C o n t e n t s I I

Chapter 1: Controlling User Access

Controlling User Access

Privileges

What Is a Role?

Revoking Object Privileges

Practice 1

Chapter 2: Managing Schema Objects

ALTER TABLE Statement

Adding, Modifying, and Dropping a Column

Adding a Constraint

Overview of Indexes

External Tables

Practice 2

Chapter 3: Managing Objects with Data Dictionary Views

Data Dictionary

View Information

Sequence Information

Synonym Information

Practice 3

Chapter 4: Manipulating Large Data Sets

Using Subqueries to Manipulate Data

Copying Rows from Another Table

Multitable INSERT Statements

MERGE Statement

Tracking Changes in Data

Practice 4: Overview

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Chapter 5: Managing Data in Different Time Zones

Time Zones

Difference Between DATE and TIMESTAMP

Comparing TIMESTAMP Data Types

Daylight Saving Time

Practice 5

Chapter 6: Retrieving Data Using Subqueries

Multiple-Column Subqueries

Pairwise & Nonpairwise Comparison Subquery

Correlated UPDATE & DELETE

WITH Clause

Practice 6

Chapter 7: Regular Expression Support

What Are Regular Expressions?

Using the Regular Expressions Functions and Conditions in SQL and PL/SQL

Regular Expressions Functions and Conditions

Subexpressions

Using the REGEXP_COUNT Function

Practice 7

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