paip.輸入法程式設計---帶ord gudin去重複-
作者Attilax ， EMAIL:[email protected]
來源：attilax的專欄
位址：http://blog.csdn.net/attilax
--------查詢重複(不同ORD)
SELECT
hezi,
atian,
gudin,
count(id) AS num
FROM
gaopinzi
WHERE
LENGTH(atian) > 0 and ( del is null or del=0) and lang='chinese'
GROUP BY
hezi,
atian
HAVING
num > 1
-----------加入臨時表.
DELETE from tmp_tsiku;
insert tmp_tsiku(hezi,atian,gudin,lang)
SELECT
hezi,
atian,
gudin,
count(id) AS num
FROM
gaopinzi
WHERE
LENGTH(atian) > 0 and ( del is null or del=0) and lang='chinese'
GROUP BY
hezi,
atian
HAVING
num > 1
;
select * from tmp_tsiku
去重複存儲過程 conf_del
----------------------
原理如下：
for( tmp_tsiku )
if(getTsityao_count(hezi,py))
{
baolyeu_id= get_top1(hezi,py);
del_other(hezi,py,baolyeu_id);
}
BEGIN
#Routine body goes here...
declare tmpName varchar(200) default '' ;
declare var_ati varchar(200) default '' ;
declare havgudin int;
declare gundi_id int;
declare rownum int;
declare tsityao_count int;
declare baolyeu_id int;
declare tmpint int;
DECLARE isRecordNotFound int;
declare cur1 CURSOR FOR select hezi,atian from tmp_tsiku where 1=1 ;
declare continue handler for not found set isRecordNotFound = 1;
-- Oracle的PL/SQL的指針有個隐性變量%notfound，
-- Mysql是通過一個Error handler的聲明來進行判斷的，
-- declare continue handler for Not found (do some action);
-- 在Mysql裡當遊标周遊溢出時，會出現一個預定義的NOT FOUND的Error，
-- 我們處理這個Error并定義一個continue的handler就可以了
-- 下面一句不能沒有，否則将會進不了while循環
set isRecordNotFound = 0;
set rownum=1;
/*開遊标*/
#set tmpName=; set var_ati
OPEN cur1;
/*遊标向下走一步*/
FETCH cur1 INTO tmpName,var_ati;
/* 循環體 這很明顯 把遊标查詢出的 name 都加起并用 ; 号隔開 */
WHILE ( isRecordNotFound = 0 ) DO
set tsityao_count=getTsityao_count(tmpName,var_ati);
if tsityao_count>1 THEN
select havgudin,rownum ;
set
baolyeu_id= get_top1(tmpName,var_ati);
select gundi_id,rownum ;
set
tmpint= del_other(tmpName,var_ati,baolyeu_id);
end if;
set rownum=rownum+1;
/*yao jya jeig select ,beri zweiheu yg result b show chwlai.. */
select 'the end';
/*遊标向下走一步*/
FETCH cur1 INTO tmpName,var_ati;
END WHILE;
CLOSE cur1;
END
-------getTsityao_count---------
BEGIN
#Routine body goes here...
DECLARE gudinid int ;
set @gudinid= (
SELECT
COUNT(*)
FROM
gaopinzi
WHERE
(del IS NULL OR del = 0)
AND lang = 'chinese'
AND hezi = hezi
AND atian =py
);
RETURN @gudinid;
END
--------get_top1-----------
BEGIN
#Routine body goes here...
DECLARE gudinid int ;
set @gudinid= ( select id from gaopinzi where lang='chinese' and HEZI=hezix and ATIAN=py
and (del is null or del=0)
order by gudin desc,ord,id
limit 1
);
RETURN @gudinid;
END
---------del_other---------
BEGIN
#Routine body goes here...
#select SQL_NO_CACHE del_no_gudin ('一','y',3192) c1
declare tmpName INT;
/*
update gaopinzi set del=1,deltime=now(),dely='del no-gudin'
*/
#SET NAMES 'utf8';
insert tmp(id,hezi,py)
select id,hezi,atian from gaopinzi
where lang='chinese' and HEZI=hezix and atian=py
and ( del is null or del=0)
and id!=baolyeuid
;
RETURN tmpName;
END
檢查得到的tmp是否OK.
-----------
觸發器日志
---------
以便進行誤删除恢複..
CREATE TRIGGER `deladdtime` AFTER UPDATE ON `gaopinzi` FOR EACH ROW begin
insert logx(idop,eventx,timex,demo,hezi,pyold,pynew)values( old.id,'update rec',now(),'',old.hezi,old.atian,new.atian);
end;
删除蟲複
-----------
update gaopinzi set del=1,deltime=now(),dely='del no-gudin'
where id in (select id from tmp)
----------恢複誤删除的記錄
select * from logx WHERE id>=6 and id<=10
(select idop from logx WHERE id>=6 and id<=10);
select * from gaopinzi where id in (13083,15319,15736,16030,137815);
UPDATE gaopinzi set del=0,deltime=now(),dely='hweif' where id in (13083,15319,15736,16030,137815);
select * from gaopinzi where id=137815
------------------已下為測試SQL--------------
------------------已下為測試SQL--------------
select * from gaopinzi where lang='chinese' and HEZI='七' and ( del is null or del=0) order by id
limit 7;
select * from gaopinzi where lang='chinese' and HEZI='一' and ( del is null or del=0)
exec QUERY_chonf_nosame_ord
-----查詢是否有重複的記錄...
SELECT
COUNT(*)
FROM
gaopinzi
WHERE
LENGTH(hezi) = 3
AND (del IS NULL OR del = 0)
AND lang = 'chinese'
AND hezi = '針'
AND atian = 'jenjs'
ORDER BY
gudin DESC,
ord
-------得到要保留的ID
SELECT
*
FROM
gaopinzi
WHERE
LENGTH(hezi) = 3
AND (del IS NULL OR del = 0)
AND lang = 'chinese'
AND hezi = '針'
AND atian = 'jenjs'
ORDER BY
gudin DESC,
ord
LIMIT 1
------删除其他記錄.
update gaopinzi set del=1 where
LENGTH(hezi) = 3
AND (del IS NULL OR del = 0)
AND lang = 'chinese'
AND hezi = '針'
AND atian = 'jenjs'
and id!=@top1
select * from gaopinzi
where lang='chinese' and HEZI='一' and atian='y'
and ( del is null or del=0)
and gudin=0 and id!=3192
=============
update gaopinzi set del=1 ,dely='test' where id=7106 and atian='cy'
update gaopinzi set del=1 ,dely='test' where id=7106 and atian='cy'
select * from gaopinzi where id=7106
select * from tmp
select hezi,atian from gaopinzi where lang='chinese' and (del is null or del=0) and LENGTH(hezi)=3
and ord=99 order by hezi
select * from gaopinzi where lang='chinese' and (del is null or del=0) and LENGTH(hezi)=3 and ord=99
order by hezi
select havgudin('針','jen')
select havgudin('一','y')