Retrieve data contained in a comma-delimited list of values Warning!
Posted on Saturday, June 3, 2017
Say that you have a comma-separated String containing user IDs like following:
String userIDs = "1,2,5,8,23,67,101";
and that you want to fetch those users without splitting and looping their IDs.
Usually you do use CharIndex to search the expression:
"SELECT * FROM Users WHERE CharIndex(CAST(userID AS varchar(8)) + ',', + @userIDs) > 0";
However if you execute the above query the last ID will be omitted YEAH it will be indeed because it checks against value + comma which does not match when it comes to 101.
FIX: add the missing comma to the end of the string:
command.Parameters.AddWithValue"@userIDs", userIDs + ",";
Hope this helps someone!