On 04/19/2013 05:59 PM, Graeme Geldenhuys wrote: > Hi, > > I have a Firebird database living on a FreeBSD server. I did not specify > a charset when the database was created. > > I have a table with a string field defined as VarChar(10). > > When I use SqlDB and retrieve the Size of that field via... > > FDataset.FieldDefs[AIndex].Size > > SqlDB returns 10, which is correct. > > But when that exact same code above is run via Zeos, it returns 40. > > Anybody know why? > > I'm using Zeos from the SubVersion repository: > > http://svn.code.sf.net/p/zeoslib/code-0/trunk > Revision: 2209 > > > The same result is returned using Zeos and a MySQL 5.5 database, where > the field was also created as VarChar(10). > > > Regards, > - Graeme - >
TFieldDef.Size is expressed in bytes. Zeos, IIRC, assumes a conversion from any charset to utf8 could be made. Since UTF8 is up to 4 bytes per char, a VarChar(10) can need up to 40 bytes to be represented in the dataset. Don't forget that the translation to utf8 can happen in fe. the client library (libmysql, fbclient,...). Ludo _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
