Category Archives: sql

SQL – EXISTS Operator Table of content The SQL EXISTS Operator The SQL EXISTS operator is used to verify whether a particular record exists in a MySQL table. While using this operator we need to specify the record (for which you have to check the existence) using a subquery. The EXISTS operator is used in […]

SQL – SORTING Results Table of content The SQL ORDER BY clause is used to sort the data in ascending or descending order, based on one or more columns. By default, some databases sort the query results in an ascending order. In addition to that, ORDER BY clause can also sort the data in a […]

SQL – UPDATE View Table of content SQL UPDATE View Statement A view is a database object that can contain rows (all or selected) from an existing table. It can be created from one or many tables which depends on the provided SQL query to create a view. Unlike CREATE VIEW and DROP VIEW there […]