1 //根据人口数量查询 2 select * from tb_gdp g , tb_province p where g.provinceId=p.id and p.pnum > 10 and p.pnum<200000 and provinceId=1 3 4 //计算总利润率 5 select * from tb_gdp g , tb_province p where g.provinceId=p.id and p.pnum > 10 and p.pnum<200000 and provinceId=1 6 7 // 根据计算字段进行范围查询 8 select *, (g.agIncome + g.industryIncome - g.agInvest - g.industryInvest)/( g.agInvest + g.industryInvest )*100 as rate 9 from tb_gdp g , tb_province p 10 where g.provinceId=p.id and p.pnum > 10 and p.pnum<200000 and provinceId=1 11 and ((g.agIncome + g.industryIncome - g.agInvest - g.industryInvest)/( g.agInvest + g.industryInvest )*100) > 1 and ( (g.agIncome + g.industryIncome - g.agInvest - g.industryInvest)/( g.agInvest + g.industryInvest )*100 )< 100 12 13 //使用子查询的方式 14 select * from ( select g.*, p.`name` ,p.pnum, (g.agIncome + g.industryIncome - g.agInvest - g.industryInvest)/( g.agInvest + g.industryInvest )*100 as rate 15 from tb_gdp g , tb_province p 16 where g.provinceId=p.id ) as myview 17 where pnum > 10 and pnum<200000 and provinceId=1 18 and rate > 1 and rate < 100 19 20 21 //根据汇总数据查询明细 22 select * from ( select g.*, p.`name` ,p.pnum, (g.agIncome + g.industryIncome - g.agInvest - g.industryInvest)/( g.agInvest + g.industryInvest )*100 as rate 23 from tb_gdp g , tb_province p 24 where g.provinceId=p.id ) as myview 25 26 根据分组做条件查询明细 27 select * from ( select g.*, p.`name` ,p.pnum, (g.agIncome + g.industryIncome - g.agInvest - g.industryInvest)/( g.agInvest + g.industryInvest )*100 as rate 28 from tb_gdp g , tb_province p 29 where g.provinceId=p.id ) as myview 30 WHERE provinceId in ( 31 SELECT g.provinceId from tb_gdp g GROUP BY g.provinceId HAVING sum(g.agIncome + g.industryIncome) > 1000 32 ) 33 34 35 //汇总 36 select sum(pnum),sum(industryIncome),sum(agInvest) sum_ai, myview.month from ( select g.*, p.`name` ,p.pnum, (g.agIncome + g.industryIncome - g.agInvest - g.industryInvest)/( g.agInvest + g.industryInvest )*100 as rate 37 from tb_gdp g , tb_province p 38 where g.provinceId=p.id ) as myview 39 40 WHERE myview.month >2 and myview.month < 4 41 GROUP BY myview.month 42 having sum_ai>100 and sum_ai<200000