MySQL – Interval Operator Table of content MySQL INTERVAL Operator The INTERVAL operator in MySQL is used to create an interval between two different events or times. This interval can be in seconds, minutes, hours, days, etc. Thus, MySQL mainly uses this operator to perform date and time calculations, such as adding or subtracting a […]

MySQL – Using Joins Table of content A Join clause in MySQL is used to combine records from two or more tables in a database. These tables are joined together based on a condition, specified in a WHERE clause. For example, comparing the equality (=) of values in similar columns of two different tables can […]

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 […]