BEGIN PROMPT Add a NOT NULL COLUMN TO EXAMPLE_TAB DECLARE column_ Database_SYS.ColRec; BEGIN column_ := Database_SYS.Set_Column_Values('COLS8', 'VARCHAR2(10)', 'N','''My_Default''',keep_default_ => 'N'); Database_SYS.Alter_Table_Column('EXAMPLE_TAB', 'A', column_, TRUE); END;