如何忽略條件下，如果參數值=「ALL」

Question

我發現這個鏈接

How to return all records if parameter is null

我需要，

忽略如上只是參數/條件下，當參數值所有。

如何做到這一點。

信息下面，TASK：不是空應該忽略，如果參數= ALL

Declare @psqluid varchar(15) = 'admin' 
Declare @psqlstartdate datetime = '06/01/2010' 
Declare @psqlenddate datetime = '06/28/2012' 
Declare @psqlcompany varchar(45) 
Declare @psqlapplication varchar(10) = 'APP2' 
Declare @psqlprogram varchar(10)= 'PROG1' 
SELECT * FROM [TMSFINAL].[dbo].[TMTMS] 
WHERE (@psqluid IS NULL OR [TMSFINAL].[dbo].[TMTMS].[tmsUserID]=@psqluid) 
AND [TMSFINAL].[dbo].[TMTMS].[tmsDate] >= @psqlstartdate 
AND [TMSFINAL].[dbo].[TMTMS].[tmsDate] <= @psqlenddate 
AND (@psqlcompany IS NULL OR [TMSFINAL].[dbo].[TMTMS].[tmsCompany] = @psqlcompany) 
AND [TMSFINAL].[dbo].[TMTMS].[tmsApplication] = @psqlapplication 
AND [TMSFINAL].[dbo].[TMTMS].[tmsProgram] = @psqlprogram 

Answer 1

IF @param!="ALL" 
BEGIN 
    SET @Sql += 'Condition' 
END 

是不是工作？

補充說：

WHERE @psqluid = "ALL" OR [TMSFINAL].[dbo].[TMTMS].[tmsUserID]=@psqluid ...