what are ddl dml and dcl statements in sql?
['DML. DML is abbreviation of Data Manipulation Language. It is used to retrieve, store, modify, delete, insert and update data in database. ... ', 'DDL. DDL is abbreviation of Data Definition Language. ... ', 'DCL. DCL is abbreviation of Data Control Language. ... ', 'TCL. TCL is abbreviation of Transactional Control Language.']