Sybase database Transaction mode: chained and unchained

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Support for Sybase database Transaction modes in JDBC Adapter
https://www.ibm.com/developerworks/community/blogs/websphere_adapters/entry/jdbc_adapter_supported_transaction_modes_in_sybase?lang=en

points:
JDBC's transactional support requires Connection.setAutoCommit(false) to be set, which forces Sybase into Chained mode. However, nearly all existing stored procedures are written exclusively for Unchained mode.

The JDBC Adapter uses the chained mode by default. Adapter provides a configurable property "Set Auto Commit on Database Connection" that should switch to unchained mode when the property is set to true.


Choosing a transaction mode
http://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.infocenter.dc32300.1570/html/sqlug/X82816.htm

Transaction modes and stored procedures
http://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.infocenter.dc32300.1570/html/sqlug/X82816.htm

Displays or changes the execution modes associated with stored procedures.
use System procedure sp_procxmode
http://infocenter.sybase.com/archive/index.jsp?topic=/com.sybase.help.ase_15.0.sprocs/html/sprocs/sprocs180.htm