zoukankan      html  css  js  c++  java
  • sql 联合查询速度慢,需要对其进行分组

    分组:
    SELECT   * FROM(
    SELECT ROW_NUMBER() OVER(ORDER BY  ProjID) as row_number,* FROM (

    select ProjApplyDate,projProperty,ProjID,ProjStatusCurrent,ProjGuId,ProjEtpId,ProjRegionId,ProjName,ProjAddress,ProjAreaSize,ProjCost,ProjCreateTime,ProjChargePerson,ProjChargePersonPhone,ProjApplyEtp,ProjApplyPerson,ProjApplyPersonPhone,ProjConstructEtp,ProjConstructPM,ProjConstructPMPhone,ProjDirector,ProjDirectorPhone,ProjSafeOrgz,ProjCode,ProjIsEnable
    ,min(ConSignDate) as ConSignDate,max(ConBalanceDate) as ConBalanceDate  
    from  dbo.fn_GetProjectsByUserId(100093) as p INNER join (select cog.ConProjId,cog.ConSignDate,cog.ConBalanceDate from dbo.Dat_Contract as cog  group by cog.ConProjId,cog.ConSignDate,cog.ConBalanceDate ) as co
    on   co.ConProjId=p.ProjID   and ConSignDate<='2015-09-22' and  ISNULL(ProjIsDeleted,0)!=1  group by ProjApplyDate,projProperty,ProjID,ProjStatusCurrent,ProjGuId,ProjEtpId,ProjRegionId,ProjName,ProjAddress,ProjAreaSize,ProjCost,ProjCreateTime,ProjChargePerson,ProjChargePersonPhone,ProjApplyEtp,ProjApplyPerson,ProjApplyPersonPhone,ProjConstructEtp,ProjConstructPM,ProjConstructPMPhone,ProjDirector,ProjDirectorPhone,ProjSafeOrgz,ProjCode,ProjIsEnable )as t1

    ) as tt where row_number between 1 and 5


    ---耗时0.01








    SELECT   * FROM(
    SELECT ROW_NUMBER() OVER(ORDER BY  ProjID) as row_number,* FROM (

    select ProjApplyDate,projProperty,ProjID,ProjStatusCurrent,ProjGuId,ProjEtpId,ProjRegionId,ProjName,ProjAddress,ProjAreaSize,ProjCost,ProjCreateTime,ProjChargePerson,ProjChargePersonPhone,ProjApplyEtp,ProjApplyPerson,ProjApplyPersonPhone,ProjConstructEtp,ProjConstructPM,ProjConstructPMPhone,ProjDirector,ProjDirectorPhone,ProjSafeOrgz,ProjCode,ProjIsEnable
    ,min(ConSignDate) as ConSignDate,max(ConBalanceDate) as ConBalanceDate  
    from  dbo.fn_GetProjectsByUserId(100093) as p INNER join dbo.Dat_Contract as co
    on   co.ConProjId=p.ProjID   and ConSignDate<='2015-09-22' and  ISNULL(ProjIsDeleted,0)!=1  group by ProjApplyDate,projProperty,ProjID,ProjStatusCurrent,ProjGuId,ProjEtpId,ProjRegionId,ProjName,ProjAddress,ProjAreaSize,ProjCost,ProjCreateTime,ProjChargePerson,ProjChargePersonPhone,ProjApplyEtp,ProjApplyPerson,ProjApplyPersonPhone,ProjConstructEtp,ProjConstructPM,ProjConstructPMPhone,ProjDirector,ProjDirectorPhone,ProjSafeOrgz,ProjCode,ProjIsEnable )as t1

    ) as tt where row_number between 1 and 5

    --耗时 0.18

  • 相关阅读:
    Redis Java API
    怎样测试TCP&UDP端口
    [转]太阳致敬式瑜伽
    [转]你所不知道的超级瘦腿运动——空中蹬自行车
    Oracle 存储过程学习
    hive Java API
    [转]骨盆操
    [转]HDFS客户端的权限错误:Permission denied
    【转】拇指拇外翻的纠正训练
    [转]shell 变量替换
  • 原文地址:https://www.cnblogs.com/change4now/p/5665183.html
Copyright © 2011-2022 走看看