Using cross apply in update statement
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24-01-2021 - |
문제
Is it possible to use the cross apply clause in the from part of an update statement, in SQL Server 2005?
해결책
You where right, Albert. I made some tests and found that it's possible, indeed. The use is the same as in a SELECT
statement. For example:
UPDATE some_table
SET some_row = A.another_row,
some_row2 = A.another_row/2
FROM some_table st
CROSS APPLY
(SELECT TOP 1 another_row FROM another_table at WHERE at.shared_id=st.shared_id) AS A
WHERE ...
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