| Subject | Re: Error using a transaction parameter block with the OO API. |
|---|---|
| Author | |
| Post date | 2016-05-12T20:42:16Z |
---In firebird-support@yahoogroups.com, <markjford@...> wrote :
Regards,
Vlad
>> I'm using the Firebird 3.0 release version. Delphi 10.1 Berlin with the firebird.pas release file and fbclient3. I can connect to the database
> and can run queries, but I can't seem to get a custom transaction parameter block to work. Here's my code:
>
> // Transaction := attachment.startTransaction(status, 0, nil);
> tpb := Util.getXpbBuilder(status, IXpbBuilder.TPB, nil, 0);
> tpb.insertTag(status, isc_tpb_write);
> tpb.insertTag(status, isc_tpb_read_committed);
> tpb.insertTag(status, isc_tpb_nowait);
> tpb.insertTag(status, isc_tpb_rec_version);
> // This always seems to error with "invalid format for transaction parameter block"TPB must start with isc_tpb_version1 or isc_tpb_version3
> Transaction := attachment.startTransaction(status, tpb.getBufferLength(status), tpb.getBuffer(status));IIRC, by default transaction started as {isc_tpb_concurrency, isc_tpb_write, isc_tpb_wait}
>
> Has anyone gotten that to work? Any suggestions are appreciated. Also, does anyone know what the default transaction parameters
> are (e.g. if no custom tpb is used)?
Regards,
Vlad