Pl/sql Error Handling In Loop
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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 Learn more about Stack Overflow the company Business Learn more about hiring developers pl sql exception handling continue loop or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x pl sql continue 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 pl sql exception handling best practices only takes a minute: Sign up Is it possible to CONTINUE a loop from 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) pl sql exception handling examples 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 = '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;
Cursor Exceptions In Oracle
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 comment| 3 Answers 3 active oldest votes up vote 11 down vote accepted The CONTINUE statement is a new feature in 11g. Here is a related question: 'CONTINUE' keyword in Oracle 10g PL/SQL share|improve this answer answered May 5 '11 at 20:20 angus 1,83111020 add a comment| up vote 9 down vote In the construct you have provided, you don't need a CONTINUE. Once the exception is handled, the statement after the END is performed, assuming you
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 to handle certain kinds
Cursor For Loop No Data Found Oracle
of errors meaningful to your PL/SQL program. With many programming languages, unless you exception when others disable error checking, a run-time error such as stack overflow or division by zero stops normal processing and returns oracle raise exception 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 presence of errors. This chapter discusses the following http://stackoverflow.com/questions/5903027/is-it-possible-to-continue-a-loop-from-an-exception 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 an exception. Exceptions can be internally defined (by the run-time system) or https://docs.oracle.com/cd/A97630_01/appdev.920/a96624/07_errs.htm 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 example below, you calculate and store a price-to-earnings ratio for a company with ticker symbol XYZ. If the company has zero earnings, the predef
This Site Careers Other all forums Forum: Oracle/OAS EXCEPTION inside FOR..LOOP raseena nm Greenhorn Posts: 25 posted 12 years ago HI, declare cursor c1 is select sid,scity from supplier; wrong_city https://coderanch.com/t/80294/Oracle-OAS/EXCEPTION-LOOP exception; begin for s_rec in c1 loop if s_rec.scity = 'bangalore' then raise wrong_city; end if; end loop; exception when wrong_city then dbms_output.put_line('wrong city'); end; result: SQL> / wrong city PL/SQL procedure successfully completed. Here in my table 'SUPPLIER' i've more than 1 record which has the value 'BANGALORE'. But this code ends as sson as it got one record with the value pl sql 'BANGALORE'. I want continue the loop until all the records are checking. How can i go back to that FOR ..LOOP after fetching and displaying the exception? can anybody give me the solution? thanx . Mark Spritzler ranger Sheriff Posts: 17278 6 I like... posted 12 years ago When it equals Bangalore don't raise an expection. This will automatically send you pl sql exception to the Exception section. Now if you must raise this then just put a BEGIN/EXCEPTION/END around that part of the code. This way it will catch the exception, then continue after the END, which will be your remaining code, and stays inside the LOOP. It looks like all you want to do is send the DBMS output. Why not just put that one line in the THEN of the IF statement. putting the output in the If statement This is the one I prefer. declare cursor c1 is select sid,scity from supplier; begin for s_rec in c1 loop if s_rec.scity = 'bangalore' then dbms_output.put_line('wrong city'); end if; end loop; exception when others then dbms_output.put_line('other exception'); end; If you must raise an exception. declare cursor c1 is select sid,scity from supplier; wrong_city exception; begin for s_rec in c1 loop BEGIN if s_rec.scity = 'bangalore' then raise wrong_city; end if; EXCEPTION when wrong_city then dbms_output.put_line('wrong city'); END; end loop; exception when others then dbms_output.put_line('other exception'); end; Hope that helps Mark Perfect World Programming, LLC - iOS Apps How to Ask Questions the Smart Way FAQ Mark Spri