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Editorial Team
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Asked: 2026-06-06T22:36:56+00:00

I am using SQL Developer to debug code like below, the output result will

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I am using SQL Developer to debug code like below, the output result will be shown on debug dialog ONLY after I finish all stored procedure. Do I need to turn on some configurations ?

Thanks

 FOR j IN REVERSE 1..i LOOP
     DBMS_OUTPUT.PUT_LINE(emp_tab(j).first_name);
  END LOOP;

log

Connecting to the database hr.
Executing PL/SQL: ALTER SESSION SET PLSQL_DEBUG=TRUE
Executing PL/SQL: CALL DBMS_DEBUG_JDWP.CONNECT_TCP( '192.168.1.4', '53475' )
Debugger accepted connection from database on port 53475.
Source breakpoint occurred at line 24 of EMP_LIST.pls.
Source breakpoint occurred at line 24 of EMP_LIST.pls.
Source breakpoint occurred at line 24 of EMP_LIST.pls.
Source breakpoint occurred at line 24 of EMP_LIST.pls.
Source breakpoint occurred at line 24 of EMP_LIST.pls.
Source breakpoint occurred at line 24 of EMP_LIST.pls.
Executing PL/SQL: CALL DBMS_DEBUG_JDWP.DISCONNECT()
Shelli
Hermann
David
Mozhe
Sundar
Ellen
Process exited.
Disconnecting from the database hr.
Debugger disconnected from database.
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1 Answer

  1. Editorial Team

    If you are using DBMS_OUTPUT to debug, you won’t see any output until the process completes. That’s the way DBMS_OUTPUT works.

    It appears you are successfully using the SQL Developer debugger, however, which is a much more effective way of debugging a stored procedure. You are apparently setting breakpoints so you can examine the values of variables at those breakpoints. There is no need to print the values.

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