从Java调用存储过程-ORA错误未引发异常

Question

I'm calling an Oracle Stored Procedure from Java, and have no problem sending input parameter values and getting the output parameter values back to Java once I execute the CallableStatement .

However, when i send some bad data into the Stored Procedure (to force an error) and execute the CallableStatement 's execute method, I'd expect a SQLException to be thrown in my method. This doesn't happen, and the code continues as normal.

When I run the Stored Procedure through SQL Developer, i can clearly see an oracle error message (code ORA-06502 ) displayed in the Log window. So it's a mystery to me why my Java code isn't catching any error message.

Does anyone have an idea what the source of this behaviour is? Is the Stored Procedure not throwing the error correctly; is the Java try/catch not recognizing the exception thrown? Unfortunately i have no access to the Stored Proc code to check how they're handling errors.

Any pointers are appreciated.

Answer 1

Java doesn't throw SQLException because the call stored procedure Java function (CallableStatement) has successfully sent the command to Oracle. If this procedure is executed with success, the methode of CallableStatement give us 0, otherwise different of 0, so you don't see SQLException.

But in case of SQLDevelopper, It's a true interpreter SQL for Oracle, so you can see the SQLException.

Answer 2

Exception is thrown only when your first executable statement fails in stored procedure. If at lest one statement executes correctly except the first one exception won't be thrown.

You can try putting transaction in stored procedure itself and catch exception if any statement fails and throw an exception from catch block. All of this in stored procedure.