IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_PRIVACY_BLACKFIELDINFO_L' AND KSQL_COL_NAME ='FFIELD_NAME') 
 ALTER TABLE T_PRIVACY_BLACKFIELDINFO_L ADD (FFIELD_NAME NVARCHAR(100) DEFAULT ' ' NOT NULL );
