Oracle SQL for Report Writers
Course Description
This course gives a basic introduction to Oracle`s version of SQL, focusing on the select statement for use within reports. This will be relevant for all versions of the database, from 8i onwards. Designed to introduce concepts and functionality in an accessible and friendly format, the course has been prepared to assist report writers understand what reporting tools will do behind the scenes and is aimed at those using any reporting tool that generates SQL.
Duration: 1 days
Prerequisites
PC Fundamentals
Oracle Overview
Introducing Oracle
The Elements of the Oracle System
Relational Concepts
What reporting tools do
SQL*Plus and SQL
Introduction
Choosing and Describing Tables
Elements of the SQL Query
The SQL Buffer and Query Layout
Editing SQL Statements
The System Dummy Table
Selecting Columns
Duplicate Information (DISTINCT)
Sorting Information
SQL*Plus Reporting
Introducing SQL*Plus for Reporting
Using SQL*Plus
SQL Functions
The Concatenation Operator
Elements of the SQL Query: Arithmetic
Column Aliases
String Functions
Arithmetic Functions
Date Functions
Mixed Functions
Filtering Data Using Where
Where Operators
Where with Keywords
Where and Logical Operators
Retrieving Data from Multiple Tables
Joining Tables (Equi-Joins)
Aliases for Table Names
Thinking behind Creating Joins
Joining Tables (Non-Equi-Joins)
Joining Tables (Outer Joins)
Joining Tables (Inner Joins)
Group By and Group Functions
Group Function Examples
Group Function with Having
Data Warehousing and OLAP
Materialised views
Dimensions
ROLLUP functions
The ROLLUP operator
The CUBE operator
Analytical Functions
Ranking
Banding
Windowing
Moving Averages
LAG and LEAD
Advanced SQL Functions
Nesting Different Functions
Select with Minus, Union and Intersect
Connect By Prior
Hierarchies