Question

我的SQL查询如下：我在该查询中使用内连接... 我想将其修改为子查询

select distinct Auditdata.ID,        
ns.ProviderMaster_ID as CDRComment  
from Auditdata AuditData 
inner join AuditMaster       am 
on am.ID = AuditData.AuditMaster_ID 
inner join HomeCircleMaster hcm 
on hcm.Ori_CircleMaster_ID = am.CircleMaster_ID and hcm.Ori_ServiceTypeMaster_ID  = 1 and hcm.Dest_ServiceTypeMaster_ID = 1 inner join AuditTaggingMaster atm 
on atm.AuditMaster_ID = am.ID 
inner join NoSeriesMaster ns on 
(  ns.CircleMaster_ID = am.CircleMaster_ID or ns.CircleMaster_ID = hcm.Dest_CircleMaster_ID)   and ns.ProviderMaster_ID <>  am.ProviderMaster_ID and ns.ServiceTypeMaster_ID = 1 
inner join ProviderMaster_CallTypeMaster pm_ctm 
on pm_ctm.ProviderMaster_ID = am.ProviderMaster_ID                                                and pm_ctm.CallTypeMaster_ID = 101                                                and pm_ctm.CallTypeTagValue  =AuditData.CallTypeTag INNER JOIN NoSeriesMaster_Prefix PD ON AuditData.CallTo like PD.PrefixNo + '%'                                    AND AuditData.calltolen = PD.PrefixLen + PD.AfterPrefixLen  AND PD.PrefixNo + ns.NoSeries = LEFT(AuditData.CallTo, NoSeriesLen + PD.PrefixLen) where AuditData.TATCallType is null   and AuditData.AuditMaster_ID = 74   AND PD.PrefixType = 'SMS'

请帮帮我

感谢名单

Answer 1

我会尝试发布美化的查询。否则很难提供帮助。试着解释你还想做什么。有6个内连接。你想改变哪一个？无论如何。您的问题似乎与This one非常相似。请不要两次发布问题。

除此之外，您似乎正在尝试优化此查询。你为什么不问谁让它更快？在我看来，使用subquerys会让事情变得更糟。如果您需要帮助优化，我们需要更多信息，如表结构，索引，行数等...

select distinct Auditdata.ID, 
       ns.ProviderMaster_ID as CDRComment
  from Auditdata AuditData
 inner join AuditMaster       am on am.ID = AuditData.AuditMaster_ID
 inner join HomeCircleMaster hcm on hcm.Ori_CircleMaster_ID       = am.CircleMaster_ID
                                and hcm.Ori_ServiceTypeMaster_ID  = 1
                                and hcm.Dest_ServiceTypeMaster_ID = 1
 inner join AuditTaggingMaster atm on atm.AuditMaster_ID = am.ID
 inner join NoSeriesMaster ns on (  ns.CircleMaster_ID = am.CircleMaster_ID 
                                 or ns.CircleMaster_ID = hcm.Dest_CircleMaster_ID)
                             and ns.ProviderMaster_ID <>  am.ProviderMaster_ID
                             and ns.ServiceTypeMaster_ID = 1
 inner join ProviderMaster_CallTypeMaster pm_ctm on pm_ctm.ProviderMaster_ID = am.ProviderMaster_ID
                                                and pm_ctm.CallTypeMaster_ID = 101
                                                and pm_ctm.CallTypeTagValue  =AuditData.CallTypeTag
 INNER JOIN NoSeriesMaster_Prefix PD ON AuditData.CallTo like PD.PrefixNo + '%'
                                    AND AuditData.calltolen = PD.PrefixLen + PD.AfterPrefixLen
                                    AND PD.PrefixNo + ns.NoSeries = LEFT(AuditData.CallTo, NoSeriesLen + PD.PrefixLen)
 where AuditData.TATCallType is null
   and AuditData.AuditMaster_ID = 74
   AND PD.PrefixType = 'SMS

将内部联接转换为SQL子查询

1 个答案: