BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Performance problem          BorlandTalk.com Forum Index -> C++ Builder Databases (SQL Servers) View previous topic :: View next topic   Author Message RV Guest Posted: Sat Jul 08, 2006 2:00 am    Post subject: Performance problem I'm using BCB3 and I want to migrate paradox-tables to MS SQL Server 2000. I created an ODBC-alias as link to the SQL Server. I use the components TDatabase, TDataset, TTable from BCB3. I display all rows of a table (20000 records) in a TDBGrid. The performance of this process is optimal. However, when I try to insert 20000 records (or update if the record exists) the performance is very low. I guess the function GotoKey() slows the process. This is the code I use: tbTable->SetKey(); tbTable->FieldByName( "Pkey" )->AsString = loPkey; if( tbTable->GotoKey() ) { tbTable->Edit(); } else { tbTable->Insert(); } I already used FindKey(), Locate() or a SQL Query (via TQuery) as an alternative. But without result. Someone got any ideas? Kind Regards Back to top Pedro Fehlauer Guest Posted: Thu Jul 13, 2006 9:36 pm    Post subject: Re: Performance problem Sure there is a problem! You shouldn't use TTable to acces SQL servers! The performance is terrible. I would suggest you to use directly the INSER INTO SQL statement. What do you want to insert? Pedro "RV" <roosje.vuylsteke (AT) skynet (DOT) be> escribió en el mensaje news:44aecb6f$1 (AT) newsgroups (DOT) borland.com... Quote: I'm using BCB3 and I want to migrate paradox-tables to MS SQL Server 2000. I created an ODBC-alias as link to the SQL Server. I use the components TDatabase, TDataset, TTable from BCB3. I display all rows of a table (20000 records) in a TDBGrid. The performance of this process is optimal. However, when I try to insert 20000 records (or update if the record exists) the performance is very low. I guess the function GotoKey() slows the process. This is the code I use: tbTable->SetKey(); tbTable->FieldByName( "Pkey" )->AsString = loPkey; if( tbTable->GotoKey() ) { tbTable->Edit(); } else { tbTable->Insert(); } I already used FindKey(), Locate() or a SQL Query (via TQuery) as an alternative. But without result. Someone got any ideas? Kind Regards Back to top RV Guest Posted: Sun Jul 16, 2006 10:11 pm    Post subject: Re: Performance problem I want to insert/update customer information (addresses, emails, birthdates,...). When I use the INSERT-statement, how can I test if a customer already exists? With the SELECT-statement before every INSERT or UPDATE, the performance is also terrible... Kind Regards, Roosje "Pedro Fehlauer" <info@sistemas-especificos.com> wrote in message news:44b67695$1 (AT) newsgroups (DOT) borland.com... Quote: Sure there is a problem! You shouldn't use TTable to acces SQL servers! The performance is terrible. I would suggest you to use directly the INSER INTO SQL statement. What do you want to insert? Pedro "RV" <roosje.vuylsteke (AT) skynet (DOT) be> escribió en el mensaje news:44aecb6f$1 (AT) newsgroups (DOT) borland.com... I'm using BCB3 and I want to migrate paradox-tables to MS SQL Server 2000. I created an ODBC-alias as link to the SQL Server. I use the components TDatabase, TDataset, TTable from BCB3. I display all rows of a table (20000 records) in a TDBGrid. The performance of this process is optimal. However, when I try to insert 20000 records (or update if the record exists) the performance is very low. I guess the function GotoKey() slows the process. This is the code I use: tbTable->SetKey(); tbTable->FieldByName( "Pkey" )->AsString = loPkey; if( tbTable->GotoKey() ) { tbTable->Edit(); } else { tbTable->Insert(); } I already used FindKey(), Locate() or a SQL Query (via TQuery) as an alternative. But without result. Someone got any ideas? 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