How to get the timestamp of last record change?
Such mechanism does not exists in Firebird, so you need to build your own. Add a timestamp column to your table, and create BEFORE INSERT OR UPDATE trigger to write a new value to it. Example:
ALTER TABLE employee ADD last_change timestamp;
SET TERM ^ ;
CREATE TRIGGER EMPLOYEE_BIU0 FOR EMPLOYEE
ACTIVE BEFORE INSERT OR UPDATE POSITION 0
new.last_change = current_timestamp;
SET TERM ; ^
That's all. If you wonder what are those SET TERM statements, there is a FAQ about it.
Do you find this FAQ incorrect or incomplete? Please e-mail
needs to be changed. To ensure quality, each change is checked by our editors (and often tested on live Firebird
databases), before it enters the main FAQ database. If you desire so, the
changes will be credited to your name. To learn more, visit our add content
If you are a commercial tool maker and your tool features a great way to handle
the issue written about in this FAQ, please check out our advertisement
All contents are copyright © 2007-2017 FirebirdFAQ.org unless otherwise stated in the text.