Oracle Pl Sql Loop Error Handling
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errors. The latter are called exceptions. Note: The language of warning and pl sql exception handling continue loop error messages depends on the NLS_LANGUAGE parameter. For information about pl sql exception handling examples this parameter, see Oracle Database Globalization Support Guide. Topics Compile-Time Warnings Overview of Exception Handling Internally oracle raise exception with message Defined Exceptions Predefined Exceptions User-Defined Exceptions Redeclared Predefined Exceptions Raising Exceptions Explicitly Exception Propagation Unhandled Exceptions Error Code and Error Message Retrieval Continuing Execution After Handling oracle cursor exception handling within a loop Exceptions Retrying Transactions After Handling Exceptions See Also: "Exception Handling in Triggers" "Handling FORALL Exceptions After FORALL Statement Completes" Tip: If you have problems creating or running PL/SQL code, check the Oracle Database trace files. The USER_DUMP_DEST initialization parameter specifies the current location of the trace files. You can find the value
Pl Sql Exception Handling Best Practices
of this parameter by issuing SHOW PARAMETER USER_DUMP_DEST. For more information about trace files, see Oracle Database Performance Tuning Guide. Compile-Time Warnings While compiling stored PL/SQL units, the PL/SQL compiler generates warnings for conditions that are not serious enough to cause errors and prevent compilation—for example, using a deprecated PL/SQL feature. To see warnings (and errors) generated during compilation, either query the static data dictionary view *_ERRORS (described in Oracle Database Reference) or, in the SQL*Plus environment, use the command SHOW ERRORS. The message code of a PL/SQL warning has the form PLW-nnnnn. For the message codes of all PL/SQL warnings, see Oracle Database Error Messages. Table 11-1 summarizes the categories of warnings. Table 11-1 Compile-Time Warning Categories Category Description Example SEVERE Condition might cause unexpected action or wrong results. Aliasing problems with parameters PERFORMANCE Condition might cause performance problems. Passing a VARCHAR2 value to a NUMBER column in an INSERT statement INFORMATIONAL Condition does
Churchill Run-time errors arise from design faults, coding mistakes, hardware failures, and many other sources. Although you
Functions For Error Trapping Are Contained In Which Section Of A Pl/sql Block
cannot anticipate all possible errors, you can plan to handle certain exception no data found oracle kinds of errors meaningful to your PL/SQL program. With many programming languages, unless you disable error checking, pl/sql raises an exception in which two of the following cases a run-time 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 https://docs.oracle.com/cd/E11882_01/appdev.112/e25519/errors.htm handling lets you "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 https://docs.oracle.com/cd/A97630_01/appdev.920/a96624/07_errs.htm 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 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. T
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us http://stackoverflow.com/questions/5903027/is-it-possible-to-continue-a-loop-from-an-exception Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Is it possible to CONTINUE a loop from pl sql an exception? up vote 13 down vote favorite 4 I have a fetch being executed inside of a loop. If this fetch fails (no data) I would like to CONTINUE the loop to the next record from within the EXCEPTION. Is this possible? I'm getting a ORA-06550 & PLS-00201 identifer CONTINUE must be declared DECLARE v_attr char(88); CURSOR SELECT_USERS IS SELECT id FROM USER_TABLE WHERE USERTYPE = pl sql exception 'X'; BEGIN FOR user_rec IN SELECT_USERS LOOP BEGIN SELECT attr INTO v_attr FROM ATTRIBUTE_TABLE WHERE user_id = user_rec.id; EXCEPTION WHEN NO_DATA_FOUND THEN -- user does not have attribute, continue loop to next record. CONTINUE; END; END LOOP; END; oracle plsql share|improve this question edited May 5 '11 at 20:33 asked May 5 '11 at 19:23 ProfessionalAmateur 1,83972349 The CONTINUE statement is a new feature in 11g. Are you sure you are running that version? –angus May 5 '11 at 20:08 By the way, see here: stackoverflow.com/questions/177752/… –angus May 5 '11 at 20:09 @angus - We are on 10g, bummer. Guess I'll just use a NULL; and a bunch of conditional IF statements to help with the loop. Post your answer as a reply and I'll mark it as the correct answer. –ProfessionalAmateur May 5 '11 at 20:16 Done, thanks. Look at that other question, maybe you can just use GOTO. –angus May 5 '11 at 20:21 2 A simpler solution would be to loop through a query that joins the two tables - then you wouldn't have to handle any exceptions. –Adam Musch May 6 '11 at 5:27 add a