SQL查询存储为键值对的日期

Question

I have table with following structure

  **JobData**  - Table
---------------------------
    id   - Number    
    key   - Varchar
    value - Varchar



        Data:
    -----------------
    ID            value                key  
-----------------------------------------------   
    21212   2010-06-11T15:00:00      Job_End
    21213   2008-12-01T23:59:00     Job_Start
    21214   2008-12-01T23:59:00     Job_Start
    21215   2018-06-11T15:00:00     Job_End
    21216   2015-06-11T15:00:00     Job_End

If I want to retrieve records between two dates between 2000-06-01T:00:00, 2010-06-11T15:00:00, written the query as below.

SELECT * FROM  JobData jd
WHERE 
jd.key IN ('Job_Start', 'Job_End')
AND (jd.key = 'Job_Start' and jd.value BETWEEN '2000-06-01T:00:00' AND '2010-06-11T15:00:00')
AND (jd.key = 'Job_End' and jd.value BETWEEN '2000-06-01T:00:00' AND '2010-06-11T15:00:00')

But I am getting 0 records , please someone let me know where I am missing.

Note: database is ORACLE

Thanks.

Answer 1

Of course it's not going to work, because you're asking for a value to be both Job_Start and Job_End at the same time. If you really want to return all records between 2000-06-01T:00:00 and 2010-06-11T15:00:00 , then this should be correct:

SELECT *
FROM JobData jd
WHERE jd.key IN ('Job_Start', 'Job_End')
  AND jd.value BETWEEN '2000-06-01T00:00:00' AND '2010-06-11T15:00:00'

Answer 2

Your query is incorrect.

SELECT * FROM  JobData jd
WHERE 
jd.key IN ('Job_Start', 'Job_End')
AND (jd.key = 'Job_Start' and jd.value BETWEEN '2000-06-01T:00:00' AND '2010-06-11T15:00:00')
AND (jd.key = 'Job_End' and jd.value BETWEEN '2000-06-01T:00:00' AND '2010-06-11T15:00:00')

You should change it to

SELECT * FROM  JobData jd
WHERE 
jd.key IN ('Job_Start', 'Job_End')
AND (TO_DATE(jd.value,'YYYY-MM-DDTHH24:MI:SS') BETWEEN TO_DATE('2000-06-01T00:00:00', 'YYYY-MM-DDTHH24:MI:SS') AND TO_DATE('2010-06-11T15:00:00', 'YYYY-MM-DDTHH24:MI:SS'))