Data modification statements
Data Manipulation Language (DML) besides of the SELECT statement that retrieves information from databases includes also statements modifying data state. These statements are:
| Statement | Function |
|---|---|
| INSERT | Inserts rows into database table |
| UPDATE | Changes values in columns of database table |
| DELETE | Deletes rows from database table |
| MERGE | Performs different modification operations on the target table depending on the results of the join with the target table |
You can take practice with these statements when trying to solve DML exercises on SQL-EX.RU.