The below query is correct or In-correctselect * from actors where actor_id in (select* from film_actor)a.Trueb.False

Question

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Solution 1

The query is incorrect. The subquery in the IN clause is trying to select all columns from the film_actor table, but it should only select one column. The correct query should look something like this:

SELECT * FROM actors WHERE actor_id IN (SELECT actor_id FROM film_actor)

So, the answer is:

b. False

Solution 2

The query is incorrect. The subquery in the IN clause should only return a single column, but in this case, it is returning all columns from the film_actor table. The correct query would look something like this:

SELECT * FROM actors WHERE actor_id IN (SELECT actor_id FROM film_actor)

So, the answer is b. False.

Solution 3

The query is incorrect. The subquery in the IN clause (select* from film_actor) is not correct. The subquery should return only one column which is used in the comparison, but in this case, it returns all columns from the film_actor table.

The correct query should look something like this:

select * from actors where actor_id in (select actor_id from film_actor)

So, the answer is b. False.

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