Oracle Raise Error In Function
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Churchill Run-time errors arise from design faults, coding mistakes, hardware failures, and many other sources. Although you cannot anticipate oracle raise exception with message all possible errors, you can plan to handle certain kinds of
Oracle Raise_application_error
errors meaningful to your PL/SQL program. With many programming languages, unless you disable error checking, a run-time
Pl Sql Exception Handling Examples
error such as stack overflow or division by zero stops normal processing and returns control to the operating system. With PL/SQL, a mechanism called exception handling lets you
Oracle Predefined Exceptions
"bulletproof" your program so that it can continue operating in the 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 exception part can be defined twice in same block Handling PL/SQL Errors Overview of PL/SQL Error Handling In PL/SQL, a warning or error condition is called 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 handle
shot at without result. —Winston Churchill Run-time errors arise from design faults, coding mistakes, hardware failures, and many other sources. Although you cannot oracle raise no_data_found anticipate all possible errors, you can plan to handle certain kinds pl sql continue after exception of errors meaningful to your PL/SQL program. With many programming languages, unless you disable error checking, a run-time functions for error trapping are contained in which section of a pl/sql block error such as stack overflow or division by zero stops normal processing and returns control to the operating system. With PL/SQL, a mechanism called exception handling lets you "bulletproof" https://docs.oracle.com/cd/A97630_01/appdev.920/a96624/07_errs.htm your program so that it can continue operating in the presence of errors. This chapter contains these topics: Overview of PL/SQL Runtime 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 Tips for Handling PL/SQL https://docs.oracle.com/cd/B13789_01/appdev.101/b10807/07_errs.htm Errors Overview of PL/SQL Compile-Time Warnings Overview of PL/SQL Runtime Error Handling In PL/SQL, an error condition is called 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. After an exception handler
FunctionsRegular Expressions FunctionsStatistical FunctionsLinear Regression FunctionsPL SQL Data TypesPL SQL StatementsPL SQL OperatorsPL SQL ProgrammingCursorCollectionsFunction Procedure PackagesTriggerSQL PLUS Session EnvironmentSystem Tables Data http://www.java2s.com/Tutorial/Oracle/0480__PL-SQL-Programming/RaiseExceptioninafunction.htm DictionarySystem PackagesObject OrientedXMLLarge ObjectsTransactionUser PrivilegeRaise Exception in a function : Raise Exception«PL SQL Programming«Oracle PL/SQL TutorialOracle PL/SQL TutorialPL SQL ProgrammingRaise ExceptionSQL> set serveroutput on SQL> DECLARE 2 quantity1 NUMBER := -2; 3 quantity2 NUMBER := 3; 4 total NUMBER oracle raise := 0; 5 quantity_must_positive EXCEPTION; 6 FUNCTION find_cost (quant NUMBER) RETURN NUMBER IS 7 BEGIN 8 IF (quant > 0) 9 THEN 10 RETURN(quant * 20); 11 ELSE 12 RAISE quantity_must_positive; 13 END IF; 14 END find_cost; 15 BEGIN oracle raise error 16 total := find_cost (quantity2); 17 total := total + find_cost(quantity1); 18 EXCEPTION 19 WHEN quantity_must_positive 20 THEN 21 dbms_output.put_line('Total until now: ' || total); 22 dbms_output.put_line('Tried to use negative quantity '); 23 END; 24 / Total until now: 60 Tried to use negative quantity PL/SQL procedure successfully completed. SQL> SQL> 24.16.Raise Exception24.16.1.User-Defined Errors24.16.2.Raise Exception in a function24.16.3.Raising an Exception Local PL/SQL Block24.16.4.Avoiding exceptions raised in declaration part and exception handler24.16.5.Raising an Exception in the Declaration Section24.16.6.Exceptions Raised in the Exception Handler24.16.7.Raising NO_DATA_FOUND24.16.8.Raising a custom exception24.16.9.Using WHEN OTHERS clause24.16.10.Using SQLCODE and SQLERRM24.16.11.Propogating a Server-side Customized Error Number and Error Message to client program using PRAGMA EXCEPTION_INITjava2s.com |Email:info at java2s.com|© Demo Source and Support. All rights reserved.