select a.IMSI, a.GJ, a.YYS, count(case when substr(b.IMSI,1,5)<>46000 and b.operate_code=2 then a.IMSI else null end) as MRWZGXQQCS, count(case when substr(b.IMSI,1,5)<>46000 and b.operate_code=2 and b.result<>1 then a.IMSI else null end) as MRWZGXCGCS, case when count(case when substr(b.IMSI,1,5)<>46000 and b.operate_code=2 then a.IMSI else null end)=0 then 0 else count(case when substr(b.IMSI,1,5)<>46000 and b.operate_code=2 and b.result<>1 then a.IMSI else null)/count(case when substr(b.IMSI,1,5)<>46000 and b.operate_code=2 then a.IMSI else null end) as MRWZGXCGL, sum(c.MRZJCS) as MRZJCS, sum(c.MRZJHJCGCS) as MRZJHJCGCS, sum(d.MRBJCS) as MRBJCS, sum(d.MRBJHJCGCS) as MRBJHJCGCS, case when sum(c.MRZJCS)=0 then 0 else sum(c.MRZJHJCGCS)/sum(c.MRZJCS) end as MRZJWLJTL, case when sum(c.MRZJCS)=0 then 0 else sum(d.MRBJHJCGCS)/sum(d.MRBJCS) end as MRBJWLJTL, count(case when substr(b.msc,1,2)<>86 and a.GJ is not null and b.operate_code=2 then a.IMSI else null end) as MCWZGXQQCS, count(case when substr(b.msc,1,2)<>86 and a.GJ is not null and b.operate_code=2 and b.result<>1 then a.IMSI else null end) as MCWZGXCGCS, case when count(case when substr(b.msc,1,2)<>86 and a.GJ is not null and b.operate_code=2 then a.IMSI else null end)=0 then 0 else count(case when substr(b.msc,1,2)<>86 and a.GJ is not null and b.operate_code=2 and b.result<>1 then a.IMSI else null end)/ count(case when substr(b.msc,1,2)<>86 and a.GJ is not null and b.operate_code=2 then a.IMSI else null end) as MCWZGXCGL from (select * from TAB_A union select * from TAB_B union select * from TAB_C)a left join (select * from spark_odc_dwd.D_ENS_GMAP_MM where p_hour='#{time yyyyMMddHH}') b on a.IMSI=b.IMSI left join TAB_D c on a.IMSI=c.calling_imsi left join TAB_E d on a.IMSI=d.called_imsi group by a.IMSI, a.GJ, a.YYS

这是一个SQL查询语句，它的作用是查询一些移动通信网络数据，并进行聚合统计，得到一些关于网络用户和通信质量的指标。具体来说，它查询了一个包括三个子表的大表，并在此基础上进行了一系列聚合操作，包括计数、求和和条件判断等。最终，它返回了一个结果集，包括了一些指标，比如用户数量、成功通话次数、通话成功率等。