常用的sql语句

赋权
grant all on t_flow_accessory  to hisunoa;  

     添加表中某个字段

 alter table 表名 add column(字段名,varchar(50))

 

根据时间段查询数据
SELECT * FROM kfts_recordinfo t WHERE 1=1 AND t.complaint_date between to_date('2013-07-24','yyyy-MM-dd') and to_date('2013-08-20','yyyy-MM-dd') ; 

 

删除表中某个字段
ALTER TABLE test_tab  DROP COLUMN user_number