传递参数设置为SQL SELECT语句子句中的行为怪异。

问题描述：

我已经得到了下面的查询返回2条记录（在DataSet中的查询生成器）

I've got the following query that returns 2 records (in DataSet's query builder)

SELECT        EmpID, Name, id
FROM          Users
WHERE        (CAST(id AS Varchar(20)) IN ('5688','5689'))

现在如果我不从后面的代码传递参数，而不是相同的查询：字符串参数='5688'，'5689';它返回null。

Now if I do the same query passing the parameter instead from code behind: String param = "'5688','5689'"; it returns null.

WHERE        (CAST(id AS Varchar(20)) IN (@param))

我试图起飞的第一个和最后一个，但是这并没有使探源。

I tried taking off the very first and last ', but that did not make a diffrence.

!!! id是一个独特的PK !!!

!!!id is a unique PK!!!

任何人有一个线索？

答

我找到解决的办法很简单，这就像一个魅力，而且也没有必要SPS或其他功能;

The solution I found is quite simple, this works like a charm and there's no need for sps or other functions;

SQL：

SELECT whatever 
FROM whatever
WHERE (PATINDEX('%''' + CAST(id AS Varchar(20)) + '''%', @param) > 0)

C＃：

String param = "'''1234'',''4567'''";
dataTable1 = tableAdapter1.getYourValues(param);