How To Raise Error In Oracle Stored Procedure
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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 errors meaningful oracle raise_application_error to your PL/SQL program. With many programming languages, unless you disable error checking,
Oracle Predefined Exceptions
a run-time error such as stack overflow or division by zero stops normal processing and returns control to the operating system. oracle exception 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 of PL/SQL Error Handling oracle exception when others 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 of internally defined exceptions include division
Functions For Error Trapping Are Contained In Which Section Of A Pl/sql Block
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 stops normal execution of the block and transfers control to the exception
shot at without result. —Winston 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 oracle sqlerrm handle certain kinds of errors meaningful to your PL/SQL program. With many programming no data found exception in oracle languages, unless you disable error checking, a run-time error such as stack overflow or division by zero stops normal processing
Exception Part Can Be Defined Twice In Same Block
and returns control to 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 contains https://docs.oracle.com/cd/A97630_01/appdev.920/a96624/07_errs.htm these topics: Overview of PL/SQL Runtime Error Handling Advantages of PL/SQL Exceptions Summary of 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 Compile-Time Warnings Overview of PL/SQL Runtime Error Handling In PL/SQL, an error condition is called an exception. Exceptions can be https://docs.oracle.com/cd/B13789_01/appdev.101/b10807/07_errs.htm internally defined (by the runtime system) or user defined. Examples 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. The following example calculates a price-to-earnings ratio for a company. If the company has zero earnings, the division operation raises the predefined excep
here for a quick overview of the site Help Center Detailed answers to any questions you might http://stackoverflow.com/questions/6020450/oracle-pl-sql-raise-user-defined-exception-with-custom-sqlerrm have Meta Discuss the workings and policies of this site http://psoug.org/definition/raise.htm About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 in oracle million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Oracle PL/SQL - Raise User-Defined Exception With Custom SQLERRM up vote 45 down vote favorite 21 Is it possible to create user-defined exceptions and be able to change the SQLERRM? For example: DECLARE ex_custom EXCEPTION; BEGIN RAISE ex_custom; how to raise EXCEPTION WHEN ex_custom THEN DBMS_OUTPUT.PUT_LINE(SQLERRM); END; / The output is "User-Defined Exception". Is it possible to change that message? EDIT: Here is some more detail. I hope this one illustrates what I'm trying to do better. DECLARE l_table_status VARCHAR2(8); l_index_status VARCHAR2(8); l_table_name VARCHAR2(30) := 'TEST'; l_index_name VARCHAR2(30) := 'IDX_TEST'; ex_no_metadata EXCEPTION; BEGIN BEGIN SELECT STATUS INTO l_table_status FROM USER_TABLES WHERE TABLE_NAME = l_table_name; EXCEPTION WHEN NO_DATA_FOUND THEN -- raise exception here with message saying -- "Table metadata does not exist." RAISE ex_no_metadata; END; BEGIN SELECT STATUS INTO l_index_status FROM USER_INDEXES WHERE INDEX_NAME = l_index_name; EXCEPTION WHEN NO_DATA_FOUND THEN -- raise exception here with message saying -- "Index metadata does not exist." RAISE ex_no_metadata; END; EXCEPTION WHEN ex_no_metadata THEN DBMS_OUTPUT.PUT_LINE('Exception will be handled by handle_no_metadata_exception(SQLERRM) procedure here.'); DBMS_OUTPUT.PUT_LINE(SQLERRM); END; / In reality, there are dozens of those sub-blocks. I'm wondering if there's a way to have a single user-defined exception for each of those sub-blocks to raise, but have it give a diff
Code Library PHP Code Library JavaScript Code Library Oracle Terms & Definitions Oracle Error Codes PSOUG Community Blogs Oracle Jobs Board PSOUG Forum Oracle User Group Directory Free Oracle Magazines Online Learning Center PSOUG Presentations Advanced Code Search News and Events Sponsors Page Submit Code Contact Us Looking for the original pages? (formerly called "Morgan's Library") You can find them here. Term: RAISE Definition: In Oracle PL/SQL, the RAISE statement is used to explicitly raise an exception within a PL/SQL block. It immediately stops normal execution of a PL/SQL block or subprogram and transfers control to an exception handler. It can be used to raise both system defined and user defined exceptions. If an exception is raised and PL/SQL cannot find a handler for it in the current block, the exception then propagates to successive enclosing blocks, until a handler is found or there are no more blocks to propagate to. If no handler is found, PL/SQL returns an unhandled exception error to the host environment. Example Syntax: RAISE [EXCEPTION NAME] Example Usage: The PL/SQL block below selects an employee corresponding to a given employee IDd. If no employee record is found it raises the NO_DATA_FOUND exception and displays a message. Note that NO_DATA_FOUND is a system defined exception. DECLARE L_EMP VARCHAR2(1000); CURSOR C IS SELECT ENAME FROM EMPLOYEE WHERE EMPNO = 300; BEGIN OPEN C; FETCH C INTO L_EMP; CLOSE C; IF L_EMP IS NULL THEN RAISE NO_DATA_FOUND; END IF; EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No Employee exists for this employee ID.'); END; No Employee exists for this employee ID. PL/SQL procedure successfully completed. Related Links: Exception Handling: RAISE Examples & Syntax Example using RAISE Example using