Raise Application Error Oracle Example
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to your PL/SQL program. With many programming languages, unless you disable error checking, a run-time error difference between raise and raise_application_error in oracle such as stack overflow or division by zero stops normal raise_application_error(-20001 processing and returns control to the operating system. With PL/SQL, a mechanism called exception handling oracle raise lets you bulletproof your program so that it can continue operating in the presence of errors. This chapter contains these topics: Overview of PL/SQL Runtime
Raise_application_error Parameters
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 Overview of PL/SQL Compile-Time Warnings Overview of PL/SQL Runtime Error Handling In PL/SQL, an error condition is called raise application error in oracle triggers an exception. Exceptions can be 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.
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 raise_application_error sqlerrm to handle certain kinds of errors meaningful to your PL/SQL program. With
Raise_application_error In Oracle 11g
many programming languages, unless you disable error checking, a run-time error such as stack overflow or division by zero
Raise Application Error In Sql Server
stops normal processing 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 https://docs.oracle.com/cd/B19306_01/appdev.102/b14261/errors.htm presence of errors. This chapter discusses the following topics: Overview of PL/SQL Error Handling 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 https://docs.oracle.com/cd/A97630_01/appdev.920/a96624/07_errs.htm an exception. Exceptions can be internally defined (by the run-time 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. In the e
FunctionsRegular Expressions FunctionsStatistical FunctionsLinear Regression FunctionsPL SQL Data TypesPL SQL StatementsPL SQL OperatorsPL SQL ProgrammingCursorCollectionsFunction Procedure PackagesTriggerSQL PLUS Session EnvironmentSystem Tables Data DictionarySystem PackagesObject OrientedXMLLarge ObjectsTransactionUser PrivilegeA complete example using http://www.java2s.com/Tutorial/Oracle/0480__PL-SQL-Programming/AcompleteexampleusingRAISEAPPLICATIONERROR.htm RAISE_APPLICATION_ERROR : raise_application_error«PL SQL Programming«Oracle PL/SQL TutorialOracle PL/SQL TutorialPL SQL Programmingraise_application_errorSQL> SQL> SQL> create table company( 2 product_id number(4) not null, 3 company_id http://www.oraclenerd.com/2010/10/never-use-raiseapplicationerror-again.html NUMBER(8) not null, 4 company_short_name varchar2(30) not null, 5 company_long_name varchar2(60) 6 ); Table created. SQL> insert into company values(1,1001,'A Inc.','Long Name A error in Inc.'); 1 row created. SQL> insert into company values(1,1002,'B Inc.','Long Name B Inc.'); 1 row created. SQL> insert into company values(1,1003,'C Inc.','Long Name C Inc.'); 1 row created. SQL> insert into company values(2,1004,'D Inc.','Long Name D Inc.'); 1 row created. SQL> insert into company values(2,1005,'E Inc.','Long Name raise application error E Inc.'); 1 row created. SQL> insert into company values(2,1006,'F Inc.','Long Name F Inc.'); 1 row created. SQL> SQL> SQL> SQL> SQL> CREATE OR REPLACE PROCEDURE org_proc 2 (p_flag_in VARCHAR2, 3 p_product_id NUMBER, 4 p_company_id NUMBER, 5 p_company_short_name VARCHAR2, 6 p_company_long_name VARCHAR2) 7 IS 8 v_error_code NUMBER; 9 BEGIN 10 IF (p_flag_in ='I')THEN 11 BEGIN 12 INSERT INTO company VALUES(p_product_id,p_company_id,p_company_short_name,p_company_long_name); 13 EXCEPTION WHEN OTHERS THEN 14 v_error_code :=SQLCODE; 15 IF v_error_code =-1 THEN 16 RAISE_APPLICATION_ERROR(-20000,'Organization '||TO_CHAR(p_company_id)||' already exists.'); 17 ELSIF v_error_code =-2291 THEN 18 RAISE_APPLICATION_ERROR(-20001,'Invalid Hierarchy Code '||TO_CHAR(p_product_id)||' specified.'); 19 END IF; 20 END; 21 ELSIF (p_flag_in ='C')THEN 22 BEGIN 23 UPDATE company 24 set company_short_name =p_company_short_name, 25 company_long_name =p_company_long_name 26 WHERE product_id =p_product_id 27 AND company_id =p_company_id; 28 IF SQL%NOTFOUND THEN 29 RAISE_APPLICATION_ERROR(-20002,'Organization '||TO_CHAR(p_company_id)||' does not exist.'); 30 END IF; 31 END; 32 ELSIF (p_flag_in ='D')THEN 33 B
is. It is an abomination of hard-coding and poor practice. If you didn't know that, I'm sorry I was the one who told you. I've written and used extensively an ultra-simple framework to eliminate RAISE_APPLICATION_ERROR from my code forever.Here's an example (assume 11gR2) of something we all know we can do:begin dbms_output.put_line(1/0); end;This will throw an unhandled ORA-01476 exception. We could write some meaningful handling of that with this:begin dbms_output.put_line(1/0);exception when zero_divide then dbms_output.put_line('zero divide exception caught');end;This coding is elegant because Oracle has conveniently predefined an exception named ZERO_DIVIDE and a corresponding pragma for us. Unfortunately, Oracle has only 22 predefined exceptions. What happens when I do this:declare d date;begin d := to_date('2010-09-30', 'YYYY-MM-DD'); -- works dbms_output.put_line(d); d := to_date('12345-09-30', 'YYYY-MM-DD'); -- fails dbms_output.put_line(d);end;This will throw an unhandled ORA-01861 exception. My option to handle this is less than meaningful because this is not a predefined exception:declare d date;begin d := to_date('2010-09-30', 'YYYY-MM-DD'); -- works dbms_output.put_line(d); d := to_date('12345-09-30', 'YYYY-MM-DD'); -- fails dbms_output.put_line(d);exception when others then case sqlcode when -1861 then dbms_output.put_line('literal does not match exception caught'); else raise; end case;end;This leads me to the inevitable desire to create my own named exception and pragma, so I could have code that looks like this instead:declare d date;begin d := to_date('2010-09-30', 'YYYY-MM-DD'); -- works dbms_output.put_line(d); d := to_date('12345-09-30', 'YYYY-MM-DD'); -- fails dbms_output.put_line(d);exception when error.ora_literal_string_mismatch then dbms_output.put_line('literal does not match exception caught');end;Understanding this, creating my own ERROR package with a friendly named exception and pragma for ORA-01861 leads me to the pattern of how to handle my own application exceptions, namely defining an exception and pragma. But how does this get RAISE_APPLICATION_ERROR out of my life? Consider the ERROR abbreviat