查询通过计算列上的百分比将记录插入另一个 table

Question

我有 2 个具有以下结构的 Postgres table：

Table "public.tmp"
      Column       |          Type           | Collation | Nullable | Default 
-------------------+-------------------------+-----------+----------+---------
 MY_SL             | character varying(50)   |           |          | 
 Release           | character varying(50)   |           |          | 
 HOSTNAME          | character varying(50)   |           | not null | 
 UN NO.            | character varying(50)   |           |          | 
 STATUS            | character varying(50)   |           |          | 
 S_DATE            | character varying(50)   |           | not null | 

Table "public.mo"
      Column       |          Type           | Collation | Nullable |                 Default                 
-------------------+-------------------------+-----------+----------+-----------------------------------------
 id                | integer                 |           | not null | nextval('mo_id_seq'::regclass)
 HOSTNAME          | character varying(50)   |           | not null | 
 UN NO.            | character varying(50)   |           |          | 
 STATUS            | character varying(50)   |           |          | 
 S_DATE            | character varying(50)   |           | not null | 
 compliant_status  | character varying(50)   |           | not null |
 C_PERCENT         | character varying(50)   |           | not null |

假设我在 tmp table 中有如下数据：

Table: tmp

 MY_SL | Release | HOSTNAME   |  UN NO.|  STATUS   |      S_DATE    
------------+-------------+-----------+----------------------+------------------
 2     | 1       | RhelTest   | 7:1:8  | COMPLIANT | 2020-08-26
 12    | 1       | RhelTest   | 7:1:9  | COMPLIANT | 2020-08-26
 22    | 2       | RhelTest   | 7:2:1  | COMPLIANT | 2020-08-26
 4     | 1       | RhelTest   | 7:2:10 | NC        | 2020-08-26
 12    | 1       | RhelTest   | 7:1:9  | COMPLIANT | 2020-08-26
 22    | 2       | RhelTest   | 7:2:1  | COMPLIANT | 2020-08-26
 12    | 1       | RhelTest   | 7:1:9  | NC        | 2020-08-26
 22    | 2       | RhelTest   | 7:2:1  | COMPLIANT | 2020-08-26
 11    | 2       | RhelTest   | 7:2:11 | NC        | 2020-08-26
 1     | 3       | Demo1      | 7:2:11 | NC        | 2020-08-26
 23    | 3       | Demo1      | 7:2:11 | NC        | 2020-08-26
 1     | 3       | Demo1      | 7:2:11 | NC        | 2020-08-26
 23    | 3       | Demo1      | 7:2:11 | NC        | 2020-08-26
 1     | 3       | Demo1      | 7:2:11 | NC        | 2020-08-26
 23    | 3       | Demo1      | 7:2:11 | NC        | 2020-08-26
 333   | 3       | Demo2      | 7:2:11 | COMPLIANT | 2020-08-26
 333   | 3       | Demo2      | 7:2:11 | COMPLIANT | 2020-08-26
 333   | 3       | Demo2      | 7:2:11 | COMPLIANT | 2020-08-26
 333   | 3       | Demo2      | 7:2:11 | COMPLIANT | 2020-08-26
 333   | 3       | Demo3      | 7:2:11 | COMPLIANT | 2020-08-26
 333   | 3       | Demo3      | 7:2:11 | NC        | 2020-08-26
 333   | 3       | Demo3      | 7:2:11 | NC        | 2020-08-26
 333   | 3       | Demo3      | 7:2:11 | NC        | 2020-08-26
 333   | 3       | Demo3      | 7:2:11 | NC        | 2020-08-26
 432   | 3       | Demo3      | 7:2:11 | NC        | 2020-08-26 
 333   | 3       | Demo3      | 7:2:11 | NC        | 2020-08-26
 111   | 3       | Demo3      | 7:2:11 | NC        | 2020-08-26
 333   | 3       | Demo3      | 7:2:11 | NC        | 2020-08-26
 321   | 3       | Demo3      | 7:2:11 | NC        | 2020-08-26
 564   | 3       | Demo3      | 7:2:11 | NC        | 2020-08-26
 958   | 3       | Demo3      | 7:2:11 | COMPLIANT | 2020-08-26

我在下面有一个脚本，它根据

的条件将数据从 public.tmp 插入到 public.mo table

如果列 STATUS 具有针对特定 HOSTNAME 的混合值（COMPLIANT 和 NC），则 compliant_status 是 PARTIAL 并且
如果特定主机名的所有值都符合，则 compliant_status 符合并且
如果特定主机名的所有值都是 NC，则 compliant_status 是 NON_COMPLIANT


insert into mo ("HOSTNAME","UN NO.","STATUS","S_DATE", compliant_status)
        select "HOSTNAME","UN NO.","STATUS","S_DATE",
         case
                when min_host_status <> max_host_status then 'PARTIAL'
                when min_host_status = 'NC' then 'NON_COMPLIANT'
                else min_host_status
         end
        from (
         select t.*,
                min("STATUS") over(partition by "HOSTNAME") min_host_status,
                max("STATUS") over(partition by "HOSTNAME") max_host_status
         from tmp_aix t
         where "STATUS" != 'NOT_APPLICABLE'
) t;

现在我要根据以下条件显示compliant_status：

如果没有。特定 HOSTNAME 的 STATUS 列中的 COMPLIANT 值大于 80%，则 compliant_status 是 COMPLIANT。
如果没有。特定 HOSTNAME 的 STATUS 列中的 COMPLIANT 值小于 80%，则 compliant_status 为 NON_COMPLIANT。

根据以上数据，我期望最终输出如下：

主机名：RhelTest，合规率：88.88%， compliant_status：合规

主机名：Demo1，符合 %: 0%, compliant_status: NON_COMPLIANT

主机名：Demo2，符合 %: 100%, compliant_status：合规

主机名：Demo3，合规率：16.67%， compliant_status: NON_COMPLIANT

最终预期table:

Table: public.mo

  HOSTNAME  |  UN NO.     |  STATUS   | S_DATE  | compliant_status  | C_PERCENT
------------+-------------+-----------+----------------------+------------------
 RhelTest   | 7:1:8  | COMPLIANT | 2020-08-26   | COMPLIANT         | 88.88
 RhelTest   | 7:1:9  | COMPLIANT | 2020-08-26   | COMPLIANT         | 88.88
 RhelTest   | 7:2:1  | COMPLIANT | 2020-08-26   | COMPLIANT         | 88.88
 RhelTest   | 7:2:10 | COMPLIANT | 2020-08-26   | COMPLIANT         | 88.88
 RhelTest   | 7:1:9  | COMPLIANT | 2020-08-26   | COMPLIANT         | 88.88
 RhelTest   | 7:2:1  | COMPLIANT | 2020-08-26   | COMPLIANT         | 88.88
 RhelTest   | 7:1:9  | NC        | 2020-08-26   | COMPLIANT         | 88.88
 RhelTest   | 7:2:1  | COMPLIANT | 2020-08-26   | COMPLIANT         | 88.88
 RhelTest   | 7:2:11 | COMPLIANT | 2020-08-26   | COMPLIANT         | 88.88
 Demo1      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 0
 Demo1      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 0
 Demo1      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 0
 Demo1      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 0
 Demo1      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 0
 Demo1      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 0
 Demo2      | 7:2:11 | COMPLIANT | 2020-08-26   | COMPLIANT         | 100
 Demo2      | 7:2:11 | COMPLIANT | 2020-08-26   | COMPLIANT         | 100
 Demo2      | 7:2:11 | COMPLIANT | 2020-08-26   | COMPLIANT         | 100
 Demo2      | 7:2:11 | COMPLIANT | 2020-08-26   | COMPLIANT         | 100
 Demo3      | 7:2:11 | COMPLIANT | 2020-08-26   | NON_COMPLIANT     | 16.67
 Demo3      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 16.67
 Demo3      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 16.67
 Demo3      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 16.67
 Demo3      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 16.67
 Demo3      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 16.67
 Demo3      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 16.67
 Demo3      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 16.67
 Demo3      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 16.67
 Demo3      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 16.67
 Demo3      | 7:2:11 | NC        | 2020-08-26   | NON_COMPLIANT     | 16.67
 Demo3      | 7:2:11 | COMPLIANT | 2020-08-26   | NON_COMPLIANT     | 16.67

Answer 1

如果我没听错，你可以使用window功能：

select m.*,
    100 * avg((compliant_status = 'COMPLIANT')::int) over(partition by hostname) c_percent
    case when avg((compliant_status = 'COMPLIANT')::int) over(partition by hostname) >= 0.8
        then 'COMPLIANT'
        else 'NON_COMPLIANT'
    end as final_compliant_status
from mo m

Answer 2

@GMB 感谢您的帮助。以下查询帮助我满足了我的要求

insert into mo ("HOSTNAME","UN NO.","STATUS","S_DATE", compliant_status, c_percent)
select "HOSTNAME","UN NO.","STATUS","S_DATE",
case 
when avg(("STATUS" = 'COMPLIANT')::int) over(partition by "HOSTNAME") >= 0.8
then 'COMPLIANT'
else 'NON_COMPLIANT'
end as compliant_status,
100 * avg(("STATUS" = 'COMPLIANT')::int) over(partition by "HOSTNAME") c_percent
from mo m
;

查询通过计算列上的百分比将记录插入另一个 table

query to insert records to another table by calculating the percentage on a column

sql

postgresql

case

percentage

sql-insert