Which of the following will be the correct SQL command to add a new column…

2023

Which of the following will be the correct SQL command to add a new column FEES in a table TEACHER?

  1. A.

    ALTER TABLE TEACHER
    ADD COLUMN FEES FLOAТ;

  2. B.

    ADD COLUMN FEES FLOAT
    INTO TEACHER;

  3. C.

    UPDATE TEACHER
    ADD COLUMN FEES FLOAT;

  4. D.

    INSERT INTO TEACHER
    ADD COLUMN FEES FLOAT;

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Show answer & explanation

Correct answer: A

To add a new column FEES to an existing table TEACHER, use the ALTER TABLE command. Correct SQL command is: ALTER TABLE TEACHER ADD COLUMN FEES FLOAT; ALTER TABLE → used to modify the table structure (schema).

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