I am using Delphi 2, SQL Link 3.5, MS SQL Serve 6.5.

 I found There are many connections created by TTable. of course, It's
ok
  when I use TQuery. But due to my EXISTING Library with Sybase. I DON'T
have
  time to rewrite my library,  as well as applications. Moreover, There
are
  MANY useful method, property for building Database applications. such
as
  Indexfields, mastersource, and, TTable can allow me to create a
cross-databases
  applications since I don't have to write NATIVE SQL statement.

  I tried to replace all ttables by tqueries but I found an another
problems
  Suppose Form1 has some components :
  query1 - select * from <any tables in my Server>
  datasouce1 - is linked by query1 of coz.
  dbgrid1 - is linked by datasource.
  then, F9 - run it.
  Press Insert - a blank row appears.
  type anything - include the keys' value of coz.
  press uparrow or downarrow - post it.

  after then, I found some row missing......

  If I use DBDEMOS - Local Dbase or Paradox DB files,
  It's prefectly ok....

  so, What can I do ?
  Pls help me

  Thanks in advance,