WHERE ?? ???? SQL Server 2005?? CASE ? ???? ???
SQL Server 2005??? CASE ?? ???? ????? ? ????. ??? ??? ?? ?????. ELSE ?? ???? ??? ?? ?? ?? ??? ? ??? ?? ???? ????? ???? ? ? ????. ? ??? WHERE ?? ???? ??? ? ????.
?? ???? ??????.
UPDATE dbo.TestStudents
SET LASTNAME =
( CASE
WHEN (LASTNAME = 'AAA') THEN 'BBB'
WHEN (LASTNAME = 'CCC') THEN 'DDD'
WHEN (LASTNAME = 'EEE') THEN 'FFF'
ELSE (LASTNAME)
END )
? ???? 'dbo.TestStudents' ???? ???? ?????? 'LASTNAME' ?? ??? ?? ?????. ??? ??? ??. ??? ELSE ?? ??? ??? ?? ?? ????? ???? ???? ?? ???? ?????.
? ?? ?????? WHERE ?? ???? ?????? ?? ???? ???? ? ????.
UPDATE dbo.TestStudents
SET LASTNAME = CASE
WHEN LASTNAME = 'AAA' THEN 'BBB'
WHEN LASTNAME = 'CCC' THEN 'DDD'
WHEN LASTNAME = 'EEE' THEN 'FFF'
ELSE LASTNAME
END
WHERE LASTNAME IN ('AAA', 'CCC', 'EEE')
WHERE ?? ???? ???? 'LASTNAME' ?? 'AAA', 'CCC' ?? 'EEE'? ???? ?????. ??? ?? ??? ???? ??? ?? ?? ?? ????? ???? ?? ??? ? ????. ??? WHERE ?? ???? ?? SQL Server 2005?? CASE ? ????? ????? ? ???? ?????.
? ??? WHERE ?? SQL Server 2005?? CASE ? ????? ??? ???? ? ?????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
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