Question

我有下表

Emp_ID   Emp_Name    Insert_Time
001      AAA         12:00
002      BBB         12:00
002      BBB         12:00
003      CCC         12:00
004      DDD         12:00
004      DDD         12:00

现在，我想增加表本身中重复记录的Insert_Time并显示所有记录。

Emp_ID   Emp_Name    Insert_Time
001      AAA         12:00
002      BBB         12:01
002      BBB         12:02
003      CCC         12:00
004      DDD         12:01
004      DDD         12:02

如何执行此操作？。

Answer 1

CREATE TABLE #Table111
    ([Emp_ID] int, [Emp_Name] varchar(3), [Insert_Time] varchar(5))
;

INSERT INTO #Table111
    ([Emp_ID], [Emp_Name], [Insert_Time])
VALUES
    (001, 'AAA', '12:00'),
    (002, 'BBB', '12:00'),
    (002, 'BBB', '12:00'),
    (003, 'CCC', '12:00'),
    (004, 'DDD', '12:00'),
    (004, 'DDD', '12:00')
;
select * from #Table111

WITH CTE AS
(
SELECT *,ROW_NUMBER() OVER (PARTITION BY [EMP_NAME],[EMP_ID] ORDER BY [EMP_ID]) AS RN FROM #TABLE111
)
UPDATE CTE
SET [INSERT_TIME]=   STUFF([INSERT_TIME],4,5,RN)

输出

EMP_ID  EMP_NAME    INSERT_TIME
1          AAA        12:1
2          BBB        12:1
2          BBB        12:2
3          CCC        12:1
4          DDD        12:1
4          DDD        12:2

Answer 2

您可以同时使用use count和row_number函数以获得所需的结果：

with tab(Emp_ID, Emp_Name, Insert_Time) as
(
 select '001','AAA','12:00' from dual union all
 select '002','BBB','12:00' from dual union all
 select '002','BBB','12:00' from dual union all
 select '003','CCC','12:00' from dual union all
 select '004','DDD','12:00' from dual union all
 select '004','DDD','12:00' from dual    
)

select Emp_ID, Emp_Name, 
       to_char(to_date(Insert_Time,'hh24:mi') +rn/24/60,'hh24:mi') as Insert_Time
  from
(
  select Emp_ID, Emp_Name, Insert_Time,
         count(1) over (partition by Emp_ID order by Emp_ID) cnt,
         row_number() over (partition by Emp_ID order by Emp_ID) rn  
    from tab t 
)
where cnt > 1;

EMP_ID  EMP_NAME    INSERT_TIME
 002      BBB         12:01
 002      BBB         12:02
 004      DDD         12:01
 004      DDD         12:02

要根据您的评论更新记录，请使用：

update tab t
   set t.insert_time= (
              select to_char(to_date(Insert_Time,'hh24:mi') +rn/24/60,'hh24:mi') as Insert_Time
                from
              (
                select Emp_ID, Emp_Name, Insert_Time,
                       count(1) over (partition by Emp_ID order by Emp_ID) cnt,
                       row_number() over (partition by Emp_ID order by Emp_ID) rn  
                  from tab t 
              ) q
              where cnt > 1
                and t.Emp_ID = q.Emp_ID
                and t.Emp_Name = q.Emp_Name
                and t.rowid = q.rowid
         );

获取：

   select * from tab;

   EMP_ID   EMP_NAME    INSERT_TIME
     001      AAA    
     002      BBB          12:01
     002      BBB          12:02
     003      CCC   
     004      DDD          12:01
     004      DDD          12:02

Answer 3

假设您有一个如下表：

create table yourTable(Emp_ID, Emp_Name, Insert_Time) as (
    select '001', 'AAA', to_date('01/01/0001 12:00', 'dd/mm/yyyy hh24:mi') from dual union all
    select '002', 'BBB', to_date('01/01/0001 12:00', 'dd/mm/yyyy hh24:mi') from dual union all
    select '002', 'BBB', to_date('01/01/0001 12:00', 'dd/mm/yyyy hh24:mi') from dual union all
    select '003', 'CCC', to_date('01/01/0001 12:00', 'dd/mm/yyyy hh24:mi') from dual union all
    select '004', 'DDD', to_date('01/01/0001 12:00', 'dd/mm/yyyy hh24:mi') from dual union all
    select '004', 'DDD', to_date('01/01/0001 12:00', 'dd/mm/yyyy hh24:mi') from dual
)

您可以使用：

select Emp_ID, Emp_Name,
       Insert_Time +
       row_number() over (partition by Emp_ID, Emp_Name order by 1) -- the row number
        * ( count(*) over (partition by Emp_ID, Emp_Name ) -1 )     -- to decide whether to add a minute or not
             / 24 / 60                                              -- to get minutes
          as Insert_Time
from yourTable

结果：

001 AAA 01/01/0001 12:00:00
002 BBB 01/01/0001 12:01:00
002 BBB 01/01/0001 12:02:00
003 CCC 01/01/0001 12:00:00
004 DDD 01/01/0001 12:01:00
004 DDD 01/01/0001 12:02:00

要更新表格，您可以使用MERGE：

merge into yourTable T
using (
        select rowid, Emp_ID, Emp_Name,
               Insert_Time +
               row_number() over (partition by Emp_ID, Emp_Name order by 1) -- the row number
                * ( count(*) over (partition by Emp_ID, Emp_Name ) -1 )     -- to decide wheter to add a minute or not
                     / 24 / 60 as Insert_Time
        from yourTable          
      ) X 
on (t.rowid = x.rowid)
when matched then
    update set t.Insert_Time = x.Insert_Time

基于单个成员ID的Oracle SQL中的更新表

3 个答案: