Welcome to our SQL Tutorials section where we will explain the basics of what SQL is and what SQL can be used for. Most modern Relational Database Management Systems (RDMS) use SQL, including MySQL, Microsoft Access, Oracle, MS SQL Server, MSDE, DB2, Sybase, Postgres and Informix. Our SQL tutorials will teach you how to use the most commonly used SQL commands and we'll provide examples throughout to help you understand the query better.
What is SQL?
Learn what SQL is, how it is used and what can be achieved using SQL.
What are SQL databases and tables?
Find out what SQL databases and tables are, the foundation of SQL and your starting point.
SQL statement: SELECT
Learn how to use the SELECT SQL statement to retrieve data from a database table.
SQL statement: INSERT
Learn how to use the INSERT SQL statement to insert data into a database table.
SQL statement: UPDATE
Learn how to use the UPDATE SQL statement to update data within a database table.
SQL statement: DELETE
Learn how to use the DELETE SQL statement to delete data from a database table.