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  • sql语句统计

    sql更新语句

    今天接到个需求需要具体如下:

    1.数据库表中有一个字段有3中类型:分别为,团委,学工,个人上报荣誉。

    2.展示内容:优先展示团委和学工两条,团委和学工不够使用个人上报补足两条。

    根据需求可得知分3中情况,某用户有其中类型的3种都有则取团委和学工各一条。

    如果只有一种类型则取2条。

    如果有2种类型。则分为 团委学工,团委个人,学工个人三种情况。

    具体语句实现如下:

    /*更新只有一次荣誉的直接更新*/

    select * from (
    select xgh, type,cs,twory,count(xgh) OVER(partition by xgh) as rylxcs from (
    select xgh,type,count(*) as cs,
    rtrim(split_part(string_agg(rymc,','),',',1)||','||split_part(string_agg(rymc,','),',',2),',') as twory
    from ods.ODS_20HX_RYCH
    GROUP BY xgh,type )as tab1)as table1 where rylxcs = 1


    /*更新只有3次荣誉的直接更新*/

    select xgh,string_agg(case when type='团委' then mc
    when type ='学工' then mc end ,','
    ) as rymc from (
    select xgh, type,cs,mc,count(xgh) OVER(partition by xgh) as rylxcs from (
    select xgh,type,count(*) as cs,min(rymc)as mc from ods.ODS_20HX_RYCH
    GROUP BY xgh,type )as t1) as tab1 where rylxcs = 3
    GROUP BY xgh

    /*更新2种荣誉的 要处理多次 区分多种情况*/

    select xgh,split_part(xgmc,',',1)||','||split_part(twmc,',',1)as rymc from (
    select
    xgh,sum(case when type='学工' then cs end )as xgcs,
    max(case when type='学工' then twory end )as xgmc,
    sum(case when type='个人上报' then cs end) as grcs,
    max(case when type='个人上报' then twory end) as grmc,
    sum(case when type='团委' then cs end) as twcs,
    max(case when type='团委' then twory end) as twmc
    from (
    select xgh, type,cs,twory,count(xgh) OVER(partition by xgh) as rylxcs from (
    select xgh,type,count(*) as cs,
    rtrim(split_part(string_agg(rymc,','),',',1)||','||split_part(string_agg(rymc,','),',',2),',') as twory
    from ods.ODS_20HX_RYCH
    GROUP BY xgh,type )as tab1)as table1 where rylxcs = 2
    GROUP BY xgh)as table2
    where xgcs is not null and twcs is not null
    union all
    select xgh,twmc from (
    select
    xgh,sum(case when type='学工' then cs end )as xgcs,
    max(case when type='学工' then twory end )as xgmc,
    sum(case when type='个人上报' then cs end) as grcs,
    max(case when type='个人上报' then twory end) as grmc,
    sum(case when type='团委' then cs end) as twcs,
    max(case when type='团委' then twory end) as twmc
    from (
    select xgh, type,cs,twory,count(xgh) OVER(partition by xgh) as rylxcs from (
    select xgh,type,count(*) as cs,
    rtrim(split_part(string_agg(rymc,','),',',1)||','||split_part(string_agg(rymc,','),',',2),',') as twory
    from ods.ODS_20HX_RYCH
    GROUP BY xgh,type )as tab1)as table1 where rylxcs = 2
    GROUP BY xgh)as table2
    where grcs is not null and twcs > 1
    union all
    select xgh,xgmc from (
    select
    xgh,sum(case when type='学工' then cs end )as xgcs,
    max(case when type='学工' then twory end )as xgmc,
    sum(case when type='个人上报' then cs end) as grcs,
    max(case when type='个人上报' then twory end) as grmc,
    sum(case when type='团委' then cs end) as twcs,
    max(case when type='团委' then twory end) as twmc
    from (
    select xgh, type,cs,twory,count(xgh) OVER(partition by xgh) as rylxcs from (
    select xgh,type,count(*) as cs,
    rtrim(split_part(string_agg(rymc,','),',',1)||','||split_part(string_agg(rymc,','),',',2),',') as twory
    from ods.ODS_20HX_RYCH
    GROUP BY xgh,type )as tab1)as table1 where rylxcs = 2
    GROUP BY xgh)as table2
    where grcs is not null and xgcs > 1
    union all
    select xgh,split_part(grmc,',',1)||','||twmc as rymc from (
    select
    xgh,sum(case when type='学工' then cs end )as xgcs,
    max(case when type='学工' then twory end )as xgmc,
    sum(case when type='个人上报' then cs end) as grcs,
    max(case when type='个人上报' then twory end) as grmc,
    sum(case when type='团委' then cs end) as twcs,
    max(case when type='团委' then twory end) as twmc
    from (
    select xgh, type,cs,twory,count(xgh) OVER(partition by xgh) as rylxcs from (
    select xgh,type,count(*) as cs,
    rtrim(split_part(string_agg(rymc,','),',',1)||','||split_part(string_agg(rymc,','),',',2),',') as twory
    from ods.ODS_20HX_RYCH
    GROUP BY xgh,type )as tab1)as table1 where rylxcs = 2
    GROUP BY xgh)as table2
    where grcs is not null and twcs = 1
    union all
    select xgh,split_part(grmc,',',1)||','||xgmc as rymc from (
    select
    xgh,sum(case when type='学工' then cs end )as xgcs,
    max(case when type='学工' then twory end )as xgmc,
    sum(case when type='个人上报' then cs end) as grcs,
    max(case when type='个人上报' then twory end) as grmc,
    sum(case when type='团委' then cs end) as twcs,
    max(case when type='团委' then twory end) as twmc
    from (
    select xgh, type,cs,twory,count(xgh) OVER(partition by xgh) as rylxcs from (
    select xgh,type,count(*) as cs,
    rtrim(split_part(string_agg(rymc,','),',',1)||','||split_part(string_agg(rymc,','),',',2),',') as twory
    from ods.ODS_20HX_RYCH
    GROUP BY xgh,type )as tab1)as table1 where rylxcs = 2
    GROUP BY xgh)as table2
    where grcs is not null and xgcs = 1

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  • 原文地址:https://www.cnblogs.com/zzay/p/13064293.html
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