PGSQL基本操作语句

update table01 set name='msq_all' where id=122;
--更新数据
 
insert into table01(id,dmcode,name,month) values (122,1,'app_all',201706) ;
--插入数据
 
SELECT * FROM table01 where 1=1 ORDER BY  app_name,flag asc/desc ;
--查询数据并且排序
 
select * from persons limit 5 offset 0;
--查询起点0开始查询，返回5条数据
 
ORDER BY colname DESC NULLS FIRST / LAST;
--排序并且指定某数据排第一或最后
 
SELECT *,
(CASE WHEN province_type='省内'THEN 0 ELSE 1 END ) sn
FROM
table009 where 1=1
ORDER BY
CASE WHEN id='全省' and type='省内'  THEN 0 ELSE 1  END,sn;
--case...when..then...else... end
 
delete from table009 where id='';--删除数据