"subquery sql" Code Answer's
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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
what is subquery in sql
SUBQUERY IS NESTED QUERY INSIDE A SELECT,
INSERT OR UPDATE METHODS. OR INSIDE ANOTHER SUBQUERY
why we use subquery in sql
We use subquery in order to get aggregate value in column without grouping data
select in select sql
SELECT column1 = (SELECT column-name FROM table-name WHERE condition), column-names FROM table-name WEHRE condition
Source: www.dofactory.com
subquery sql
UPDATE Book SET note= 'editore: ' + (SELECT name FROM Publisher WHERE Publisher.ID = Book.publisher)
Source: www.html.it
select in select sql
SELECT column-names FROM table-name1 WHERE value IN (SELECT column-name FROM table-name2 WHERE condition)
Source: www.dofactory.com
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