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Messages 1 to 6 of 6 total |
DBISAM ODBC and NHibernate |
Wed, Oct 10 2007 11:27 PM | Permanent Link |
Grant Stone | Does anyone have any experience in using the DBISAM ODBC driver with NHibernate?
I'm having no problem reading data, but cannot get inserts or updates to work. This is a legacy database with autogenerated keys, and NHibernate seems to be creating SQL that DBISAM doesn't like. I think the problem could be configuration related - I'm using the dialect NHibernate.Dialect.GenericDialect. The SQL generated by NHibernate is: UPDATE Event SET NUM = ?, EventId = ?, EventDate = ?, EventValue = ?, IsEventTimed = ? WHERE EventId = ?; p0 = '64', p1 = '6074', p2 = '27/09/2007 12:00:00 a.m.', p3 = '', p4 = 'True', p5 = '6' The error I'm getting is: {"ERROR [42000] [Elevate Software][DBISAM] DBISAM Engine Error # 11949 SQL parsing error - Expected NULL, FixedChar, GUID, String, Memo, or BLOB expression but instead found ? in UPDATE SQL statement at line 1, column 40"} So obviously it's the way those parameters are being set that's the problem. Is there anyone out there who has DBISAM working with NHibernate who could help? Thanks Grant |
Thu, Oct 11 2007 12:59 PM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | Grant,
<< Does anyone have any experience in using the DBISAM ODBC driver with NHibernate? I'm having no problem reading data, but cannot get inserts or updates to work. This is a legacy database with autogenerated keys, and NHibernate seems to be creating SQL that DBISAM doesn't like. I think the problem could be configuration related - I'm using the dialect NHibernate.Dialect.GenericDialect. >> What are the other Dialect options ? I see a couple of issues with the SQL generated, primarily the date format is incorrect. I suspect that there is an issue with the way that the parameters are being specified also. -- Tim Young Elevate Software www.elevatesoft.com |
Tue, Oct 16 2007 2:56 AM | Permanent Link |
Grant Stone | Tim,
Besides the generic dialect, these are also supported. RDBMS Dialect DB2 NHibernate.Dialect.DB2Dialect PostgreSQL NHibernate.Dialect.PostgreSQLDialect MySQL NHibernate.Dialect.MySQLDialect Oracle (any version) NHibernate.Dialect.OracleDialect Oracle 9/10g NHibernate.Dialect.Oracle9Dialect Sybase NHibernate.Dialect.SybaseDialect Microsoft SQL Server 2000 NHibernate.Dialect.MsSql2000Dialect Microsoft SQL Server 7 NHibernate.Dialect.MsSql7Dialect Firebird NHibernate.Dialect.FirebirdDialect SQLite NHibernate.Dialect.SQLiteDialect |
Tue, Oct 16 2007 2:28 PM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | Grant,
<< Besides the generic dialect, these are also supported. >> Hmmm, none of those will be any better. Do you happen to know if the dialects are user-extensible or not ? -- Tim Young Elevate Software www.elevatesoft.com |
Wed, Oct 17 2007 5:41 AM | Permanent Link |
Grant Stone | They are user-extensible. I might have a look at writing one when I'm back at work next week.
Grant |
Thu, Oct 18 2007 2:08 PM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | Grant,
<< They are user-extensible. I might have a look at writing one when I'm back at work next week. >> They really need one for stock-standard SQL 2003 that includes proper date and time formatting. I'm no Java programmer, but if you need help with this please let me know and I'll give you any information that you need. -- Tim Young Elevate Software www.elevatesoft.com |
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