Question

I’ve started using prepared statement for my sql updates, but I seem to be getting a snag when I’m updating. The logic seems sound but I get an error whenever it goes into the update segment. I can delete or insert fine. Anywho…

Connection con = getDBConnection();
PreparedStatement pstmt = null;

String query = "update table set int = ?, String= ? where int= ? and date= ?";
pstmt = con.prepareStatement(query);
pstmt.setInt(1, var);
pstmt.setDate(2, sqlDate);
pstmt.setInt(3, intVar);
pstmt.setString(4, stringVar);
pstmt.executeUpdate();

Am I doing something wrong here? I’ve done all the troubleshooting I can and everything seems fine except for this, potentially.

Error = "A non-numeric character was found where a numeric was expected"

Answer 1

You’ve got your string and date the wrong way round – you’re calling setDate(2, ...) when the second parameter is in the context of “String = ?” and setString(4, ...) when the fourth parameter is in the context of “date = ?”.

Admittedly the error you’re getting is somewhat odd for that, but it’s all I can see…