IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_HRIC_IMPLITEM' AND KSQL_COL_NAME ='FATTACHMENTJSONDATA') 
 ALTER TABLE T_HRIC_IMPLITEM ADD (FATTACHMENTJSONDATA VARCHAR(2000) DEFAULT ' ' NOT NULL );