Raise Application Error Trigger
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Ora 20001 Oracle Error
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Pragma Exception_init
only takes a minute: Sign up PL SQL trigger using raise_application_error thows error. up vote 0 down vote favorite I have a few things of code I need help debugging but I feel that if I can get one of them running i'll be able to get the rest(oh how i hope). create or replace trigger minimumwage before insert or update sqlerrm on Employee for each row begin if :new.Wage < 7.25 then raise_application_error('-20000,Pay is below Texas minimum wage!'); end if; end; / I'm trying to do this on a table ran on my school's server through sqlplus if that helps. sql plsql sqlplus share|improve this question edited May 8 '13 at 20:46 Goodwine 92711125 asked May 8 '13 at 20:02 user2363828 312 1 What issue are you having? –zimdanen May 8 '13 at 20:05 Warning: Trigger created with compilation errors. was the issue –user2363828 May 8 '13 at 20:53 i fixed all of my errors on my other triggers except for one that involved count overall i'm really happy i posted this question < 3 –user2363828 May 8 '13 at 21:25 1 Run show errors and show us the real error message. –a_horse_with_no_name May 8 '13 at 22:41 add a comment| 2 Answers 2 active oldest votes up vote 2 down vote accepted When you're getting an error, it's always helpful to specify what error. There is a syntax error in the raise_application_error
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Ora-06512
Asked Tom 1. I have a procedure, where in I drop partitions every day and add partitions. My question is about the exception section. Do I have to give specific exception conditions to handle the erros which are possible while dropping and adding partitions, or should I leave it by just giving the when others then exception, or should I leave it alone by not giving the exception section at all. what are the possible erros which http://stackoverflow.com/questions/16449225/pl-sql-trigger-using-raise-application-error-thows-error can occur while trying to create a partition and trying to drop a partition. 2. The use of pragma exception init is very clear, but Why do you have to use a raise application error. Can I just use a regular exception, and raise it when I require to. I dont see the specific use of raise application error. what is the advantage of raise application error over a regular exception which you declare in the exception https://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:1155066278457 section and use it. (the only advantage seems to be that you can assign a number(20001 to 20999) to the error.) correct me if Iam wrong. and we said... 1) A when others is almost always a BUG unless it is immediately followed by a RAISE. The point of an exception block is to catch exceptional conditions you are EXPECTING, handle them gracefully and continue. For example, lets say you have a procedure that will either INSERT a new record or UPDATE an existing one depending on whether or not it exists. You could code: begin insert into t ( columns.... ) values ( values ..... ); exception when dup_val_on_index then -- record already exists, lets update it update t set .... = .... where ....; end; Now, if that was coded: begin insert into t ( columns.... ) values ( values ..... ); exception when dup_val_on_index then -- record already exists, lets update it update t set .... = .... where ....; when others then null; end; that would be a bug. The when others would fire upon some spurious -- un-expected error and the record would be neither added nor updated. It would be skipped. Same with your routines, if you have a when others -- and don't do anything meaningful in it (eg: email yourself a notification that it failed, log a message using utl_file o
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 PrivilegeRaise application error in a trigger http://www.java2s.com/Tutorial/Oracle/0560__Trigger/Raiseapplicationerrorinatriggerincaseofinvalidnewvalue.htm in case of invalid new value : NEW OLD«Trigger«Oracle PL/SQL TutorialOracle PL/SQL TutorialTriggerNEW OLDSQL> SQL> create table t ( x int ); Table created. SQL> SQL> create trigger t_trigger before insert on t for each row 2 begin 3 for x in ( select * 4 from dual raise application 5 where :new.x > 10) 6 loop 7 raise_application_error( -20001, 'check failed' ); 8 end loop; 9 end; 10 / Trigger created. SQL> show errors No errors. SQL> SQL> insert into t select 1 from all_users; 15 rows created. SQL> SQL> set autotrace traceonly statistics SQL> SQL> insert into raise application error t select 1 from all_users; 15 rows created. Statistics ---------------------------------------------------------- 16 recursive calls 15 db block gets 73 consistent gets 0 physical reads 0 redo size 924 bytes sent via SQL*Net to client 947 bytes received via SQL*Net from client 6 SQL*Net roundtrips to/from client 1 sorts (memory) 0 sorts (disk) 15 rows processed SQL> SQL> set autotrace off SQL> SQL> drop table t; Table dropped. SQL> SQL> SQL> 28.3.NEW OLD28.3.1.Old and new value28.3.2.Reference new value with :NEW in a before insert or update trigger28.3.3.Refernece an old value in :OLD after update trigger28.3.4.:old and :new Pseudo-records, Example 128.3.5.:old and :new Pseudo-records, Example 228.3.6.Raise application error in a trigger in case of invalid new value28.3.7.REFERENCING OLD AS old NEW AS new28.3.8.REFERENCING OLD AS old_values NEW AS new_values28.3.9.Output new and old value in a before update triggerjava2s.com |Email:info at java2s.com|© Demo Source and Support. All rights reserved.