IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_CAD_SUBELEMENT' AND KSQL_COL_NAME ='FSUPMATERIELCOUNT') 
 ALTER TABLE T_CAD_SUBELEMENT ADD (FSUPMATERIELCOUNT CHAR(1) DEFAULT '0' NOT NULL );
