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Asked: 2026-06-05T13:10:32+00:00

I am trying to get the time difference between 2 users, I need the

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I am trying to get the time difference between 2 users, I need the difference in hours.

I tried to use DATEDIFF function but it’s wrong.

Here is my code:

SELECT DATEDIFF(*,  
(SELECT max(u1.time_c)
FROM users u)
,
(SELECT max(u2.time_c)
FROM users u2)
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1 Answer

  1. Editorial Team

    You must have a from clause in your select statement.
    Something like 

    Select date1 - date2 from dual

    returns number of days between date1 and date2.

    If you want number of hours:

    Select (date1 - date2)*24 from dual;

    (this is only for oracle)

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