Author Archives: user

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 – ANY, ALL Operators Table of content The SQL ANY and ALL operators are used to perform a comparison between a single value and a range of values returned by the subquery. The ANY and ALL operators must be preceded by a standard comparison operator i.e. >, >=, <, <=, =, <>, != and […]

SQL – IN Operator Table of content The SQL IN Operator The SQL IN Operator is used to specify multiple values or sub query in the WHERE clause. It returns all rows in which the specified column matches one of the values in the list. The list of values or sub query must be specified […]