Answers for "what is a sql subquery"

SQL
1

subquery sql

UPDATE Book SET note= 'editore: ' + (SELECT name FROM Publisher WHERE Publisher.ID = Book.publisher)
Posted by: Guest on December-26-2020
0

subquery in sql

DELETE FROM dataflair_emp1
WHERE emp_id IN ( SELECT emp_id
                   FROM dataflair_emp2
                   WHERE age=25);  
select * from dataflair_emp1;
Posted by: Guest on July-19-2021

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