Category Archives: mysql

MySQL – After Delete Trigger Table of content In general, a Trigger is defined as a response to an event. In MySQL, a trigger is called a special stored procedure as it does not require to be invoked explicitly like other stored procedures. The trigger acts automatically whenever the desired event is fired. Triggers are […]

MySQL – Data Types Table of content Data types are referred as the type of data, like string, integer, date-time etc., that can be stored in a column (field) of a table. Properly defining the fields in a table is important to the overall optimization of your database. You should use only the type and […]

MySQL – Union vs Join Table of content MySQL provides various relational operators to handle data that is spread across multiple tables in a relational database. Out of them, UNION and JOIN queries are fundamentally used to combine data from multiple tables. Even though they are both used for the same purpose, i.e. to combine […]