Connect 7.20 / 9.20

Hello, what is the difference between connect 7.20 and 9.20 on NT ? We have one application (dynamically linked) on NT which access our Informix DS on Linux. Absolutely no problems. I am just testing connect 9.20. Everything works ok only problems with SQL error messages do appear. --- For example: the apllication's sql_errmsg$() output for an INSERT or UPDATE when not all non NULL values are entered changes from DBError SQL(-391)-Cannot insert a null into column(awb.customer) to DBError SQL(-391)-Cannot insert a null into column() Additionaly a lot of errors can not be handled anymore and return with DBError SQLUnkown SQLCODE value returned by the database .... --- What might be the reason for that behavior ? Thanks for help Peter -- ------ Hiermit widerspreche ich der Nutzung oder Uebermittlung meiner Daten fuer Werbezwecke oder fuer die Markt- oder Meinungsforschung gemaess Par. 28 Abs. 3 Bundesdatenschutzgesetz.