What are the subsets of SQL?

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There is three significant subset of the SQL:

  1. Data definition language (DDL):DDL is used to define the data structure it consists of the commands like CREATE, ALTER, DROP, etc.
  2. Data manipulation language (DML):DML is used to manipulate already existing data in the database. The commands in this category are SELECT, UPDATE, INSERT, etc.
  3. Data control language (DCL):DCL is used to control access to data in the database and includes commands such as GRANT, REVOKE.