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日期:2024-07-12
Create a UNIQUE constraint on your subs_email column, if one does not already
exist: ALTER TABLE subs ......
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日期:2024-07-10
Try this: IF EXISTS (SELECT 1 FROM table1 WHERE col_1 = '4') THEN BEGIN
UPDATE ......
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日期:2024-07-12
This question has been asked before and already has an answer. If those
answers do not fully address your ......
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日期:2024-07-10
I have the following SQL query: IF EXISTS(SELECT * FROM ... INSERT INTO
component_psar (tbl_id, ......
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日期:2024-07-12
This is probably the problem right here: WHERE clockDate = GETDATE().
GetDate returns the current date ......
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日期:2024-07-13
The simple answer is that you can't do what you want - if you're after a straight
query then its going to be ......
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日期:2024-07-08
I've found a few "would be" solutions for the classic "How do I insert a new record
or update one if it ......
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日期:2024-07-10
17 Feb 2008 ... This is a pretty common situation that comes up when performing database
operations. A stored ......