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Pl Sql Exception Handling Error Message


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 Redeclaring Predefined Exceptions Remember, PL/SQL declares predefined exceptions globally in package STANDARD, so you need not declare them yourself. These statements complete execution of the block or subprogram; control does not return to where the exception was raised. Internal exceptions are raised implicitly (automatically) by the run-time system. click site

When the sub-block ends, the enclosing block continues to execute at the point where the sub-block ends. CASE_NOT_FOUND ORA-06592 -6592 None of the choices in the WHEN clauses of a CASE statement were selected and there is no ELSE clause. Propagation of Exceptions Raised in Exception Handlers An exception raised in an exception handler propagates immediately to the enclosing block (or to the invoker or host environment if there is no Using Exception Handling we can test the code and avoid it from exiting abruptly. https://docs.oracle.com/cd/A97630_01/appdev.920/a96624/07_errs.htm

Oracle Raise Exception With Message

Copyright © 2003-2016 TechOnTheNet.com. You can have any number of exception handlers, and each handler can associate a list of exceptions with a sequence of statements. Databases SQL Oracle / PLSQL SQL 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

If the company has zero earnings, the predefined exception ZERO_DIVIDE is raised. So, you need not declare them yourself. A cursor FOR loop automatically opens the cursor to which it refers. Pl Sql Sqlcode IF number_on_hand < 1 THEN RAISE out_of_stock; END IF; EXCEPTION WHEN out_of_stock THEN -- handle the error END; You can also raise a predefined exception explicitly.

An error message causes the compilation to fail. Functions For Error Trapping Are Contained In Which Section Of A Pl/sql Block An exception name declaration has this syntax: exception_name EXCEPTION; For semantic information, see "Exception Declaration". Therefore, the information returned by the SQLERRM function may be different, but that returned by the SQLCODE function is the same. https://docs.oracle.com/cd/E11882_01/appdev.112/e25519/errors.htm BEGIN p(1); END; / Result: Substituting default value for invalid number.

To call RAISE_APPLICATION_ERROR, use the syntax raise_application_error(error_number, message[, {TRUE | FALSE}]); where error_number is a negative integer in the range -20000 .. -20999 and message is a character string up to Oracle Sql Codes List You need not declare them yourself. To reraise an exception, simply place a RAISE statement in the local handler, as shown in the following example: DECLARE out_of_balance EXCEPTION; BEGIN ... Example 11-1 shows several ALTER statements that set the value of PLSQL_WARNINGS.

Functions For Error Trapping Are Contained In Which Section Of A Pl/sql Block

The maximum length of an Oracle error message is 512 characters including the error code, nested messages, and message inserts such as table and column names. i thought about this In the example below, you calculate and store a price-to-earnings ratio for a company with ticker symbol XYZ. Oracle Raise Exception With Message DECLARE default_number NUMBER := 0; i NUMBER := 5; invalid_number EXCEPTION; -- redeclare predefined exception BEGIN INSERT INTO t VALUES(TO_NUMBER('100.00', '9G999')); EXCEPTION WHEN INVALID_NUMBER THEN DBMS_OUTPUT.PUT_LINE('Substituting default value for invalid number.'); Oracle Sql Error Codes nvl(l_text.count,0) LOOP dbms_output.put_line(l_text(i) ); END LOOP; dbms_output.put_line( 'error text: ' ); FOR i IN 1 ..

The pragma must appear somewhere after the exception declaration in the same declarative section, as shown in the following example: DECLARE deadlock_detected EXCEPTION; PRAGMA EXCEPTION_INIT(deadlock_detected, -60); BEGIN ... -- Some operation http://setiweb.org/pl-sql/pl-sql-error-message-exception.php With many programming languages, unless you disable error checking, a run-time error such as stack overflow or division by zero stops normal processing and returns control to the operating system. The functions SQLCODE and SQLERRM are especially useful in the OTHERS exception handler because they tell you which internal exception was raised. The results were that everything was stored in the table except the 'bad' lines. Pl Sql Exception Handling Examples

If no exception has been raised, SQLCODE returns zero and SQLERRM returns the message: ORA-0000: normal, successful completion. Command> DECLARE > v_last_name employees.last_name%TYPE := 'Patterson'; > BEGIN > DELETE FROM employees WHERE last_name = v_last_name; > IF SQL%NOTFOUND THEN > RAISE_APPLICATION_ERROR (-20201, v_last_name || ' does not exist'); > The syntax is: PRAGMA EXCEPTION_INIT (exception_name, error_code) For semantic information, see "EXCEPTION_INIT Pragma". navigate to this website Controlling PL/SQL Warning Messages To let the database issue warning messages during PL/SQL compilation, you set the initialization parameter PLSQL_WARNINGS.

With many programming languages, unless you disable error checking, a run-time error such as stack overflow or division by zero stops normal processing and returns control to the operating system. Oracle Sqlcode List Also, if a stored subprogram fails with an unhandled exception, PL/SQL does not roll back database work done by the subprogram. Errors are especially likely during arithmetic calculations, string manipulation, and database operations.

Finally, catch the exception and link the exception to a user-defined error number in RAISE_APPLICATION_ERROR.

STORAGE_ERROR ORA-06500 -6500 PL/SQL ran out of memory or memory was corrupted. When you see an error stack, or sequence of error messages, the one on top is the one that you can trap and handle. Now consider a TimesTen example where the exception is not handled, again run with autocommit disabled: create table mytable (num int not null primary key); set serveroutput on insert into mytable Oracle Exception When Others Example 11-2 uses an ALTER SESSION statement to disable all warning messages for the session and then compiles a procedure that has unreachable code.

To have the enclosing block handle the raised exception, you must remove its declaration from the sub-block or define an OTHERS handler. Who said you didn't learn anything useful in primary school? Copyright © 2003-2016 TechOnTheNet.com. http://setiweb.org/pl-sql/pl-sql-exception-get-error-message.php EXCEPTION WHEN OTHERS THEN err_num := SQLCODE; err_msg := SUBSTR(SQLERRM, 1, 100); INSERT INTO errors VALUES (err_num, err_msg); END; The string function SUBSTR ensures that a VALUE_ERROR exception (for truncation) is

However, the same scope rules apply to variables and exceptions. Retrying a Transaction After an exception is raised, rather than abandon your transaction, you might want to retry it. If a subprogram exits with an unhandled exception, then actual parameters for OUT and IN OUT formal parameters passed by value (the default) retain the values that they had before the unless you used the pragma EXCEPTION_INIT to associate the exception name with an Oracle error number, in which case SQLCODE returns that error number and SQLERRM returns the corresponding error message.

END log_error; / To Test The Error Logging Procedure exec log_error('Test', 'None', 'Did it work?'); SELECT * FROM errorlog; Database-Wide Exception Handling Using AFTER SERVERERROR CREATE TABLE error_log ( error_timestamp Execution of the handler is complete, so the sub-block terminates, and execution continues with the INSERT statement. Trapping exceptions This section describes how to trap predefined TimesTen errors or user-defined errors. If the parameter is FALSE (the default), the error replaces all previous errors.

You can find the value of this parameter by issuing SHOW PARAMETER USER_DUMP_DEST. Example 11-12 Raising User-Defined Exception with RAISE_APPLICATION_ERROR CREATE PROCEDURE account_status ( due_date DATE, today DATE ) AUTHID DEFINER IS BEGIN IF due_date < today THEN -- explicitly raise exception RAISE_APPLICATION_ERROR(-20000, 'Account For example, if you declare an exception named invalid_number and then PL/SQL raises the predefined exception INVALID_NUMBER internally, a handler written for INVALID_NUMBER will not catch the internal exception. With DBMS_WARNING subprograms, you can save the current PLSQL_WARNINGS setting, change the setting to compile a particular set of subprograms, and then restore the setting to its original value.

We can assign a name to unnamed system exceptions using a Pragma called EXCEPTION_INIT. Unlike internal exceptions, user-defined exceptions must be given names.