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CBSE Class 12 Computer Science Question 34 of 91

Relational Database and SQL — Question 12

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12
Question

Question 12

Which of the following is a DDL command?

  1. SELECT
  2. ALTER
  3. INSERT
  4. UPDATE
Answer

ALTER

Reason — DDL (Data Definition Language) commands in SQL are used to create and define tables and other database objects. Examples of DDL commands include ALTER, which is used to modify objects like tables, indexes, views, and constraints. On the other hand, SELECT, INSERT, and UPDATE commands are part of DML (Data Manipulation Language), used for retrieving, inserting, and updating data within the database.