[nhibernate-issues] [NHJIRA] Created: (NH-2526) Sybase ASE 15 support

[Jim H. J. (JIRA) <nh...@gm...>]

Sybase ASE 15 support
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                 Key: NH-2526
                 URL: http://216.121.112.228/browse/NH-2526
             Project:  NHibernate
          Issue Type: Improvement
          Components: DataProviders / Dialects
    Affects Versions: 3.0.0.GA
            Reporter: Jim Hale Jr.
            Priority: Major
         Attachments: SybaseAdoNet2ClientDriver.cs, SybaseAse15Dialect.cs

The 3.0.0 release banished Sybase ASE users for reasons unknown to me.  I understand the criticism of the 2.x and 3.0.0 release candidate implementations of the Sybase ASE dialect (yes they were bad), but at least they let ASE users use NHibernate.  Better to have basic but functional support than no support at all.  This is especially important for ASE users considering the lack of Entity support by Sybase for ASE.  Removing ASE support forced NHibernate users to stay with the 2.12 release or pay for an Entity aware provider.  The comments I read regarding the removal of ASE support - specifically regarding the merging of the ASE and ASA dialects - also make no sense to me.  ASA and ASE are two different products with different keywords, SQL syntax, functions, and drivers.  Their dialects cannot be merged!  Same with the supposed support from the MS SQL 2000 dialect - this dialect uses MS keywords like 'TOP' that ASE does not support.

Attached is a port of the Sybase ASE Dialect from the Java Hibernate project along with support for the ADO.NET driver provided by Sybase.  I am using it in a project currently and it at least appears to work.  I am only using the most basic of NHibernate features though so additional testing would be nice.  But it provides a start.

Tested against Sybase 15.0.3.0 using .NET 4.0 runtime and Sybase.AdoNet2.AseClient.dll driver (version 1.15.305.0).





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