Hi, 2012/10/4 Reindl Harald <h.rei...@thelounge.net>
> > > Am 04.10.2012 17:28, schrieb Aastha: > > I want to find the last time the given list of users logged in. > > Is there any mysql table from where i can retrieve the data or any > > specific sql > > no - because this would mean a WRITE QUERY in the mysql-database > for every connection - having a web-application with hundrets > of calls per second would kill the performance > > No because MySQL does not have this facility. (<5.6) Saying that a feature is not present because the hypothetical implementation would impact performance doesn't make much sense in my opinion. > this makes pretty no sense and is NOT the job of a RDBMS > implement it in your application / db-abstraction-layer > I can suggest a reading here: http://www.amazon.com/Implementing-Database-Security-Auditing-Examples/dp/1555583342 Regards -- Claudio
