subquery in sql
UPDATE dataflair_emp1
SET salary=35000
WHERE emp_id = ( SELECT emp_id
FROM dataflair_emp1
WHERE post='Sr.Manager');
select * from dataflair_emp1;subquery in sql
UPDATE dataflair_emp1
SET salary=35000
WHERE emp_id = ( SELECT emp_id
FROM dataflair_emp1
WHERE post='Sr.Manager');
select * from dataflair_emp1;what is subquery in sql
SUBQUERY IS NESTED QUERY INSIDE A SELECT,
INSERT OR UPDATE METHODS. OR INSIDE ANOTHER SUBQUERYsubquery in sql
SELECT column_name
FROM table_name1
WHERE VALUE IN
(SELECT column_name
FROM table_name2
WHERE condition)subquery sql
UPDATE Book SET note= 'editore: ' + (SELECT name FROM Publisher WHERE Publisher.ID = Book.publisher)select in select sql
SELECT column1 = (SELECT column-name FROM table-name WHERE condition), column-names FROM table-name WEHRE conditionsubquery in sql
DELETE FROM dataflair_emp1
WHERE emp_id IN ( SELECT emp_id
FROM dataflair_emp2
WHERE age=25);
select * from dataflair_emp1;Copyright © 2021 Codeinu
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