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| PRINT REPLICATE('A--', 3) -- A--A--A-- | |
| -- 補零 | |
| DECLARE @C1 varchar(4) = '12'; | |
| PRINT DATALENGTH(@C1) -- 2 | |
| PRINT REPLICATE('0', 4 - DATALENGTH(@C1)) + @C1 -- 0012 |
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