Hi, I created a Java JDBC class file that calls a PLSQL stored procedure. The procedure works in the database, however when calling the proc. through the Java class the following message appears, "invalid column index". What is this referring to? The resultset? Column names? Number of columns? The procedure has 4 IN parameters and a ref cursor OUT parameter. Since all of our business logic is packed in PLSQL packages, we need to know and solve the above. Help greatly appreciated.