How to convert Milliseconds to Date in DB2?

[vinodtr]

Hi all,

I have a date which is represented by the number of milliseconds since January 01, 1970. I need to change this back to DATE format. Is there any built in function in DB2 to do the needed conversion ?

In Oracle i was able to do the conversion by the following statement.

select to_char(to_date('01/01/1970','mm/dd/yyyy'),'mm/dd/yyyy') + milliseconds/86400000) from dual;

Note: In the above sql statement, milliseconds is the no: of milliseconds of the desired date.

[bousch]

In DB2 it would be:

SELECT
  DATE(
    TIMESTAMP('1970-01-01','00.00.00')
    + (millisecondfield/1000) seconds     )
from ...
 

Hi all,

I have a date which is represented by the number of milliseconds since January 01, 1970. I need to change this back to DATE format. Is there any built in function in DB2 to do the needed conversion ?

In Oracle i was able to do the conversion by the following statement.

select to_char(to_date('01/01/1970','mm/dd/yyyy'),'mm/dd/yyyy') + milliseconds/86400000) from dual;

Note: In the above sql statement, milliseconds is the no: of milliseconds of the desired date.

[docdiesel]

Hi,

if you need a DATE value, you could calculate directly in days, too:

SELECT
  ( date('1970-01-01')  +
    (millisecondfield / 86400000) days
  ) as calculated_date
FROM
  ...

If you should try both, please let us know which one works faster.

Regards,

Bernd