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Pl Sql Error Stack Trace
But, if the need arises, you can use a locator variable to track statement execution, as follows:DECLARE stmt INTEGER := 1; -- designates 1st SELECT statementBEGIN SELECT ... Also introduced in Oracle7, the DBMS_UTILITY.FORMAT_ERROR_STACK built-in function, like SQLERRM, returns the message associated with the current error (the value returned by SQLCODE). CREATE OR REPLACE PROCEDURE display_error_stack AS BEGIN DBMS_OUTPUT.put_line('***** Error Stack Start *****'); DBMS_OUTPUT.put_line(DBMS_UTILITY.format_error_stack); DBMS_OUTPUT.put_line('***** Error Stack End *****'); END; / -- Test package to show a nested call. However, until Oracle 10g, it has not been possible for developers to intervene in the exception in any way whilst retaining this information (for example to record the exception and its click site
Linked 1 Stored procedures with triggers oracle 11g 0 pl sql exception message 0 PL SQL handling exeception(get the query) Related 107C++ display stack trace on exception139How do I find the One workaround is to keep track of statement numbers that were last executed before any error occurred: DECLARE v_statement_no := 0; BEGIN v_statement_no := 1; SELECT ... The Oracle "insert into errors" feature is not good for much of anything, so what most people do is build a custom logging subsystem. Thanks. http://stackoverflow.com/questions/7032373/oracle-pl-sql-how-to-get-the-stack-trace-package-name-and-procedure-name
How To Find Which Line Error Was Raised In Oracle
CREATE OR REPLACE PROCEDURE display_error_stack AS l_depth PLS_INTEGER; BEGIN l_depth := UTL_CALL_STACK.error_depth; DBMS_OUTPUT.put_line('***** Error Stack Start *****'); DBMS_OUTPUT.put_line('Depth Error Error'); DBMS_OUTPUT.put_line('. l_depth LOOP DBMS_OUTPUT.put_line( RPAD(i, 10) || RPAD(TO_CHAR(UTL_CALL_STACK.backtrace_line(i),'99'), 10) || UTL_CALL_STACK.backtrace_unit(i) ); END LOOP; DBMS_OUTPUT.put_line('***** Backtrace End *****'); END; / -- Run the test. Story about crystal flowers that stop time? Send us your comments Popular Downloads Untitled Document Berkeley DB Enterprise Manager Database EE and XE Developer VMs Enterprise Pack for Eclipse Java JDeveloper and ADF Oracle Linux and Oracle VM
The UTL_CALL_STACK package contains APIs to display the contents of the error stack. I have placed all of this code into a separate initialization procedure in Listing 5. CREATE OR REPLACE PACKAGE BODY plch_pkg IS PROCEDURE proc1 IS PROCEDURE nested_in_proc1 IS BEGIN DBMS_OUTPUT.put_line (DBMS_UTILITY.format_call_stack); END; BEGIN nested_in_proc1; END; END plch_pkg; / b. Utl_call_stack SQL> create or replace procedure p2 2 as 3 begin 4 null; 5 p1; 6 end; 7 / Procedure created.
This article explores the problem that this function solves and how best to use it. Pl Sql Call Stack Steven Feuerstein ([email protected]) is an authority on the PL/SQL language. Code Listing 1: Demonstration of the DBMS_UTILITY.FORMAT_CALL_STACK function SQL> CREATE OR REPLACE PROCEDURE proc1 2 IS 3 BEGIN 4 DBMS_OUTPUT.put_line (DBMS_UTILITY.format_call_stack); 5 END; 6 / SQL> CREATE OR REPLACE PACKAGE pkg1 http://www.oracle.com/technetwork/issue-archive/2014/14-jan/o14plsql-2045346.html This however may not be complete if you have several levels of PL/SQL packages, procedures or functions built on top of each other.
Would you believe that before Oracle 10g there was no normal way to get the trace? Dbms_utility Backtrace stmt := 2; -- designates 2nd SELECT statement SELECT ...EXCEPTION WHEN NO_DATA_FOUND THEN INSERT INTO errors VALUES ('Error in statement ' || stmt);END;----- WTF EXCERPT END -----Yes, they even have a Call Stack Error Stack Backtrace Call Stack The call stack allows you to identify exactly where you are in the currently running code, which includes information about nesting of subprogram calls. it would be useful to get the current procedure name at the moment the Exception happened or is catched.
Pl Sql Call Stack
The following example recreates the DISPLAY_ERROR_STACK procedure to use the UTL_CALL_STACK package, then re-runs the test. -- Procedure to display the call stack. https://blog.jooq.org/2014/08/29/plsql-backtraces-for-debugging/ Some time ago I thought that PHP was the worst, but well, things change. How To Find Which Line Error Was Raised In Oracle We therefore need to include a call to SQLERRM. Oracle Call Stack Trace October 7, 2016 Why You Should Design Your Database to Optimise forStatistics October 5, 2016 When to Choose SQL and When to ChooseNoSQL September 28, 2016 A Hidden jOOQ Gem: Foreach
Lexical unit information is not exposed through UTL_CALL_STACK. I then use the format_call_stack_12c procedure (in Listing 2) in the pkg.do_stuff procedure and execute that procedure, as shown in Listing 3. SET SERVEROUTPUT ON EXEC test_pkg.proc_1; ***** Call Stack Start ***** ----- PL/SQL Call Stack ----- object line object handle number name 0xb6d4ac18 4 procedure TEST.DISPLAY_CALL_STACK 0xb6d14298 15 package body TEST.TEST_PKG 0xb6d14298 Why did they bring C3PO to Jabba's palace and other dangerous missions? Format_error_stack Vs Format_error_backtrace
Note: only a member of this blog may post a comment. Each stack contains depths (locations), and you can ask for the information at a certain depth in each of the three types of stacks made available through the package. Answer to Previous Challenge The PL/SQL Challenge question in last issue’s “SQL in PL/SQL Enhancements” article focused on enhancements for executing SQL from PL/SQL in Oracle Database 12c. navigate to this website The following example shows the backtrace in reverse order. -- Procedure to display the call stack.
Backtrace to the Rescue In Oracle Database 10g, Oracle added DBMS_UTILITY.FORMAT_ERROR_BACKTRACE , which can and should be called in your exception handler. Dbms_utility.format_error_backtrace 11g The error stack allows you to display chains of errors, making it easier to determine the real cause of the issue. ones that contain links to web development services) will be reported along with user profiles!
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WHEN bar THEN ... I will continue to use my_putline , since the backtrace could be very long if the call stack is deep (and your program names are long). Depth Number --------- --------- --------- --------- --------- -------------------- 1 0 13 TEST DISPLAY_CALL_STACK 2 1 15 TEST TEST_PKG.PROC_3 3 1 10 TEST TEST_PKG.PROC_2 4 1 5 TEST TEST_PKG.PROC_1 5 0 1 What Are The Methods There In Save Exceptions In Oracle A major caveat to this is, of course, that if we go back to procedure WILL_ERROR and re-raise the exception in a WHEN OTHERS or such-like, we will once again lose
Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the EXEC plch_pkg.proc1 a. Why do jet engines smoke? You can find the session(s) executing the specific SQL in DBA_HIST_ACTIVE_SESS_HISTORY view based on the sql_id.
Code Listing 6: Executable section of the bt.info function BEGIN initialize_values; retval.program_owner := SUBSTR (backtrace_in , l_name_start_loc + 1 , l_dot_loc - l_name_start_loc - 1 ); retval.program_name := SUBSTR (backtrace_in, l_dot_loc CREATE OR REPLACE PROCEDURE display_error_stack AS l_depth PLS_INTEGER; BEGIN l_depth := UTL_CALL_STACK.error_depth; DBMS_OUTPUT.put_line('***** Error Stack Start *****'); DBMS_OUTPUT.put_line('Depth Error Error'); DBMS_OUTPUT.put_line('. I've been searching for the source of a weird CLOB related bug in a big pile of PL/SQL sh.. Better Diagnostics, Better Programming The three DBMS_UTILITY functions (DBMS_UTILITY.FORMAT_CALL_STACK, DBMS_UTILITY.FORMAT_ERROR_STACK, and DBMS_UTILITY.FORMAT_ERROR_ BACKTRACE) have been crucial aids in diagnosing and resolving problems in PL/SQL code.