我如何在Oracle SQL 19中透视

debugcn 发表于 Dev

丹尼尔·李

我在Oracle SQL 19中具有下表：

+---------+-----------+---------------------+
| job_num | job_stage |      timestamp      |
+---------+-----------+---------------------+
| job_1   | waiting   | 2020-01-28 11:51:00 |
| job_1   | waiting   | 2020-01-28 11:52:00 |
| job_1   | waiting   | 2020-01-28 11:53:00 |
| job_1   | running   | 2020-01-28 11:54:00 |
| job_1   | running   | 2020-01-28 11:55:00 |
| job_1   | running   | 2020-01-28 11:56:00 |
| job_1   | running   | 2020-01-28 11:57:00 |
| job_1   | finishing | 2020-01-28 11:58:00 |
| job_1   | finishing | 2020-01-28 11:59:00 |
| job_2   | waiting   | 2020-01-28 11:52:00 |
| job_2   | waiting   | 2020-01-28 11:53:00 |
| job_2   | waiting   | 2020-01-28 11:54:00 |
| job_2   | waiting   | 2020-01-28 11:55:00 |
| job_2   | waiting   | 2020-01-28 11:56:00 |
| job_2   | running   | 2020-01-28 11:57:00 |
| job_2   | running   | 2020-01-28 11:58:00 |
| job_2   | running   | 2020-01-28 11:59:00 |
| job_2   | running   | 2020-01-28 12:00:00 |
| job_2   | finishing | 2020-01-28 12:01:00 |
| job_2   | finishing | 2020-01-28 12:02:00 |
| job_2   | finishing | 2020-01-28 12:03:00 |
| job_2   | finishing | 2020-01-28 12:04:00 |
+---------+-----------+---------------------+

我想通过以下方式进行透视：

+---------+---------------------+---------------------+---------------------+---------------------+---------------------+---------------------+
| job_num |     min_waiting     |     max_waiting     |     min_running     |     max_running     |    min_finishing    |    max_finishing    |
+---------+---------------------+---------------------+---------------------+---------------------+---------------------+---------------------+
| job_1   | 2020-01-28 11:51:00 | 2020-01-28 11:53:00 | 2020-01-28 11:54:00 | 2020-01-28 11:57:00 | 2020-01-28 11:58:00 | 2020-01-28 11:59:00 |
| job_2   | 2020-01-28 11:52:00 | 2020-01-28 11:56:00 | 2020-01-28 11:57:00 | 2020-01-28 12:00:00 | 2020-01-28 12:01:00 | 2020-01-28 12:04:00 |
+---------+---------------------+---------------------+---------------------+---------------------+---------------------+---------------------+

更具体地说，对于每个job_num，对于每个job_stage，我想要获得最小时间戳和最大时间戳。然后，我想显示每个的最小和最大时间戳job_num。

有人可以告诉我如何在Oracle SQL 19中有效地做到这一点吗？任何帮助将不胜感激！

我在SQL中提供以下表格供您参考：

未透视表如下：

with t1 as (
            select 'job_1' as job_num
                   , 'waiting' as job_stage
                   , to_date('1/28/2020 11:51', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_1' as job_num
                   , 'waiting' as job_stage
                   , to_date('1/28/2020 11:52', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_1' as job_num
                   , 'waiting' as job_stage
                   , to_date('1/28/2020 11:53', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_1' as job_num
                   , 'running' as job_stage
                   , to_date('1/28/2020 11:54', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_1' as job_num
                   , 'running' as job_stage
                   , to_date('1/28/2020 11:55', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_1' as job_num
                   , 'running' as job_stage
                   , to_date('1/28/2020 11:56', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_1' as job_num
                   , 'running' as job_stage
                   , to_date('1/28/2020 11:57', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_1' as job_num
                   , 'finishing' as job_stage
                   , to_date('1/28/2020 11:58', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_1' as job_num
                   , 'finishing' as job_stage
                   , to_date('1/28/2020 11:59', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'waiting' as job_stage
                   , to_date('1/28/2020 11:52', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'waiting' as job_stage
                   , to_date('1/28/2020 11:53', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'waiting' as job_stage
                   , to_date('1/28/2020 11:54', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'waiting' as job_stage
                   , to_date('1/28/2020 11:55', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'waiting' as job_stage
                   , to_date('1/28/2020 11:56', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'running' as job_stage
                   , to_date('1/28/2020 11:57', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'running' as job_stage
                   , to_date('1/28/2020 11:58', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'running' as job_stage
                   , to_date('1/28/2020 11:59', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'running' as job_stage
                   , to_date('1/28/2020 12:00', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'finishing' as job_stage
                   , to_date('1/28/2020 12:01', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'finishing' as job_stage
                   , to_date('1/28/2020 12:02', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'finishing' as job_stage
                   , to_date('1/28/2020 12:03', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
            union
            select 'job_2' as job_num
                   , 'finishing' as job_stage
                   , to_date('1/28/2020 12:04', 'MM/DD/YYYY HH24:MI') as timestamp
                   from dual
                )
select *
from t1
order by job_num
, timestamp

数据透视表如下：

with t1 as (
            select 'job_1' as job_num
                   , to_date('1/28/2020 11:51', 'MM/DD/YYYY HH24:MI') as min_waiting
                   , to_date('1/28/2020 11:53', 'MM/DD/YYYY HH24:MI') as max_waiting
                   , to_date('1/28/2020 11:54', 'MM/DD/YYYY HH24:MI') as min_running
                   , to_date('1/28/2020 11:57', 'MM/DD/YYYY HH24:MI') as max_running
                   , to_date('1/28/2020 11:58', 'MM/DD/YYYY HH24:MI') as min_finishing
                   , to_date('1/28/2020 11:59', 'MM/DD/YYYY HH24:MI') as max_finishing                   
                   from dual
            union
            select 'job_2' as job_num
                   , to_date('1/28/2020 11:52', 'MM/DD/YYYY HH24:MI') as min_waiting
                   , to_date('1/28/2020 11:56', 'MM/DD/YYYY HH24:MI') as max_waiting
                   , to_date('1/28/2020 11:57', 'MM/DD/YYYY HH24:MI') as min_running
                   , to_date('1/28/2020 12:00', 'MM/DD/YYYY HH24:MI') as max_running
                   , to_date('1/28/2020 12:01', 'MM/DD/YYYY HH24:MI') as min_finishing
                   , to_date('1/28/2020 12:04', 'MM/DD/YYYY HH24:MI') as max_finishing                   
                   from dual
                )
select *
from t1
order by job_num

MT0

SELECT *
FROM   table_name
PIVOT(
  MIN( "TIMESTAMP" ) AS min,
  MAX( "TIMESTAMP" ) AS max
  FOR job_stage IN (
    'waiting' AS waiting,
    'running' AS running,
    'finishing' AS finishing
  )
)

要么：

SELECT job_num,
       MIN( CASE job_stage WHEN 'waiting' THEN "TIMESTAMP" END ) AS waiting_min,
       MAX( CASE job_stage WHEN 'waiting' THEN "TIMESTAMP" END ) AS waiting_max,
       MIN( CASE job_stage WHEN 'running' THEN "TIMESTAMP" END ) AS running_min,
       MAX( CASE job_stage WHEN 'running' THEN "TIMESTAMP" END ) AS running_max,
       MIN( CASE job_stage WHEN 'finishing' THEN "TIMESTAMP" END ) AS finishing_min,
       MAX( CASE job_stage WHEN 'finishing' THEN "TIMESTAMP" END ) AS finishing_max
FROM   table_name
GROUP BY job_num

对于您的样本数据，这两个都输出：

JOB_NUM | WAITING_MIN | WAITING_MAX | RUNNING_MIN | RUNNING_MAX | FINISHING_MIN | FINISHING_MAX       
：------ | ：------------------ | ：------------------ | ：------------------ | ：------------------ | ：------------------ | ：------------------ 
job_2 | 2020-01-28 11:52:00 | 2020-01-28 11:56:00 | 2020-01-28 11:57:00 | 2020-01-28 12:00:00 | 2020-01-28 12:01:00 | 2020-01-28 12:04:00 
job_1 | 2020-01-28 11:51:00 | 2020-01-28 11:53:00 | 2020-01-28 11:54:00 | 2020-01-28 11:57:00 | 2020-01-28 11:58:00 | 2020-01-28 11:59:00