【原创】Mysql 优化记录

Mysql 优化记录
# ################################################# 业务
#################################################################
#获取应用的所有业务列表
#select * from business where businessId in (select businessId
from rel_app_business where appId = 1 );
#首次编译执行时间0.016 sec. 之后执行时间0.000sec. 优化后执行时间：0.000sec.
select business.* from business inner join rel_app_business on
business.businessId =rel_app_business.businessId
 where appId = 51 ;

# ################################################# 服务
#################################################################
#获取指定应用、业务 所关联的所有服务信息
#select * from service where serviceId in (select serviceId
from rel_business_service where appBusinessId in(select
appBusinessId from rel_app_business where appId= 51 and businessId=
2 ));
#执行时间3.354sec，优化后执行时间 0.000sec.
select * from service inner join (select serviceId from
rel_business_service as rbs inner join rel_app_business as rab
 on rbs.appBusinessId=rab.appBusinessId where
 rab.appId= 51 and rab.businessId= 2) as nt on
service.serviceId=nt.serviceId;

#根据应用/业务 关联id，获取所有的服务信息
#select * from service where serviceId in (select serviceId
from rel_business_service where appBusinessId = 8);
#执行事件1.045 sec/ 1.388 sec/ 1.123 sec，优化后首次编译执行0.016
sec，之后0.000 sec.
select service.* from service inner join rel_business_service
on service.serviceId = rel_business_service.serviceId where
rel_business_service.appBusinessId = 8;

# ################################################# 句式
#################################################################
#获取模版下的所有句式
#select tp.*, tt.templateName from template_pattern as tp,
template as tt where tp.templateId = tt.templateId and tp.dr = 0
and tp.templateId = 1 order by tp.ts desc limit 0, 10;
#首次编译执行0.015sec, 之后0.000sec。优化后0.000 sec.
select tp.*, tt.templateName from template_pattern as tp inner
join  template as tt on tp.templateId =
tt.templateId where tp.dr = 0 and tp.templateId = 1 order by tp.ts
desc limit 0, 10;

# ################################################# 同义词
#################################################################
#加载同义词
#select tts.*, ts.serviceName from template_synset as tts,
service as ts  where tts.serviceId = ts.serviceId
and  tts.dr=0 and tts.userId=1 order by tts.ts
desc limit 0, 10000;
#执行时间 0.000 sec, 优化0.000sec .暂未提高.explain 结果一样。
select tts.*, ts.serviceName from template_synset as tts inner
join  service as ts  on
tts.serviceId = ts.serviceId where tts.dr=0 and tts.userId=1 order
by tts.ts desc limit 0, 10000;

#获取某个服务的所有同义词
#select tst.*, ts.ServiceName from template_synset as
tst,service as ts where tst.serviceId = ts.serviceId and
tst.serviceId = 1 order by tst.ts desc limit 0, 1000;
#执行时间 0.000 sec, 优化0.000sec .暂未提高. explain 一样
select tst.*, ts.ServiceName from template_synset as tst inner
join service as ts on tst.serviceId = ts.serviceId where
tst.serviceId = 1 order by tst.ts desc limit 0, 1000;

#获取某个用户的同义词
#select tst.*, ts.ServiceName  from
template_synset tst,service as ts where tst.serviceId =
ts.serviceId and tst.userId = 1 ;
#执行时间 0.000 sec, 优化0.000sec .暂未提高. explain 一样
select tst.*, ts.ServiceName  from
template_synset tst inner join service as ts on tst.serviceId =
ts.serviceId where tst.userId = 1 ;

# ################################################# 模版
#################################################################
#获取某个服务的所有模版
#select tt.*, ts.serviceName from template as tt, service as
ts where tt.serviceId = ts.serviceId and tt.dr = 0 and tt.serviceId
= 1 ;
#执行时间 0.000 sec, 优化0.000sec .explain 一样
select tt.*, ts.serviceName from template as tt inner join
 service as ts on tt.serviceId = ts.serviceId
where tt.dr = 0 and tt.serviceId = 1 ;

# ################################################# 词条
#################################################################
#加载词条
#explain select tte.*, tt.termName, ttl.languageName from
term_entry as tte, term as tt, term_language as ttl where
tte.languageId = ttl.languageId and tte.termId = tt.termId and
tte.dr=0 and tte.userId = 1 and tte.termId = 1 order by tte.ts desc
limit 0,10;
#执行时间0.639 sec/ 0.671sec/ 0.655sec. 优化后0.608 sec, 0.609 sec,
0.640 sec, term_entry增加一个索引，字段有termId/userId . 0.000 sec.
#explain select tte.*, tt.termName, ttl.languageName from
term_entry as tte left join term as tt on tte.termId = tt.termId
 left join term_language as ttl on tte.languageId
= ttl.languageId where tte.dr=0 and tt.dr=0 and tte.userId = 1 and
tte.termId = 1 and tt.termId = 1 order by tte.ts desc limit
0,10;

select tte.*, tt.termName, ttl.languageName from term_entry as
tte left join term as tt on tte.termId = tt.termId
 left join term_language as ttl on tte.languageId
= ttl.languageId where  tte.userId = 1 and
tte.termId = 1 and tte.dr=0 order by tte.ts desc limit 0,10;