>I noticed that it is a waste of time to read messages that are replies to Sergey B. 99% of the time these are "Thank you, it works now."
One answer for Sergey is almost everything you need to know :-))))))))
Did you see any other answers after Sergey's ones? :-)
Rarely I saw one or two, but they are becuase the people who answer didn't knew Sergey is already there.
Against Stupidity the Gods themselves Contend in Vain - Johann Christoph Friedrich von Schiller
The only thing normal about database guys is their tables.