Thank you Zoran !
Now it works perfect when I work with my Lazarus Application.
You are welcome.
Now it is impossible to insert data using IBExpert, but this is not so bad ....
Thank you again !!!!
Oh, no, no, let's not just leave it so, why would it be impossible to insert data using IBExpert?
First, your db can still be in CP1251, as I said, the server knows what the db encoding is, we just needed to tell the server what the client encoding is.
However, if you already converted the db data to utf8, even better. Then in IBExpert you should do this: when the database is disconected, right-click on its node on the left, okey? Then open "Database registration info..." In the dialog, find "Charset" combo box and set it to utf8 (see attached image).