Raise Application Error In Oracle Reports
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Kyte � Last updated: August 28, 2013 - 7:31 pm UTC Category: Database � Version: 8.1.7 Whilst you are here, check out some content from the AskTom team: Better SQL via query blocknames Latest Followup You Asked Tom 1. I have a
Raise Application Error Oracle Example
procedure, where in I drop partitions every day and add partitions. My question is about oracle raise the exception section. Do I have to give specific exception conditions to handle the erros which are possible while dropping and adding partitions, difference between raise and raise_application_error in oracle or should I leave it by just giving the when others then exception, or should I leave it alone by not giving the exception section at all. what are the possible erros which can occur while trying
Raise_application_error(-20001
to create a partition and trying to drop a partition. 2. The use of pragma exception init is very clear, but Why do you have to use a raise application error. Can I just use a regular exception, and raise it when I require to. I dont see the specific use of raise application error. what is the advantage of raise application error over a regular exception which you declare in the exception section
Pragma Exception_init And Raise Application Error
and use it. (the only advantage seems to be that you can assign a number(20001 to 20999) to the error.) correct me if Iam wrong. and we said... 1) A when others is almost always a BUG unless it is immediately followed by a RAISE. The point of an exception block is to catch exceptional conditions you are EXPECTING, handle them gracefully and continue. For example, lets say you have a procedure that will either INSERT a new record or UPDATE an existing one depending on whether or not it exists. You could code: begin insert into t ( columns.... ) values ( values ..... ); exception when dup_val_on_index then -- record already exists, lets update it update t set .... = .... where ....; end; Now, if that was coded: begin insert into t ( columns.... ) values ( values ..... ); exception when dup_val_on_index then -- record already exists, lets update it update t set .... = .... where ....; when others then null; end; that would be a bug. The when others would fire upon some spurious -- un-expected error and the record would be neither added nor updated. It would be skipped. Same with your routines, if you have a when others -- and don't do anything meaningful in it (eg: email yourself a notification that it failed
program to continue to operate in the presence of errors. Topics: Overview of PL/SQL Run-Time Error Handling Guidelines for Avoiding and Handling PL/SQL Errors and Exceptions Advantages of PL/SQL Exceptions Predefined PL/SQL raise_application_error parameters Exceptions Defining Your Own PL/SQL Exceptions How PL/SQL Exceptions Are Raised How PL/SQL
Raise Application Error In Oracle Triggers
Exceptions Propagate Reraising a PL/SQL Exception Handling Raised PL/SQL Exceptions Overview of PL/SQL Compile-Time Warnings Overview of PL/SQL Run-Time Error raise application error oracle forms Handling In PL/SQL, an error condition is called an exception. An exception can be either internally defined (by the run-time system) or user-defined. Examples of internally defined exceptions are ORA-22056 (value string is divided https://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:1155066278457 by zero) and ORA-27102 (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 your own exceptions 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. User-defined exceptions must be given names. When an error https://docs.oracle.com/cd/B28359_01/appdev.111/b28370/errors.htm 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 or invocations of the procedure DBMS_STANDARD.RAISE_APPLICATION_ERROR. 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. For information about managing errors when using BULK COLLECT, see Handling FORALL Exceptions (%BULK_EXCEPTIONS Attribute). Example 11-1 calculates a price-to-earnings ratio for a company. If the company has zero earnings, the division operation raises the predefined exception ZERO_DIVIDE, the execution of the block is interrupted, and control is transferred to the exception handlers. The optional OTHERS handler catches all exceptions that the block does not name specifically. Example 11-1 Run-Time Error Handling DECLARE stock_price NUMBER := 9.73; net_earnings NUMBER := 0; pe_ratio NUMBER; BEGIN -- Calculation might cause division-by-zero error. pe_ratio := stock_price / net_earnings; DBMS_OUTPUT.PUT_LINE('Price/earnings ratio = ' || pe_ratio); EXCEPTION -- exception handlers begin -- Only o
Server MySQL MariaDB PostgreSQL SQLite MS Office Excel Access Word Web Development HTML CSS Color Picker Languages C Language More ASCII Table Linux UNIX Java https://www.techonthenet.com/oracle/exceptions/sqlerrm.php Clipart Techie Humor Advertisement Oracle Basics Oracle Advanced Oracle Cursors Oracle Exception Handling Named Programmer-Defined Exception Named System Exception WHEN OTHERS Clause SQLCODE SQLERRM Oracle Foreign Keys Oracle http://stackoverflow.com/questions/1760596/oracle-what-is-the-situation-to-use-raise-application-error Loops/Conditionals Oracle Transactions Oracle Triggers String/Char Functions Numeric/Math Functions Date/Time Functions Conversion Functions Analytic Functions Advanced Functions NEXT: Declare Cursor Oracle / PLSQL: SQLERRM Function This Oracle tutorial raise application 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 The syntax for the SQLERRM function in Oracle/PLSQL is: raise application error 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. We use advertisements to support this website and fund the development of new content. Copyright © 2003-2016 TechOnTheNet.com.
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site 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 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Oracle: what is the situation to use RAISE_APPLICATION_ERROR? up vote 13 down vote favorite 5 We can use RAISE to fire an exception. What particular situations do we need to use RAISE_APPLICATION_ERROR? Thanks. oracle share|improve this question asked Nov 19 '09 at 2:56 Ricky 8,3982762100 I found a useful link for similar question. toadworld.com/platforms/oracle/b/weblog/archive/2010/07/14/… –gmail user Feb 6 '14 at 16:30 add a comment| 4 Answers 4 active oldest votes up vote 23 down vote accepted There are two uses for RAISE_APPLICATION_ERROR. The first is to replace generic Oracle exception messages with our own, more meaningful messages. The second is to create exception conditions of our own, when Oracle would not throw them. The following procedure illustrates both usages. It enforces a business rule that new employees cannot be hired in the future. It also overrides two Oracle exceptions. One is DUP_VAL_ON_INDEX, which is thrown by a unique key on EMP(ENAME). The other is a a user-defined exception thrown when the foreign key between EMP(MGR) and EMP(EMPNO) is violated (because a manager must be an existing employee). create or replace procedure new_emp ( p_name in emp.ename%type , p_sal in emp.sal%type , p_job in emp.job%type , p_dept in emp.deptno%type , p_mgr in emp.mgr%type , p_hired in emp.hiredate%type := sysdate ) is invalid_manager exception; PRAGMA EXCEPTION_INIT(invalid_manager, -2291); dummy varchar2(1); begin -- check hiredate is valid if trunc(p_hired) > trunc(sysdate) then raise_application_error (-20000 , 'NEW_EMP::hiredate cannot be in the future'); end if; insert into emp ( ename , sal , job , deptno , mgr , hiredate ) values ( p_name , p_sal , p_job , p_dept , p_mgr , trunc(p_hired) ); exception when dup_val_on_index then raise_application_error (-20001 , 'NEW_EMP::employee called '||p_name||' already exists' , true); when invalid_manager then raise_application_error (-20002 , 'NEW_EMP::'||p_mgr ||' is not a valid manager'); end; / How it looks: SQL> exec new_emp ('DUGGAN', 2500, 'SALES', 10, 77