Since different frameworks behave the same, this points to a JDBC issue. Other than the obvious advice to check for the latest driver from Sybase, you may also try the jTDS driver, sometimes it works better than the vendor driver:

http://jtds.sourceforge.net/

Andrus


On Jan 8, 2007, at 8:06 PM, jerome moliere wrote:

Hi all,
I'm facing a strange problem while reverse engineering with the modeller my
schema living on a sybase host
(Solaris / 12.5.4).... It must be a tricky problem because Hibernate tools
have the same problem:
both tools are unable to see primary keys !!!! or any other kind of
relations (foreign keys)..

It's strange because with a ten lines program I can list the primary keys
(same result as the sp_helpconstraint stored procedure)
greping through the code I can't find any  usage from the
DatabaseMetadata.getPrimaryKeys()? strange isn't it ?
I guess that there must a better (unknown from me) while trying to do a
reverse engineer  from a schema ?

Any pointer/remark welcome
cheers
Jerome
PS:
excuse my poor english written

--
Jerome Moliere - Mentor/J
http://romjethoughts.blogspot.com/
auteur Eyrolles

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