Learn how to master the SELECT statement to form truly useful data queries. This article explains functions, clauses, and keywords that will make your life a lot easier.

Shelley Doll finishes her coverage of SQL data types with an overview of datetime and interval data types. Learn more about the basic syntax of these standard SQL types.

Basics Part 1 of this book is all about SQL, the most popular language used for interacting with relational databases, the main focus of the book. The goal of this chapter is to introduce the most ...

A collection of SQL basics, including table creation, data insertion, and query examples for retrieving and analyzing employee data. Covers filtering, grouping, sorting, and pattern matching. This ...

Free Tutorial : Oracle PL SQL Tutorial - font color000000What is PLSQLPLSQL stands for Procedural Language extension of SQLPLSQL is a combination of SQL along ...

Assuring optimal performance of database applications starts with coding properly formulated SQL. Poorly written SQL and application code is the cause of most performance problems. As much as 75% of ...