Divide By Zero Error Exception In Oracle
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How To Avoid Divide By Zero Error In Oracle
message. Please type your message and try again. More discussions in PL/SQL and SQL oracle sql divide by zero error All PlacesDatabaseDatabase Application DevelopmentPL/SQL and SQL This discussion is archived 5 Replies Latest reply on Oct 11, 2010 10:31 AM
Oracle Divide By Zero Function
by Robert Angel Handle divide by zero error in SQL Robert Angel Oct 11, 2010 10:07 AM Hi, a few posts back someone asked the best way to handle divide by zero. Can I revisit exception no data found oracle this theme with, what is the best way to handle divide by error in SQL without repeating code... What I have in mind is quite frequently divided by error appears as the result of a lengthy formula calculation - and trying to burying a lengthy a lengthy formula calculation in a case statement gives you an exceedingly long result, which is not great for code maintenance. Wrapping the handling prevent divide by zero sql in a function is also not great for reasons of performance. So is there any simple way to do the equivalent of (pseudo code) select IFerr( actual / (RidiculouslyLongConvulutedFormulaHereWhichSometimesYieldsZeroValues), 0) from dual Where IFerr works like NVL - except it yields 0 when the result is a number error, or the result otherwise? thanks, Robert. 13507Views Tags: none (add) This content has been marked as final. Show 5 replies 1. Re: Handle divide by zero error in SQL odie_63 Oct 11, 2010 10:15 AM (in response to Robert Angel) Hi, a few posts back someone asked the best way to handle divide by zero.I didn't see that thread, but does it mention NULLIF function? You can apply it to every denominator in your formula, so that it yields NULL in case it evaluates to 0. For example, with t as ( select 1 numerator, 0 denominator from dual ) select numerator/nullif(denominator,0) as div from t; Like Show 0 Likes(0) Actions 2. Re: Handle divide by zero error in SQL BluShadow Oct 11, 2010 10:15 AM (in response to odie_63) odie_63 wrote: Hi, a few posts back someone asked the best way to handle divide by zero.I didn't see that thread, but does it m
shot at without result. —Winston Churchill Run-time errors arise from design faults, coding mistakes, hardware failures,
Pl Sql Exception Handling Examples
and many other sources. Although you cannot anticipate all possible errors, oracle raise exception with message you can plan to handle certain kinds of errors meaningful to your PL/SQL program. With many
Pl Sql Exception When Others
programming languages, unless you disable error checking, a run-time error such as stack overflow or division by zero stops normal processing and returns control to the https://community.oracle.com/thread/1558158 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 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 https://docs.oracle.com/cd/B13789_01/appdev.101/b10807/07_errs.htm 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 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 ra
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 or http://stackoverflow.com/questions/22394968/oracle-pl-sql-handling-division-equal-to-zero-exception posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join http://www.java2s.com/Tutorial/Oracle/0480__PL-SQL-Programming/Catchdividebyzeroexception.htm the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Oracle PL SQL. Handling division equal to zero exception up vote 0 down vote favorite I created a trigger, but it's not working. DECLARE v_width INTEGER; v_height INTEGER := 0; v_area INTEGER := 6; BEGIN v_width := divide by v_area / v_height; DBMS_OUTPUT.PUT_LINE('v_width = ' || v_width); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('Division by zero'); END; / However I always get this error ERROR at line 1: ORA-01476: divisor is equal to zero ORA-06512: at line 7 I can't debug it . I need to handle it in the right way , all exceptions should be handled. oracle plsql share|improve this question edited Mar 14 '14 at 6:08 Nicholas Krasnov 19k42649 asked Mar 14 '14 at 2:21 Borat Sagddiev 842518 divide by zero v_height is set to 0, why are you trying to divide by number 0? –rs. Mar 14 '14 at 2:23 As others have pointed out, v_height is initialized to zero - the code then divides v_area by v_height and a ZERO_DIVIDE exception is thrown. The exception handler should handle ZERO_DIVIDE instead of NO_DATA_FOUND. Was there some way in which v_height was supposed to be set to a "real" value which you just haven't included? You mention a trigger, but the above isn't a trigger. Perhaps you could edit your question and include the real code for the trigger? Share and enjoy. –Bob Jarvis Mar 14 '14 at 11:31 add a comment| 5 Answers 5 active oldest votes up vote 2 down vote v_height INTEGER := 0; v_width := v_area / v_height; v_height is always 0. If you divide by zero you generate an overflow. You need to avoid that. share|improve this answer answered Mar 14 '14 at 2:23 juergen d 125k21130196 add a comment| up vote 2 down vote The best solution is to never divide by zero in the first place, e.g.: DECLARE v_width INTEGER; v_height INTEGER := 0; /*presumably this gets assigned in some other way*/ v_area INTEGER := 6; BEGIN IF v_height > 0 THEN v_width := v_area / v_height; DBMS_OUTPUT.PUT_LINE('v_width = ' || v_width); ELSE DBMS_OUTPUT.put_line('v_width is undetermined'); END IF; END; / Also, don't handle unexpected exceptions with nothing but a debug output - either pro
FunctionsRegular Expressions FunctionsStatistical FunctionsLinear Regression FunctionsPL SQL Data TypesPL SQL StatementsPL SQL OperatorsPL SQL ProgrammingCursorCollectionsFunction Procedure PackagesTriggerSQL PLUS Session EnvironmentSystem Tables Data DictionarySystem PackagesObject OrientedXMLLarge ObjectsTransactionUser PrivilegeCatch 'divide by zero' exception : Exception«PL SQL Programming«Oracle PL/SQL TutorialOracle PL/SQL TutorialPL SQL ProgrammingExceptionSQL> set serveroutput on SQL> SQL> DECLARE 2 Num_a NUMBER := 6; 3 Num_b NUMBER; 4 BEGIN 5 Num_b := 0; 6 Num_a := Num_a / Num_b; 7 Num_b := 7; 8 dbms_output.put_line(' Value of Num_b ' || Num_b); 9 EXCEPTION 10 WHEN ZERO_DIVIDE 11 THEN 12 dbms_output.put_line('Trying to divide by zero'); 13 dbms_output.put_line(' Value of Num_a ' || Num_a); 14 dbms_output.put_line(' Value of Num_b ' || Num_b); 15 END; 16 / Trying to divide by zero Value of Num_a 6 Value of Num_b 0 PL/SQL procedure successfully completed. SQL> 24.14.Exception24.14.1.Exceptions24.14.2.Types of more commonly used Exceptions24.14.3.Exception Handling24.14.4.The NULL Statement24.14.5.ZERO_DIVIDE Exception24.14.6.When the exception occurs, program control passes to the EXCEPTION block where the WHEN clause is examined for a matching exception.24.14.7.Understanding Different Exception Types24.14.8.DUP_VAL_ON_INDEX Exception24.14.9.INVALID_NUMBER Exception24.14.10.Catch 'divide by zero' exception24.14.11.OTHERS Exception24.14.12.Because OTHERS handles all exceptions, you must list it after any specific exceptions in your EXCEPTION block.24.14.13.Declare variables in exception handler24.14.14.Data not found exception24.14.15.Too many rows exceptionjava2s.com |Email:info at java2s.com|© Demo Source and Support. All rights reserved.