Raise Application Error Exception
dbms_output.put_line(sqlerrm); 15. My code is self-documenting! SQL> insert into company values(2,1004,'D Inc.','Long Name D Inc.'); 1 row created. One is DUP_VAL_ON_INDEX, which is thrown by a unique key on EMP(ENAME). click site
the other?" Instead of answering via an email to just one developer, I thought I might share my answer with everyone. Before UPDATE ON employees 3. The usual scoping rules for PL/SQL variables apply, so you can reference local and global variables in an exception handler. After an exception handler runs, the current block stops executing and the enclosing block resumes with the next statement.
Make your programs robust enough to work even if the database is not in the state you expect. Thus, the RAISE statement and the WHEN clause refer to different exceptions. 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;
Draw an ASCII-O'-Lantern for Halloween What to do with my pre-teen daughter who has been out of control since a severe accident? 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. You declare an exception by introducing its name, followed by the keyword EXCEPTION. Raise Application Error In Oracle Triggers Example 11-6 Using RAISE to Raise a User-Defined Exception DECLARE out_of_stock EXCEPTION; number_on_hand NUMBER := 0; BEGIN IF number_on_hand < 1 THEN RAISE out_of_stock; -- raise an exception that you defined
Figure 10-1, Figure 10-2, and Figure 10-3 illustrate the basic propagation rules. Raise_application_error Vs Raise INFORMATIONAL: Messages for conditions that do not have an effect on performance or correctness, but that you might want to change to make the code more maintainable, such as unreachable code For a workaround, see Defining Your Own Error Messages (RAISE_APPLICATION_ERROR Procedure). CREATE OR REPLACE TRIGGER trg_emp_detail_chk 2.
In the above example, a trigger has been created in the schema A to stop any modification to the EMPLOYEES table's data during the weekend. Raise_application_error Sqlerrm more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed UPDATE employees SET salary=salary+1000 WHERE employee_id=100; Error report: SQL Error: ORA-20000: You are not authorized to do any modification in the weekends!! To retrieve the associated error message, you can use either the packaged function DBMS_UTILTY.FORMAT_ERROR_STACK or the built-in function SQLERRM.
Raise_application_error Vs Raise
Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. In such cases, you must use dot notation to specify the predefined exception, as follows: EXCEPTION WHEN invalid_number OR STANDARD.INVALID_NUMBER THEN -- handle the error END; How PL/SQL Exceptions Are Raised Oracle Raise Feel free to ask questions on our Oracle forum. Raise_application_error(-20001 NOT_LOGGED_ON 01012 -1012 A program issues a database call without being connected to Oracle.
In Example 10-5, you call raise_application_error if an error condition of your choosing happens (in this case, if the current schema owns less than 1000 tables): Example 10-5 Raising an Application get redirected here The second is to create exception conditions of our own, when Oracle would not throw them. For example, in the Oracle Precompilers environment, any database changes made by a failed SQL statement or PL/SQL block are rolled back. You can place RAISE statements for a given exception anywhere within the scope of that exception. Raise_application_error Parameters
Unlike predefined exceptions, user-defined exceptions must be declared and must be raised explicitly by RAISE statements. Internal exceptions are raised implicitly (automatically) by the run-time system. Figure 10-1 Propagation Rules: Example 1 Description of the illustration lnpls009.gif Figure 10-2 Propagation Rules: Example 2 Description of the illustration lnpls010.gif Figure 10-3 Propagation Rules: Example 3 Description of the navigate to this website Fantasy Story about Phantom Tollbooth/Where the Wild Things Are kids as Adults Why generic lambdas are allowed while nested structs with templated methods aren't?
Controlling PL/SQL Warning Messages To let the database issue warning messages during PL/SQL compilation, you set the initialization parameter PLSQL_WARNINGS. Raise Application Error In Sql Server dbms_output.put_line(SQLCODE); 14. If you want two or more exceptions to execute the same sequence of statements, list the exception names in the WHEN clause, separating them by the keyword OR, as follows: EXCEPTION
pe_ratio := stock_price / net_earnings; DBMS_OUTPUT.PUT_LINE('Price/earnings ratio = ' || pe_ratio); EXCEPTION -- exception handlers begin -- Only one of the WHEN blocks is executed.
What is the practical duration of Prestidigitation? However, if you exit with an unhandled exception, PL/SQL does not assign values to OUT parameters (unless they are NOCOPY parameters). Figure 11-1, Figure 11-2, and Figure 11-3 illustrate the basic propagation rules. Raise_application_error Error Number Range raise_application_error(-20000, 'You are not authorized to do any modification in the weekends!!'); 8.
pragma exception_init(sal_high,-20001); 6. Also, if a stored subprogram fails with an unhandled exception, PL/SQL does not roll back database work done by the subprogram. END IF; 9. http://vealcine.com/raise-application/raise-application-error-asp-net.php RAISE_APPLICATION_ERROR The user defined exception can be combined with the RAISE_APPLICATION_ERROR procedure to result into an exception with a user defined name, user defined error code and a user defined message.
Example 11-2 Managing Multiple Errors with a Single Exception Handler DECLARE emp_column VARCHAR2(30) := 'last_name'; table_name VARCHAR2(30) := 'emp'; temp_var VARCHAR2(30); BEGIN temp_var := emp_column; SELECT COLUMN_NAME INTO temp_var FROM USER_TAB_COLS Add error-checking code whenever bad input data can cause an error. You can have any number of exception handlers, and each handler can associate a list of exceptions with a sequence of statements. In Example 10-6, you alert your PL/SQL block to a user-defined exception named out_of_stock.
In Example 10-13, the INSERT statement might raise an exception because of a duplicate value in a unique column. Thus, the RAISE statement and the WHEN clause refer to different exceptions. Search BC Oracle Sites HomeE-mail Us Oracle Articles New Oracle Articles Oracle TrainingOracle Tips Oracle ForumClass Catalog Remote DBAOracle TuningEmergency 911RAC SupportApps SupportAnalysisDesignImplementationOracle SupportSQL STORAGE_ERROR 06500 -6500 PL/SQL ran out of memory or memory was corrupted.
WHEN sal_high THEN 13. VALUE_ERROR 06502 -6502 An arithmetic, conversion, truncation, or size-constraint error occurs.