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yicheng
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exec sp_executesql N'update tcutSub set<br> fCutQty = @P1<br>where<br> fSn = @P2 and<br> fColor = @P3 and<br> fSm = @P4 and<br> fSize is null and<br> fCutQty = @P5 and<br> fMemo is null and<br> fGuid = @P6<br>', N'@P1 int,@P2 int,@P3 nvarchar(12),@P4 nvarchar(12),@P5 int,@P6 nvarchar(50)', 8, 207, N'红', N'12', 1, N'EA700862-EF88-4BFB-83AA-27999A14324B'<br><br>以上为一SQL语句,是我在SQL探测器中跟踪到的。<br>为何不能执行?<br>而<br>update tcutSub set fCutQty = 8 where fGuid='EA700862-EF88-4BFB-83AA-27999A14324B'<br><br>又可以执行!<br><br>为何?