oracle 判断字段是否为null

 select * from t_botnet where botnet_note_c = nullhtml

没有返回任何结果。post

 

 select * from t_botnet where botnet_note_c is nullhtm

返回正确结果。blog

转载于:https://www.cnblogs.com/peterpanzsy/archive/2013/04/09/3010170.htmlclass