What is the issue with the below queryselect* from film_actor having actor_id=10a.Produce result with Incorrect Valuesb.c.Having will not with out where claused.Produce Result with correct valuese.None from the provided options
Question
What is the issue with the below queryselect* from film_actor having actor_id=10a.Produce result with Incorrect Valuesb.c.Having will not with out where claused.Produce Result with correct valuese.None from the provided options
Solution
The issue with the query is option c. "Having will not work without where clause".
The HAVING clause is used in SQL to filter the results of a GROUP BY clause, and it cannot be used without it. If you want to filter the results of a simple SELECT statement, you should use the WHERE clause.
So, if you want to select all the records from the film_actor table where actor_id is 10, you should use the WHERE clause, like this:
SELECT * FROM film_actor WHERE actor_id = 10;
This will return all the records where actor_id is 10. If you want to use the HAVING clause, you should use it with a GROUP BY clause, like this:
SELECT actor_id, COUNT(*) FROM film_actor GROUP BY actor_id HAVING actor_id = 10;
This will return the number of films for the actor with id 10.
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