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DATABASE MANAGEMENT SYSTEMWhich command is used to remove a relation from SQL? - (i) Drop table - (ii) Delete - (iii) Purge - (iv) Remove20242mDatabase Management SystemWhich of the following is an example of a DML command in SQL? (i) CREATE (ii) SELECT (iii) DROP (iv) ALTER20242mDATABASE MANAGEMENT SYSTEMWhich of the following is generally used for performing tasks like creating the structure of the relations or deleting relations? - (i) DML - (ii) Query - (iii) Relational schema - (iv) DDL20242mDATABASE MANAGEMENT SYSTEMWhich of the following operations is used if we are interested in only certain columns of a table? - (i) PROJECTION (ii) SELECTION (ii) UNION (iv) JOIN20212m
PreviousWhich of the following is *not* a feature of the relational database model? (i) Tables with rows and columns (ii) Use of SQL (iii) Pre-defined data access paths (iv) Data independenceNextWhich of the following is used for indexing in database systems? (i) Transaction log (ii) B-tree (iii) Views (iv) Triggers
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