Category Archives: mysql

MySQL – MINUS Operator Table of content MySQL MINUS Operator The MySQL MINUS operator is one of the set operators which is used to fetch unique records from one table that do not exist in another table. In other words, the MINUS operator compares two tables and returns the unique rows from the first table […]

MySQL – UNION Operator Table of content MySQL UNION Operator The UNION operator in MySQL combines the data (without duplicate records) from multiple tables. We can use UNION if we want to select rows one after the other from several tables or several sets of rows from a single table all as a single result […]

MySQL – UNION vs UNION ALL Table of content UNION and UNION ALL operators in MySQL are used to retrieve the rows from multiple tables and return them as one single table. However, for these operators to work on these tables, they need to follow the conditions given below − The tables to be combined […]