SET TERM ^ ;

ALTER TRIGGER USER_ON ACTIVE

ON CONNECT POSITION 0

AS 

  declare variable m_gaz varchar(25);

BEGIN 

    select mon$remote_address from MON$ATTACHMENTS 

        where mon$attachment_id=current_connection

        into :m_gaz;

    rdb$set_context('USER_SESSION','Gazda',:m_gaz);

    rdb$set_context('USER_SESSION','Acces',0);

    rdb$set_context('USER_SESSION','ContEdt',0);

    rdb$set_context('USER_SESSION','Import',0);

    insert into USER_MSG (id_con,usser,roll,data_con,comm)

        values (current_connection,current_user,current_role,current_timestamp,'');

END^

SET TERM ; ^

sorry for my englesh  :(