Study Guide: Tutorial #17 - How Oracle SQL Query Works Internally 1. Introduction This study guide covers the internal workings of a basic SQL SELECT statement in Oracle. We'll focus on how the query ...

PL/SQL stands for Procedural Language extension of SQL. PL/SQL is a combination of SQL along with the procedural features of programming languages. It was developed by Oracle Corporation in the early ...

A brief Introduction to Oracle-SQL-PL SQL,taught in our CSE216 Database Sessional course, is a SQL practice book written by Prof. Sukarna Barua.The book contains most of the fundamental sql queries ...

The SQL Developer unit testing framework involves a set of sequential steps for each test case. The steps are as follows, including the user input for before the step is run and the framework ...

This article explores the internals of materialized views and demonstrates how to precompute complex aggregates—having Oracle dynamically rewrite SQL to reference precomputed aggregate information.

For example, a SQL query requiring 10,000 rows to be presented in sorted order will often use a b-tree index to avoid the very large sort required to deliver the data to the end user. Figure A ...