Which of the following is correct about database managementsystem's languages?
? data definition languages are used to specify the conceptualschema only.
? data manipulation languages are used to create thedatabases.
? data manipulation languages are used for retrieval, insertion, deletion and modification of data.
? data definition langauges are only used to update data in thedbms.

Data manipulation languages are used for the retrieval of the,insertion,deletion and modification of data.

Explanation:

Data Manipulation Languages(DML) are used to insert,delete,update,modify the data in the database.

The commands used to do these operations are as following:-

INSERT INTO :-This command is used to insert values in the database.

DELETE:-It is used to delete existing records from the table.

UPDATE:- It is used to modify the records in the table.

SELECT:- It is used to select data from database.

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