In database management systems, Data Manipulation Language (DML) is a syntax used to insert, update, and delete data in a database. DML statements are used to manipulate the data stored in the database and do not affect the structure of the database itself.
Some common examples of DML statements include:
SELECT: Used to retrieve data from the database.INSERT: Used to insert new rows into a table.UPDATE: Used to modify existing data in a table.DELETE: Used to delete rows from a table.
DML statements are commonly used by database users and application developers to manipulate the data stored in the database. They are used to insert new data, update existing data, and delete outdated or unnecessary data.
It is important to carefully plan and test DML statements before executing them, as they can have a significant impact on the data stored in the database. It is also important to consider the performance of DML statements and to use appropriate indexes and other optimization techniques to ensure that the statements execute efficiently.