Re: Get Unix timestamp from SQL timestamp through libpq

Give a try to:

man 2 time
man 3 ctime

2010/1/11 Yan Cheng Cheok <yccheok(at)yahoo(dot)com>:
> I know I can convert SQL timestamp to unix timestamp, using the following way.
>
> SELECT extract(epoch FROM now());
>
> Now, I have a stored procedure function, which will directly return a table row to the caller. One of the row field is "timestamp" type.
>
> In my application, I am using libpq. I wish to use libpq functions (or any c/c++ function), to convert "2010-01-11 13:10:55.283" into unix timestamp. Off course, I can create another stored procedure named
>
> SQLTimestamp2UnixTimestamp
> SELECT extract(epoch FROM $1);
>
> But I just wish to accomplish this task with a single c/c++ function call, without involving stored procedure.
>
> Any suggestion? Thanks!
>
> Thanks and Regards
> Yan Cheng CHEOK
>
>
>
>
>
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