This tutorial provide snippet on how to remove duplicate rows that may have created over time. This may be a result of a spam attack or by mistakenly repeating entries. They consume precious resources of the server and decrease over all performance of any system. There are many ways to remove duplicates rows form a MySQL server.

There are multiple ways to import database dumps in MySQL/MariaDB. First way to import databases it to use mysqldump utility.

MySQL snippet to select data between first day of the current month and current date.

When you make a Left Join or make a UNION query the DBMS will put NULL where their is no match in the set. This tutorial is aimed to discuss the options by which NULL can be substituted with 0 in MySQL DBMS.