Data Manipulation Language (DML) commands are used to modify the data stored in database objects such as tables. These commands are essential for performing CRUD (Create, Read, Update, Delete) operations.

List of DML Commands

Command	Description
SELECT	Retrieves data from one or more tables based on specified conditions.
INSERT	Adds new records to a table.
UPDATE	Modifies existing records in a table.
DELETE	Removes records from a table based on specified conditions.
MERGE	Combines insert, update, and delete operations into a single statement for data synchronization.
CALL	Executes a stored procedure.
EXPLAIN	Provides details about the execution plan of a query for performance analysis.

What is DML?

DML is a subset of SQL used to manage and manipulate data within the tables of a database. It enables users to retrieve and modify data as needed to maintain and analyze the database effectively.

Characteristics of DML

• DML commands are used to interact with the data in the database, not the structure.
• They can be used in transactions, which help maintain data integrity by allowing rollbacks and commits.
• DML statements can be combined with conditions to perform complex data operations.

Do's and Don'ts

Do's

• Use DML commands within transactions to ensure data integrity.
• Optimize DML queries for performance, especially when working with large datasets.
• Use appropriate indexing to speed up data retrieval operations.

Don'ts

• Don't run DML operations on large tables without proper performance considerations.
• Don't modify or delete data without ensuring you have proper backups.
• Don't use DML commands carelessly on production databases; always test in a development environment first.