As programming languages, variables are also widely used in databases as with them you can save and retrieve information quickly and efficiently within a routine.
In MySQL, the variables are used to optimize queries, inserts, and even deleting records, moreover, are also used in other routines and procedures in the database.
To create a variable in MySQL is very simple, just add the “@” character before the name of the variable and further assign a certain value to it, as shown below:
Using the syntax “: =” You can assign a value to the variable, you can also use the SET command to store certain information in a variable, it is not necessary to use the character “:”.
SET @var1 = 2
MySQL is undoubtedly one of the database that have the greatest number of advantages, especially when combined with the PHP programming language. Want to know more? Then visit our official page on MySQL with PHP.