How To Print Error Code In Pl Sql
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Functions For Error Trapping Are Contained In Which Section Of A Pl/sql Block
Advanced Oracle Cursors Oracle Exception Handling Named Programmer-Defined Exception Named System Exception WHEN OTHERS Clause SQLCODE SQLERRM
Oracle Sql Error Codes
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Oracle Raise Exception With Message
PLSQL: SQLERRM Function This Oracle tutorial explains how to use the Oracle/PLSQL SQLERRM function with syntax and examples. What does the SQLERRM Function do? The SQLERRM function returns the error message associated with the most recently raised error exception. This function should only be used within the Exception Handling section of your code. Syntax pl sql sqlcode The syntax for the SQLERRM function in Oracle/PLSQL is: SQLERRM Parameters or Arguments There are no parameters or arguments for the SQLERRM function. Note See also the SQLCODE function. Example Since EXCEPTION HANDLING is usually written with the following syntax: EXCEPTION WHEN exception_name1 THEN [statements] WHEN exception_name2 THEN [statements] WHEN exception_name_n THEN [statements] WHEN OTHERS THEN [statements] END [procedure_name]; You could use the SQLERRM function to raise an error as follows: EXCEPTION WHEN OTHERS THEN raise_application_error(-20001,'An error was encountered - '||SQLCODE||' -ERROR- '||SQLERRM); END; Or you could log the error to a table using the SQLERRM function as follows: EXCEPTION WHEN OTHERS THEN err_code := SQLCODE; err_msg := SUBSTR(SQLERRM, 1, 200); INSERT INTO audit_table (error_number, error_message) VALUES (err_code, err_msg); END; NEXT: Declare Cursor Share this page: Advertisement Back to top Home | About Us | Contact Us | Testimonials | Donate While using this site, you agree to have read and accepted our Terms of Service and Privacy Policy. W
Churchill Run-time errors arise from design faults, coding mistakes, hardware failures, and many other sources. Although you cannot anticipate all possible errors, you can plan to handle certain kinds of oracle sql codes list errors meaningful to your PL/SQL program. With many programming languages, unless you disable pl sql exception handling examples error checking, a run-time error such as stack overflow or division by zero stops normal processing and returns control to sqlerrm line number the operating system. With PL/SQL, a mechanism called exception handling lets you "bulletproof" your program so that it can continue operating in the presence of errors. This chapter discusses the following topics: Overview https://www.techonthenet.com/oracle/exceptions/sqlerrm.php of PL/SQL Error Handling Advantages of PL/SQL Exceptions Predefined PL/SQL Exceptions Defining Your Own PL/SQL Exceptions How PL/SQL Exceptions Are Raised How PL/SQL Exceptions Propagate Reraising a PL/SQL Exception Handling Raised PL/SQL Exceptions Tips for Handling PL/SQL Errors Overview of PL/SQL Error Handling In PL/SQL, a warning or error condition is called an exception. Exceptions can be internally defined (by the run-time system) or user defined. Examples https://docs.oracle.com/cd/A97630_01/appdev.920/a96624/07_errs.htm of internally defined exceptions include division by zero and out of memory. Some common internal exceptions have predefined names, such as ZERO_DIVIDE and STORAGE_ERROR. The other internal exceptions can be given names. You can define exceptions of your own in the declarative part of any PL/SQL block, subprogram, or package. For example, you might define an exception named insufficient_funds to flag overdrawn bank accounts. Unlike internal exceptions, user-defined exceptions must be given names. When an error occurs, an exception is raised. That is, normal execution stops and control transfers to the exception-handling part of your PL/SQL block or subprogram. Internal exceptions are raised implicitly (automatically) by the run-time system. User-defined exceptions must be raised explicitly by RAISE statements, which can also raise predefined exceptions. To handle raised exceptions, you write separate routines called exception handlers. After an exception handler runs, the current block stops executing and the enclosing block resumes with the next statement. If there is no enclosing block, control returns to the host environment. In the example below, you calculate and store a price-to-earnings ratio for a company with ticker symbol XYZ. If the company has zero earnings, the predefined exception ZERO_DIVIDE is raised. This st
TECHNOLOGY: PL/SQL Tracing Lines By Steven Feuerstein Find and report your errors—by line number—in Oracle Database 10g. PL/SQL offers a powerful and flexible exception architecture. Of course, there is always room for improvement, and in Oracle http://www.oracle.com/technetwork/testcontent/o25plsql-093886.html Database 10g, exception handling takes a big step forward with the introduction of the DBMS_UTILITY.FORMAT_ERROR_BACKTRACE function. This article explores the problem that this function solves and how best to use it. Who Raised That Exception? When an exception is raised, one of the most important pieces of information a programmer would like to uncover is the line of code that raised the exception. Prior to Oracle Database 10g, one could pl sql obtain this information only by allowing the exception to go unhandled. Let's revisit the error-handling behavior available to programmers in Oracle9i Database. Consider this simple chain of program calls in Listing 1: procedure proc3 calls proc2 calls proc1 , at which point proc1 raises the NO_DATA_FOUND exception. Notice that there is no error handling in any of the procedures; it is most significantly lacking in the top-level proc3 procedure. If I how to print run proc3 in SQL*Plus, I will see the following results: ERROR at line 1: ORA-01403: no data found ORA-06512: at "SCOTT.PROC1", line 4 ORA-06512: at "SCOTT.PROC2", line 6 ORA-06512: at "SCOTT.PROC3", line 4 ORA-06512: at line 3 Code Listing 1: A stack of procedures CREATE OR REPLACE PROCEDURE proc1 IS BEGIN DBMS_OUTPUT.put_line ('running proc1'); RAISE NO_DATA_FOUND; END; / CREATE OR REPLACE PROCEDURE proc2 IS l_str VARCHAR2(30) := 'calling proc1'; BEGIN DBMS_OUTPUT.put_line (l_str); proc1; END; / CREATE OR REPLACE PROCEDURE proc3 IS BEGIN DBMS_OUTPUT.put_line ('calling proc2'); proc2; END; / This is the error trace dump of an unhandled exception, and it shows that the error was raised on line 4 of proc1. On the one hand, we should be very pleased with this behavior. Now that we have the line number, we can zoom right in on the problem code and fix it. On the other hand, we got this information by letting the exception go unhandled. In many applications, however, we work to avoid unhandled exceptions. Let's see what happens when I add an exception section to the proc3 procedure and then display the error information (the simplest form of error logging). Here is the second version of proc3 : CREATE OR REPLACE PROCEDURE proc3 IS BEGIN DBMS_OUTPUT.put_line