sql cross apply vs join
SELECT M.ID,M.NAME,D.PERIOD,D.QTY
FROM MASTER M
INNER JOIN
(
SELECT TOP 2 ID, PERIOD,QTY
FROM DETAILS D
ORDER BY CAST(PERIOD AS DATE)DESC
)D
ON M.ID=D.IDsql cross apply vs join
SELECT M.ID,M.NAME,D.PERIOD,D.QTY
FROM MASTER M
INNER JOIN
(
SELECT TOP 2 ID, PERIOD,QTY
FROM DETAILS D
ORDER BY CAST(PERIOD AS DATE)DESC
)D
ON M.ID=D.IDdifference between cross apply and inner join
JOIN operators can be used to join two physical tables and JOIN operators can be replaced by 'APPLY' operators in order to achieve the same results but it is mainly used to join a physical table with output of a table valued function.Copyright © 2021 Codeinu
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