Raise Sql Error Oracle
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user-defined exceptions whose names you decide. For more information, see "Defining Your Own PL/SQL pl sql raise application error Exceptions". Syntax raise statement ::= Description of the illustration raise_statement.gif
Oracle Raise No_data_found
Keyword and Parameter Description exception_name A predefined or user-defined exception. For a list of raise without exception name oracle the predefined exceptions, see "Summary of Predefined PL/SQL Exceptions". Usage Notes PL/SQL blocks and subprograms should RAISE an exception only when an error raise user defined exception in oracle stored procedure makes it impractical to continue processing. You can code a RAISE statement for a given exception anywhere within the scope of that exception. When an exception is raised, if PL/SQL cannot find a handler for it in the current block, the exception propagates to successive enclosing blocks, until
Difference Between Raise And Raise_application_error In Oracle
a handler is found or there are no more blocks to search. If no handler is found, PL/SQL returns an unhandled exception error to the host environment. In an exception handler, you can omit the exception name in a RAISE statement, which raises the current exception again. This technique allows you to take some initial corrective action (perhaps just logging the problem), then pass control to another handler that does more extensive correction. When an exception is reraised, the first block searched is the enclosing block, not the current block. Examples For examples, see the following: Example 1-12, "Creating a Stored Subprogram" Example 9-3, "Creating the emp_admin Package" Example 10-3, "Scope of PL/SQL Exceptions" Example 10-9, "Reraising a PL/SQL Exception" Related Topics "Exception Definition" Scripting on this page enhances content navigation, but does not change the content in any way.
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Oracle Function Exception Example
Looking for the original pages? (formerly called "Morgan's Library") You can find them here. Term: RAISE Definition: In Oracle PL/SQL, the RAISE statement is used to explicitly raise http://docs.oracle.com/cd/B19306_01/appdev.102/b14261/raise_statement.htm an exception within a PL/SQL block. It immediately stops normal execution of a PL/SQL block or subprogram and transfers control to an exception handler. It can be used to raise both system defined and user defined exceptions. If an exception is raised and PL/SQL cannot find a handler for it in the current block, the exception then propagates to successive http://psoug.org/definition/raise.htm enclosing blocks, until a handler is found or there are no more blocks to propagate to. If no handler is found, PL/SQL returns an unhandled exception error to the host environment. Example Syntax: RAISE [EXCEPTION NAME] Example Usage: The PL/SQL block below selects an employee corresponding to a given employee IDd. If no employee record is found it raises the NO_DATA_FOUND exception and displays a message. Note that NO_DATA_FOUND is a system defined exception. DECLARE L_EMP VARCHAR2(1000); CURSOR C IS SELECT ENAME FROM EMPLOYEE WHERE EMPNO = 300; BEGIN OPEN C; FETCH C INTO L_EMP; CLOSE C; IF L_EMP IS NULL THEN RAISE NO_DATA_FOUND; END IF; EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No Employee exists for this employee ID.'); END; No Employee exists for this employee ID. PL/SQL procedure successfully completed. Related Links: Exception Handling: RAISE Examples & Syntax Example using RAISE Example using RAISE Example using RAISE Home : Code Library : Sponsors : Privacy : Terms of Use : Contact Us 192 users online © 2009 psoug.org PSOUG LOGIN Username: Password: Forgot your password?
Server MySQL MariaDB PostgreSQL SQLite MS Office Excel Access Word Web Development HTML CSS Color Picker https://www.techonthenet.com/oracle/exceptions/named_prog.php Languages C Language More ASCII Table Linux UNIX Java Clipart http://plsql-tutorial.com/plsql-exception-handling.htm Techie Humor Advertisement Oracle Basics Oracle Advanced Oracle Cursors Oracle Exception Handling Named Programmer-Defined Exception Named System Exception WHEN OTHERS Clause SQLCODE SQLERRM Oracle Foreign Keys Oracle Loops/Conditionals Oracle Transactions Oracle Triggers String/Char Functions Numeric/Math Functions Date/Time Functions oracle raise Conversion Functions Analytic Functions Advanced Functions NEXT: WHEN OTHERS Clause Oracle / PLSQL: Named Programmer-Defined Exceptions This Oracle tutorial explains how to use Named Programmer-Defined Exceptions in Oracle/PLSQL with syntax and examples. What is a named programmer-defined exception in Oracle? Sometimes, it is necessary for programmers to name user defined exception and trap their own exceptions - ones that aren't defined already by PL/SQL. These are called Named Programmer-Defined Exceptions. Syntax We will take a look at the syntax for Named Programmer-Defined Exceptions in both procedures and functions. Syntax for Procedures The syntax for the Named Programmer-Defined Exception in a procedure is: CREATE [OR REPLACE] PROCEDURE procedure_name [ (parameter [,parameter]) ] IS [declaration_section] exception_name EXCEPTION; BEGIN executable_section RAISE exception_name; EXCEPTION WHEN exception_name THEN [statements] WHEN OTHERS THEN [statements] END [procedure_name]; Syntax for Functions The syntax for the Named Programmer-Defined Exception in a function is: CREATE [OR REPLACE] FUNCTION function_name [ (parameter [,parameter]) ] RETURN return_datatype IS | AS [declaration_section] exception_name EXCEPTION; BEGIN executable_section RAISE exception_name; EXCEPTION WHEN exception_name THEN [statements] WHEN OTHERS THEN [statements] END [function_name]; Example Here is an example of a procedure that uses a Named Programmer-Defined Exception: CREATE OR REPLACE PR
| PL/SQL Exception Handling Exception Handling In this section we will discuss about the following, 1) What is Exception Handling. 2) Structure of Exception Handling. 3) Types of Exception Handling. 1) What is Exception Handling? PL/SQL provides a feature to handle the Exceptions which occur in a PL/SQL Block known as exception Handling. Using Exception Handling we can test the code and avoid it from exiting abruptly. When an exception occurs a messages which explains its cause is recieved. PL/SQL Exception message consists of three parts. 1) Type of Exception 2) An Error Code 3) A message By Handling the exceptions we can ensure a PL/SQL block does not exit abruptly. 2) Structure of Exception Handling. General Syntax for coding the exception section DECLARE Declaration section BEGIN Exception section EXCEPTION WHEN ex_name1 THEN -Error handling statements WHEN ex_name2 THEN -Error handling statements WHEN Others THEN -Error handling statements END; General PL/SQL statments can be used in the Exception Block. When an exception is raised, Oracle searches for an appropriate exception handler in the exception section. For example in the above example, if the error raised is 'ex_name1 ', then the error is handled according to the statements under it. Since, it is not possible to determine all the possible runtime errors during testing fo the code, the 'WHEN Others' exception is used to manage the exceptions that are not explicitly handled. Only one exception can be raised in a Block and the control does not return to the Execution Section after the error is handled. If there are nested PL/SQL blocks like this. DELCARE Declaration section BEGIN DECLARE Declaration section BEGIN Execution section EXCEPTION Exception section END; EXCEPTION Exception section END; In the above case, if the exception is raised in the inner block it should be handled in the exception block of the inner PL/SQL block else the control moves to the Exception block of the next upper PL/SQL Block. If none of the blocks handle the exception the program ends abruptly with an error. 3) Types of Exception. There are 3 types of Exceptions. a) Named System Exceptions b) Unnamed System Exceptions c) User-defined Exceptions a) Named System Exceptions System exceptions are automatically raised by Oracle, when a program violates a RDBMS rule. There are some system exceptions which are raised frequently, so they are pre-defined and given a name in Oracle which are known as Named System Exceptions. For example: NO_DATA_FOUND and ZERO_DIVIDE are called Named System exceptions. Named system exception