sql sub code example
Example 1: NESTED QUERY SQL
SELECT column_name [, column_name ]
FROM table1 [, table2 ]
WHERE column_name OPERATOR
(SELECT column_name [, column_name ]
FROM table1 [, table2 ]
[WHERE])
Example 2: what is subquery in sql
SUBQUERY IS NESTED QUERY INSIDE A SELECT,
INSERT OR UPDATE METHODS. OR INSIDE ANOTHER SUBQUERY