Question

我有一个参数

@IsInRetry

如果是假，我必须将where条件设置为

attempts = 0

如果确实如此，我必须将where条件设置为

attempts > 0

怎么可以这样做？

Answer 1

尝试这种方式：

( (@IsInRetry = 0 and attempts = 0) or (@IsInRetry = 1 and attempts > 0) )

Answer 2

试试这个：

WHERE (attempts = @IsInRetry or (@IsInRetry = 1 and attempts > 0))

Answer 3

试试这个，也应该用于否定尝试： - ）

@IsInRetry = (attempts > 0)

问候。

Answer 4

此：

if @IsInRetry = 0x0
   BEGIN    
      SELECT * FROM dbo.tbl 
      WHERE attempts = 0
   END
ELSE    
   BEGIN 
      SELECT * FROM dbo.tbl 
      WHERE attempts = 1
   END

SQL Server：WHERE子句中的IF条件

4 个答案: