1. Chapter 2: SQL – The Basics Objectives: 1.The SQL execution environment 2.SELECT statement 3.SQL Developer & SQL*Plus

2. Overview: SQL execution environment Oracle can run on many different OS Oracle databases server is where the Oracle DB software resides Oracle provides SQL Developer & SQL*Plus tools/interfaces for connecting with the DB & executing your SQL queries Other third party tools are available that are mentioned on Appendix H of the textbook

3. Let’s get started… Execution environment & setting up STUDENT schema Accessing Oracle database server Getting started with SQL Developer SQL and the Oracle database server Creating a database connection for SQL Developer Exploring database table objects Columns tab Data tab Grants tab Statistics tab Triggers, dependencies, indexes, flashbacks, and SQL tabs Details tab SQL Developer worksheet Results tab

4. Various SQL Developer Panes

5. Data types A data type determines the type of data that can be stored in a column. You must keep data types in mind especially when using comparison operators, in other words, comparing the values in two columns. DATE NUMBER CHAR VARCHAR2

6. SQL SELECT statement Components of a SELECT statement Selecting one, multiple or all columns Eliminating duplicates with DISTINCT or UNIQUE

7. SQL Worksheet Icons Constructing & formatting SQL SELECT statement in SQL Developer Execute Statement Run Script Commit Rollback Cancel Execute Explain Plan Auto Trace Clear

8. Formatting SQL statement in SQL Developer Syntax formatting Code completion Syntax highlighting Writing multiple statements in the SQL Developer SQL statement history in SQL Developer

9. SQL*Plus Starting SQL*Plus Executing SQL commands in SQL*Plus Formatting SQL*Plus results