A cursor FOR loop automatically opens the cursor to which it refers. In procedural statements, VALUE_ERROR is raised if the conversion of a character string into a number fails. (In SQL statements, INVALID_NUMBER is raised.) ZERO_DIVIDE A program attempts to divide With this technique, use a FOR or WHILE loop to limit the number of attempts. Redeclaring predefined exceptions is error prone because your local declaration overrides the global declaration. http://back2cloud.com/pl-sql/pl-sql-exit-on-error.php
So, you need not declare them yourself. Unhandled exceptions can also affect subprograms. Although you cannot anticipate all possible errors, you can plan to handle certain kinds of errors meaningful to your PL/SQL program. ALTER PROCEDURE dead_code COMPILE; See Also: ALTER PROCEDURE, DBMS_WARNING package in the PL/SQL Packages and Types Reference, PLW- messages in the Oracle Database Error Messages Previous Next Copyright©1996, 2003OracleCorporation All Rights http://stackoverflow.com/questions/21786763/exit-execution-when-error-occurs-pl-sql
No matter how severe the error is, you want to leave the database in a consistent state and avoid storing any bad data. STORAGE_ERROR PL/SQL runs out of memory or memory has been corrupted. END; Handlers in the current block cannot catch the raised exception because an exception raised in a declaration propagates immediately to the enclosing block.
Therefore, the sequence of statements is executed at least once. I can able to handle the exception there. If no exception has been raised, SQLCODE returns zero and SQLERRM returns the message: ORA-0000: normal, successful completion. Exception Handling In Oracle Stored Procedure Example Syntax: The syntax for an EXIT WHEN statement in PL/SQL is as follows: EXIT WHEN condition; The EXIT WHEN statement replaces a conditional statement like if-then used with the EXIT statement.
Thus, the RAISE statement and the WHEN clause refer to different exceptions. Pl Sql Developer Stop Execution Because a block can reference only local or global exceptions, enclosing blocks cannot reference exceptions declared in a sub-block. For example, in the Oracle Precompilers environment, any database changes made by a failed SQL statement or PL/SQL block are rolled back. my review here To retrieve the associated error message, you can use either the packaged function DBMS_UTILTY.FORMAT_ERROR_STACK or the built-in function SQLERRM.
Handle named exceptions whenever possible, instead of using WHEN OTHERS in exception handlers. Oracle Exit Procedure For example, the following GOTO statement is illegal: DECLARE pe_ratio NUMBER(3,1); BEGIN DELETE FROM stats WHERE symbol = 'XYZ'; SELECT price / NVL(earnings, 0) INTO pe_ratio FROM stocks WHERE symbol = The advantage, in this instance, of graphical tools that emulate sqlplus, is that they really stop the script and don't submit the remainder of the script to the command shell as fabulous2 Shell Programming and Scripting 8 08-12-2008 12:27 PM Error in issuing a make and make install ahjiefreak Linux 1 03-12-2008 01:32 AM Where can I find a list of exit
But remember, an exception is an error condition, not a data item. IF-THEN Statement The simplest form of IF statement associates a condition with a sequence of statements enclosed by the keywords THEN and END IF (not ENDIF), as follows: IF condition THEN Pl Sql Exit Procedure The message begins with the Oracle error code. Pl Sql Stop Execution The usual scoping rules for PL/SQL variables apply, so you can reference local and global variables in an exception handler.
GOTO Statement The GOTO statement branches to a label unconditionally. ELSE RAISE insufficient_funds; END IF; END IF; IF-THEN-ELSIF Statement Sometimes you want to select an action from several mutually exclusive alternatives. END LOOP; CLOSE c1; Until the condition is true, the loop cannot complete. If the condition is false or null, the IF statement does nothing. Pl/sql Continue After Exception
The error number and message can be trapped like any Oracle error. For internal exceptions, SQLCODE returns the number of the Oracle error. END; Omitting the exception name in a RAISE statement--allowed only in an exception handler--reraises the current exception. Get More Info In the following example, you declare an exception named past_due: DECLARE past_due EXCEPTION; Exception and variable declarations are similar.
In the following example, if the SELECT INTO statement raises ZERO_DIVIDE, you cannot resume with the INSERT statement: CREATE TABLE employees_temp AS SELECT employee_id, salary, commission_pct FROM employees; DECLARE sal_calc NUMBER(8,2); Whenever Sqlerror Exit THEN RAISE past_due; END IF; END; ------------- sub-block ends EXCEPTION ... total := total + salary; END LOOP; The number of iterations depends on the condition and is unknown until the loop completes.
TOO_MANY_ROWS A SELECT INTO statement returns more than one row. END LOOP; | END LOOP; FOR-LOOP Whereas the number of iterations through a WHILE loop is unknown until the loop completes, the number of iterations through a FOR loop is known An application can invoke raise_application_error only from an executing stored subprogram (or method). Pl/sql Break Loop Previous Page Print PDF Next Page plsql_loops.htm Advertisements Write for us FAQ's Helping Contact © Copyright 2016.
In the following example, you declare an exception named past_due: DECLARE past_due EXCEPTION; Exception and variable declarations are similar. The value it yields can have any PL/SQL datatype other than BLOB, BFILE, an object type, a PL/SQL record, an index-by-table, a varray, or a nested table. For example, if you know that the warning message PLW-05003 represents a serious problem in your code, including 'ERROR:05003' in the PLSQL_WARNINGS setting makes that condition trigger an error message (PLS_05003) Join them; it only takes a minute: Sign up Exit execution when error occurs PL/SQL up vote 3 down vote favorite I would like to know, how can I exit the
The built-in parameter SELF points to the object, and is always the first parameter passed to a MEMBER method. STORAGE_ERROR PL/SQL runs out of memory or memory has been If the transaction fails, control transfers to the exception handler, where you roll back to the savepoint undoing any changes, then try to fix the problem. Redeclaring predefined exceptions is error prone because your local declaration overrides the global declaration. If the exception is ever raised in that block (or any sub-block), you can be sure it will be handled.
To have the enclosing block handle the raised exception, you must remove its declaration from the sub-block or define an OTHERS handler. An alternative to the CASEstatement is the CASE expression, where each WHEN clause is an expression. You can write handlers for predefined exceptions using the names in the following list: Exception Oracle Error SQLCODE Value ACCESS_INTO_NULL ORA-06530 -6530 CASE_NOT_FOUND ORA-06592 -6592 COLLECTION_IS_NULL ORA-06531 -6531 CURSOR_ALREADY_OPEN ORA-06511 -6511 When you see an error stack, or sequence of error messages, the one on top is the one that you can trap and handle.
END; Normally, this is not a problem. See EXIT for more information. CASE_NOT_FOUND None of the choices in the WHEN clauses of a CASE statement is selected, and there is no ELSE clause.