shark怎么使用

這篇文章主要講解了“shark怎么使用”，文中的講解內(nèi)容簡單清晰，易于學(xué)習(xí)與理解，下面請大家跟著小編的思路慢慢深入，一起來研究和學(xué)習(xí)“shark怎么使用”吧！

//查詢有多少行數(shù)據(jù)
Select count(*) from SOGOUQ1;

//顯示前10行數(shù)據(jù)
select * from SOGOUQ1 limit 10;

//session查詢次數(shù)排行榜
select WEBSESSION,count(WEBSESSION) as cw from sogouQ1 group by WEBSESSION order by cw desc limit 10;

//建立cache表
create table sogouQ1_cached as select * from sogouq1;

//搜索結(jié)果排名第1，但是點(diǎn)擊次序排在第2的數(shù)據(jù)有多少?
select count(*) from sogouQ1_cached where S_SEQ=1 and C_SEQ=2;

//搜索用戶點(diǎn)擊的URL含baidu的數(shù)據(jù)有多少?
select count(*) from sogouQ1_cached where WEBSITE like '%baidu%';

//搜索結(jié)果排名第1，但是點(diǎn)擊次序排在第2,URL含baidu的數(shù)據(jù)有多少?
select count(*) from sogouQ1_cached where S_SEQ=1 and C_SEQ=2 and WEBSITE like '%baidu%';

//session查詢次數(shù)排行榜
select WEBSESSION,count(WEBSESSION) as cw from sogouQ1_cached group by WEBSESSION order by cw desc limit 10;

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//切換數(shù)據(jù)庫
use saledata;

//所有訂單中總銷售額
//select sum(b.amount) from tblStock a,tblStockDetail b where a.ordernumber=b.ordernumber
select sum(tblStockDetail.amount) from tblStock join tblStockDetail on tblStock.ordernumber=tblStockDetail.ordernumber;
43129783
68100782

//select sum(b.amount) from tblStock a,tblStockDetail b,tbldate c where a.ordernumber=b.ordernumber and a.dateid=c.dateid;
select sum(tblStockDetail.amount) from tblStock join tblStockDetail on tblStock.ordernumber=tblStockDetail.ordernumber join tbldate on tblstock.dateid=tbldate.dateid;
43128080 shark
68099079 hive

感謝各位的閱讀，以上就是“shark怎么使用”的內(nèi)容了，經(jīng)過本文的學(xué)習(xí)后，相信大家對shark怎么使用這一問題有了更深刻的體會，具體使用情況還需要大家實(shí)踐驗(yàn)證。這里是億速云，小編將為大家推送更多相關(guān)知識點(diǎn)的文章，歡迎關(guān)注！