MySQL - Types of MySQL Queries

In MySQL, a query is a request or command sent to the database to retrieve, modify or delete data. It is a statement written in SQL (Structured Query Language) that specifies what data the user wants to retrieve, insert, update or delete from the database. Queries are used to perform operations on tables, such as selecting, filtering, sorting and grouping data, as well as joining multiple tables together.

Here are the different types of queries in MySQL:

1. DDL (Data Definition Language) queries: Used to define database schema or structure. Example: CREATE, ALTER, DROP, TRUNCATE, RENAME.

2. DML (Data Manipulation Language) queries: Used to manage and manipulate data within the database. Example: SELECT, INSERT, UPDATE, DELETE.

3. DCL (Data Control Language) queries: Used to control access to the database. Example: GRANT, REVOKE.

4. TCL (Transaction Control Language) queries: Used to manage transactions within the database. Example: COMMIT, ROLLBACK, SAVEPOINT.