Passing parameter to SQL select statement IN clause acts weird.

Question

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 Var         


        

Answer 1

('5688','5689') is an array of values.

Defining String param = "'5688','5689'"; and using it as (@param) makes ('5688','5689') a string. Which wont work.

Answer 2

Bibhas is correct. For me this worked:

string param="'1234','4567'"; we can't use param as SQL Parameter(@param).

command = new SqlCommand("SELECT * FROM table WHERE number IN (" + param + ")", connection);

command.ExcecuteReader();

Answer 3

A variable is not allowed in the IN clause.
You are expecting the values as a comma delimited string you could use the split function (user defined and non-standard) to join them with the original tables:

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=326300&SiteID=1

For more information you can visit this

Answer 4

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);