchical recordsets‚ and creating ActiveX controls
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attribute - Example: ALTER TABLE EMPLOYEE ADD JOB VARCHAR(12); - The database users must still enter a value for the new attribute JOB for each EMPLOYEE tuple. This can be done using the UPDATE command. Features Added in SQL2 and SQL-99 CREATE SCHEMA Specifies a new database schema by giving it a name. REFERENTIAL INTEGRITY OPTIONS - We can specify RESTRICT‚ CASCADE‚ SET NULL or SET DEFAULT on referential integrity constraints (foreign keys) CREATE TABLE DEPT (
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Chapter 2: Basic SQL SELECT Statements TRUE/FALSE 1. An RDBMS is a software program that allows users to enter‚ manipulate‚ and retrieve data. ANS: T PTS: 1 REF: 25 2. An ORDBMS is more advanced than a simple RDBMS since the user can also create reports. ANS: F PTS: 1 REF: 26 3. There are six editions available for Oracle10g. ANS: F PTS: 1 REF: 26 4. The majority of operations performed on a database table utilize the SELECT statement. ANS: T PTS: 1 REF: 28 5. When a user asks the
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Unit 6 Assignment 1: Homework Learning Objectives and Outcomes Name the main events in the development of SQL statements. Run SELECT queries with wild cards‚ DISTINCT key word‚ calculations‚ sorting and aliasing. Run queries with the WHERE clause to filter the result sets. Use the Aggregate functions COUNT‚ AVG‚ SUM‚ MIN‚ and MAX. Assignment Requirements Answer the true-or-false questions on the next page by filling out the answer sheet. Required Resources Textbook Submission Requirements Submit
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****************************************************************/ * 3.3 Write a SQL query that joins two tables in the example database and uses BETWEEN * to restrict record selection. (Use salary to restrict the data.) */ SELECT e.Last_name‚ e.First_name‚ e.Wage‚ j.Job_title‚ j.EEO_1_Classification FROM Employee e JOIN Job_title j ON e.Job_title = j.Job_title WHERE e.Wage BETWEEN 30000 AND 60000; GO /* * 3.4 Write a SQL query that joins two tables in the example database and uses BETWEEN
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INDEX 1. SQL BASICS The Structured Query Language (SQL) is a language that enables you to create and operate on relational databases‚ which are sets of related information stored in tables. The basic structure of a SQL expression consists of three clauses: Select From Where SELECT:- The select clause is used to list the attributes desired in the result of a query. It corresponds to the projection operation of the relational algebra. FROM:- The from clause lists the relation to
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Oracle EXAM 1Z0-047 Oracle Database SQL Expert Total Questions: 276 For interactive and self-paced preparation of exam 1Z0-047‚ try our practice exams. Practice exams also include self assessment and reporting features 1 Question: 1 Which three possible values can be set for the TIME_ZONE session parameter by using the ALTER SESSION command? (Choose three.) A. ’os’ B. local C. -8:00’ D. dbtimezone Li E. ’Australia’ Answer: B‚C‚D Question: 2 EMPDET is an external table containing
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international business school (Affiliated to Guru Gobind Singh Indraprastha University ) TABLE OF CONTENTS Topics Page No. 1. MS-DOS 03 - 20 2. HTML 21 - 30 3. SPREADSHEETS 31 - 49 4. SQL 50 - 64 MS-DOS Disk operating System (DOS) DOS was developed by
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the index values increment by 1. 2. When should you resort to using an hint in an SQL statement? You should always use hints. You should use a hint to force the optimizer into recognizing an newly added index. You should use a hint once you understand exactly why the execution plan for the statement was used. (*) You should never‚ ever use hints. Correct‚ you should only use a hint in an SQL statement once you understand exactly why the execution plan for the statement was used
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