Java prepared like statement with an integer

Question

My problem, concerning prepared statements in java:

SELECT TrackingId FROM table where TrackingId = 5735053

TrackingId is an integer column in the database. Whe i change the query to:

SELECT TrackingId FROM table where TrackingId = '5735053'

it works fine as he converts it automaticly. Same goes to this query:

SELECT TrackingId FROM table where TrackingId LIKE '%5735%'

This works fine and the database is finding results. In java i want to pass the input value of the user to the query. It works with String and the like statement but not with int:

String query = "SELECT AnyString FROM table where AnyString like ?";

connectDatabase();

pstmt = connection.prepareStatement(query);
pstmt.setString(1, "%"+input+"%");
result = pstmt.executeQuery();

Now i want to pass an Integer through this statement and i have tried many things but always 0 results. So this won't work:

String query = "SELECT AnyInt FROM table where AnyInt like ?";

connectDatabase();

pstmt = connection.prepareStatement(query);
pstmt.setString(1, "%"+input+"%");
result = pstmt.executeQuery();

But if i type the query in my database programm it works fine and he is finding results. Can anybody help me with this here?

Answer 1

You can cast the field to varchar: cast(AnyInt as varchar) . The reason it works as a literal is that then SQL Server knows it is a comparison between int and string and will automatically coerce the int to string. However when you use a parameter, the parameter has the same type as the column: int, so the value %<somenumber>% is not a valid value (although I'm surprised that you don't get an exception).

Another option might be to cast the parameter: cast(? as varchar) . I am not 100% sure casting the parameter is supported by SQL Server.