how to use sub queries in sql 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: mssql subqueries
USE AdventureWorks2016;
GO
SELECT Ord.SalesOrderID, Ord.OrderDate,
(SELECT MAX(OrdDet.UnitPrice)
FROM Sales.SalesOrderDetail AS OrdDet
WHERE Ord.SalesOrderID = OrdDet.SalesOrderID) AS MaxUnitPrice
FROM Sales.SalesOrderHeader AS Ord;
GO
Example 3: subquery in sql
SUBQUERY IS NESTED QUERY INSIDE A
SELECT, INSERT OR UPDATE METHODS.
OR INSIDE ANOTHER SUBQUERY