Oracle SQL Developer

4.3.2.1 Normal ........................................................................................................................... 4-74.3.2.2 Ascending and Descending ........................................................................................ 4-74.3.2.3 Column and Function-based....................................................................................... 4-74.3.2.4 Single Column and Concatenated ............................................................................. 4-74.3.3 Guidelines for Creating Indexes........................................................................................ 4-84.3.3.1 Index the Correct Tables and Columns..................................................................... 4-84.3.3.2 Limit the Number of Indexes for Each Table ........................................................... 4-94.3.3.3 Choose the Order of Columns in Composite Indexes............................................. 4-94.3.3.4 Drop Indexes That Are No Longer Required ....................................................... 4-104.4 Managing Views ...................................................................................................................... 4-104.5 Managing Sequences ............................................................................................................... 4-104.6 Managing Synonyms............................................................................................................... 4-115 Data Types: Usage Information5.1 Overview of Data Types ............................................................................................................ 5-15.2 Storing Character Data............................................................................................................... 5-15.2.1 What are the Character Data Types? ................................................................................ 5-15.2.2 Choosing Between the Character Data Types ................................................................. 5-25.3 Storing Numeric Data ................................................................................................................ 5-25.3.1 What Are the Numeric Data Types?................................................................................. 5-25.3.2 Using NUMBER Data Types.............................................................................................. 5-35.3.3 Using Floating-Point Number Formats............................................................................ 5-45.3.3.1 BINARY_FLOAT .......................................................................................................... 5-55.3.3.2 BINARY_DOUBLE....................................................................................................... 5-55.4 Storing Datetime Data................................................................................................................ 5-55.4.1 Using DATE and TIMESTAMP Data Types.................................................................... 5-55.4.1.1 Using the DATE Data Type ........................................................................................ 5-55.4.1.2 Using the TIMESTAMP Data Type............................................................................ 5-65.4.1.3 Using the TIMESTAMP WITH TIME ZONE Data Type........................................ 5-65.4.1.4 Using the TIMESTAMP WITH LOCAL TIME ZONE Data Type......................... 5-65.4.1.5 Representing the Difference Between Datetime Values ......................................... 5-65.4.2 Manipulating the DATE and TIME Formats ................................................................... 5-66 SQL: Usage Information6.1 Overview of SQL......................................................................................................................... 6-16.1.1 Features of SQL .................................................................................................................... 6-16.1.2 Types of SQL Statements.................................................................................................... 6-26.2 Retrieving Data With Queries................................................................................................... 6-26.2.1 Displaying Data Using the SELECT Statement............................................................... 6-26.2.2 Using Character Literals in SQL Statements.................................................................... 6-36.2.2.1 Quoting Character Literals.......................................................................................... 6-36.2.3 Using a Column Alias to Change Headings When Selecting Data .............................. 6-46.2.4 Restricting Data Using the WHERE Clause..................................................................... 6-46.2.5 Sorting Data Using the ORDER BY Clause...................................................................... 6-56.2.6 Displaying Data From Multiple Tables ............................................................................ 6-66.3 Manipulating Data With SQL Statements............................................................................... 6-76.3.1 Adding Data With the INSERT Statement....................................................................... 6-7vi