alter table TAB_SMS_BLACKLIST add(BLACK_TYPE NUMBER default 1 not null,COMPANY_ID NUMBER,BLACK_NAME VARCHAR2(64)) ; comment on column TAB_SMS_BLACKLIST.BLACK_TYPE is '--黑名单级别 1-企业级,2-系统级 默认为1'; comment on column TAB_SMS_BLACKLIST.COMPANY_ID is '--公司编号'; comment on column TAB_SMS_BLACKLIST.BLACK_NAME is '--黑名单姓名(号码的主人),默认存储电话号码'; --删除主键 alter table tab_sms_blacklist drop primary key; --添加单个主键 alter table tab_sms_blacklist add primary key(mobile); --添加复合主键 alter table tab_sms_blacklist add primary key(mobile,COMPANY_ID); --修改字段类型(长度) alter table tab_sms_blacklist modify mobile varchar2(22); --(添加)修改默认值 alter table tab_sms_blacklist modify COMPANY_ID default -1 not null;
备注:TAB_SMS_BLACKLIST为表名