[libreoffice-users] Calculating the difference between two time values by means of SQL

Markus Elfring <Markus.Elfring -AT- web.de>
Thu, 4 Mar 2021 15:01:41 +0100

Hello,

Two columns of a table (for the database engine “HyperSQL” within the application
“LibreOffice Base 7.1.0.3-985.1”) have got the data type “TIME”.
I would like to compute a difference for these fields.

It seems that the following SQL statement is insufficient so far.

SELECT ID, t1, t2, t2 - t1 AS duration FROM time_measurements1


I would appreciate your advices.

Would you like to point further information sources out besides query examples
which work with dates and time stamps?

Regards,
Markus

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Context

[libreoffice-users] Calculating the difference between two time values by means of SQL · Markus Elfring
- Re: [libreoffice-users] Calculating the difference between two time values by means of SQL · Drew Jensen
- Re: [libreoffice-users] Calculating the difference between two time values by means of SQL · Robert Großkopf
  - Re: [libreoffice-users] Calculating the difference between two time values by means of SQL · Markus Elfring

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