set chained off

写了个store procedure ,tran mode is unchained ;exec procedure时正常
但在页面里调用时报：com.sybase.jdbc2.jdbc.SybSQLException: Stored procedure 'convertClient' may be run only in unchained transaction mode. The 'SET CHAINED OFF' command will cause the current session to use unchained transaction mode.

请问如何调试？？谢谢！！