Raise Application Error Parameters
For user-defined exceptions, SQLCODE returns +1 and SQLERRM returns the message User-Defined Exception unless you used the pragma EXCEPTION_INIT to associate the exception name with an Oracle error number, in which Within this handler, you can invoke the functions SQLCODE and SQLERRM to return the Oracle Database error code and message text. Draw a $\epsilon$ neighborhood Unix Exit Command How many spells can a cleric learn? You can also perform a sequence of DML operations where some might fail, and process the exceptions only after the entire operation is complete, as described in "Handling FORALL Exceptions with click site
Passing a positive number to SQLERRM always returns the message user-defined exception unless you pass +100, in which case SQLERRM returns the message no data found. The second parameter accepts a user defined error message of 2048 kb of string at most. NO_DATA_FOUND 01403 +100 A SELECT INTO statement returns no rows, or your program references a deleted element in a nested table or an uninitialized element in an index-by table. In contrast to this application errors raised with RAISE_APPLICATION_ERROR are handled in the same code fragment as Oracle error handling - these are serious errors.
Raise Application Error Oracle Example
PL/SQL predefines some common ORA-n errors as exceptions. 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. PL/SQL declares predefined exceptions globally in package STANDARD, which defines the PL/SQL environment. In procedural statements, VALUE_ERROR is raised if the conversion of a character string into a number fails. (In SQL statements, INVALID_NUMBER is raised.) ZERO_DIVIDE 01476 -1476 A program attempts to divide
What does "Game of the Year" actually mean? Copyright © 2003-2016 TechOnTheNet.com. sal_high EXCEPTION; 5. Pragma Exception_init And Raise Application Error Once you know the error code, you can use it with pragma EXCEPTION_INIT and write a handler specifically for that error.
The second is to create exception conditions of our own, when Oracle would not throw them. One of the things I came across today is something I believe is not very well known. If no handler is found, PL/SQL returns an unhandled exception error to the host environment. EXCEPTION WHEN NO_DATA_FOUND THEN ... -- Which SELECT statement caused the error?
If no exception has been raised, SQLCODE returns zero and SQLERRM returns the message: ORA-0000: normal, successful completion. Raise Application Error In Oracle Triggers You can write handlers for predefined exceptions using the names in the following list: Exception Oracle Error SQLCODE Value ACCESS_INTO_NULL ORA-06530 -6530 CASE_NOT_FOUND ORA-06592 -6592 COLLECTION_IS_NULL ORA-06531 -6531 CURSOR_ALREADY_OPEN ORA-06511 -6511 However, the same scope rules apply to variables and exceptions. The raise_application_error will also populate the SQL errors codes so that they can be programmatically handled. ================================================== The built in procedure RAISE_APPLICATION_ERROR in the DBMS_STANDARD package can be used for displaying
up vote 13 down vote favorite 5 We can use RAISE to fire an exception. If the parameter is FALSE (the default), the error replaces all previous errors. Raise Application Error Oracle Example It also overrides two Oracle exceptions. Difference Between Raise And Raise_application_error In Oracle The built-in parameter SELF points to the object, and is always the first parameter passed to a MEMBER method.
Internal exceptions are raised implicitly (automatically) by the run-time system. get redirected here These are called Named Programmer-Defined Exceptions. If so, do it by making a call to a procedure declared with the PRAGMA AUTONOMOUS_TRANSACTION, so that you can commit your debugging information, even if you roll back the work For example, in the Oracle Precompilers environment, any database changes made by a failed SQL statement or PL/SQL block are rolled back. Raise_application_error(-20001
What is a named programmer-defined exception in Oracle? Example 11-15 Controlling the Display of PL/SQL Warnings -- Focus on one aspect: ALTER SESSION SET PLSQL_WARNINGS='ENABLE:PERFORMANCE'; -- Recompile with extra checking: ALTER PROCEDURE loc_var COMPILE PLSQL_WARNINGS='ENABLE:PERFORMANCE' REUSE SETTINGS; -- Turn Passing the value of 'True' adds the error to the current stack, while the default is 'False'. navigate to this website 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 Exceptions Defining Your Own PL/SQL Exceptions How PL/SQL Exceptions
For example, PL/SQL raises the predefined exception NO_DATA_FOUND if a SELECT INTO statement returns no rows. Write Query In Sql For Updating Data In Table You can make the checking as general or as precise as you like. NOT_LOGGED_ON 01012 -1012 A program issues a database call without being connected to the database.
EXCEPTION WHEN NO_DATA_FOUND THEN INSERT INTO errors VALUES ('Error in statement ' || stmt); END; Copyright © 1996, 2002 Oracle Corporation.
That is, the exception reproduces itself in successive enclosing blocks until a handler is found or there are no more blocks to search. up vote 24 down vote You could use RAISE_APPLICATION_ERROR like this: DECLARE ex_custom EXCEPTION; BEGIN RAISE ex_custom; EXCEPTION WHEN ex_custom THEN RAISE_APPLICATION_ERROR(-20001,'My exception was raised'); END; / That will raise an However, when an exception is raised inside a cursor FOR loop, the cursor is closed implicitly before the handler is invoked. Raise_application_error Sqlerrm The functions SQLCODE and SQLERRM are especially useful in the OTHERS handler because they return the Oracle error code and message text.
ORA-20001: Duplicate president customer excetpion Process exited. Unhandled exceptions can also affect subprograms. Oracle PostersOracle Books Oracle Scripts Ion Excel-DB Don Burleson BlogRAISE_APPLICATION_ERROR tips Oracle Database Tips by Burleson Consulting March my review here If the optional third parameter is TRUE, the error is placed on the stack of previous errors.
This stops normal execution of the block and transfers control to the exception handlers. Reraising a PL/SQL Exception Sometimes, you want to reraise an exception, that is, handle it locally, then pass it to an enclosing block. In PL/SQL, the pragma EXCEPTION_INIT tells the compiler to associate an exception name with an Oracle error number. SELF_IS_NULL 30625 -30625 A program attempts to invoke a MEMBER method, but the instance of the object type was not initialized.
Raising Exceptions with the RAISE Statement PL/SQL blocks and subprograms should raise an exception only when an error makes it undesirable or impossible to finish processing. Make your programs robust enough to work even if the database is not in the state you expect. dbms_output.put_line(SQLCODE); 14. Setting the optional third argument to TRUE means RAISE_APPLICATION_ERROR includes the triggering exception in the stack, which can be useful for diagnosis.
SQL> insert into company values(1,1003,'C Inc.','Long Name C Inc.'); 1 row created. END; 16. / Result -20001 ORA-20001: Salary is high Script Explanation: Line No. You need not declare them yourself. Just add an exception handler to your PL/SQL block.
The following link provides lots of good information on this topic and Oracle exceptions in general. You cannot return to the current block from an exception handler. If you redeclare a global exception in a sub-block, the local declaration prevails. INSERT INTO errors VALUES (v_code, v_errm, SYSTIMESTAMP); END; / The string function SUBSTR ensures that a VALUE_ERROR exception (for truncation) is not raised when you assign the value of SQLERRM to
Unlike variables, exceptions cannot appear in assignment statements or SQL statements. Example 10-16 Using the DBMS_WARNING Package to Display Warnings -- When warnings disabled, the following procedure compiles with no warnings CREATE OR REPLACE PROCEDURE unreachable_code AS x CONSTANT BOOLEAN := TRUE; THEN -- handle the error WHEN OTHERS THEN -- handle all other errors END; If you want two or more exceptions to execute the same sequence of statements, list the exception When the sub-block ends, the enclosing block continues to execute at the point where the sub-block ends, as shown in Example 11-12.
However, you can achieve the same paradigm with RAISE_APPLICATION_ERROR. SQLERRM returns the corresponding error message. When invoked, raise_application_error ends the subprogram and returns a user-defined error number and message to the application. Click Here for additional information on SQLERRM.