Subject Re: [firebird-support] Steps to Set Wait/No Wait Transaction
Author Vishal Tiwari
I am using TIBSQL, TIBDatabase and TIBTransaction components. This code is not fitting there.

Would you please provide me Firebird Tools Group mail ID?


On Friday, 13 January 2017 11:15 AM, "Maya Opperman maya@... [firebird-support]" <firebird-support@yahoogroups.com> wrote:


 
Hi Vishal,
 
>I need to understand how to set Wait/No Wait Transaction in firebird.
I think you mean in Delphi? Might be better to ask on the Firebird tools group, but I have replied below
 
>Also I have one doubt that I when we start transaction through code as shown below,
the transaction locks particular rows in the table or it locks entire table?
I think you will be fine as long as you use generator to get your ID’s if you use auto-incremented numeric primary keys.
 
Delphi code snippet for FIBPlus would be:
 
sqlMain.Transaction.TPBMode := tpbDefault;
sqlMain.Transaction.TRParams.Clear;
                sqlMain.Transaction.TRParams.Add('read_committed');
sqlMain.Transaction.TRParams.Add('rec_version');
sqlMain.Transaction.TRParams.Params.Add('nowait');
//try
sqlMain.Transaction.StartTransaction;
try
 
    //Have Insert SQL Execution here
 
    sqlMain.Transaction.Commit;
except on E: Exception do
  begin
      sqlMain.Transaction.Rollback;
      raise;
  end;
end;
 
FireDac would  be quite similar.
 
Cheers
Maya