MySQL – Handling Duplicates Table of content Tables or result sets in a database usually contain duplicate records. While duplicates are generally allowed, there are situations where it is necessary to prevent them. In such cases, it becomes essential to identify and remove duplicate records from a database table. Importance of Handling MySQL Duplicates There […]

MySQL – Transactions Table of content The MySQL Transactions The MySQL transaction is a sequential group of database manipulation operations, which is performed as if it were one single work unit. In other words, a transaction will never be complete unless each individual operation within the group is successful. If any operation within the transaction […]

MySQL – Sequences Table of content A sequence is a series of integers, starting from 1 and incrementing by 1 with each successive value. These sequences are usually used in databases, as many applications require each row in a table to have a unique identifier, and sequences provide an easy way to generate such values. […]