Subject Timestamp operations in stored procedure
Author Marek Konitz
Hello,

Does somebody know how to substract one timestamp from the other in a
stored procedure?

We have variables:
TIME_DIFF timestamp;
TIME_START timestamp;
TIME_STOP timestamp;

and I would like to evaluate TIME_DIFF:

TIME_START - not null value;
TIME_STOP = 'now';
TIME_DIFF = TIME_STOP-TIME_START;

but such operation results an error:

Error Message:
----------------------------------------
Overflow occurred during data type conversion.
conversion error from string "0.072731481".

I know, that I'm suggested by Borland's TDateTime operations. I fact I
thought TDateTime and TIMESTAMP types are very similar in physical
structure.

Regards,

Marek Konitz