Owb Error Handling
as DML error logging. This chapter contains the following topics: "Inspecting Error Logs in Oracle Warehouse Builder" "Determining the Operators that Caused Errors in Mappings" "Using DML Error Logging" etl error handling best practice "Troubleshooting the ETL Process" Inspecting Error Logs in Oracle Warehouse Builder While etl error handling strategy working with Oracle Warehouse Builder, the designers must access log files and check on different types of errors. This section outlines all the different types of error messages that are logged by Oracle Warehouse Builder and how to access them. Oracle Warehouse Builder logs the following types of errors when you perform different operations: "Troubleshooting Validation Errors" "Troubleshooting Generation Errors" "Troubleshooting Deployment and Execution Errors" "Troubleshooting Name and Address Server Errors" This section shows you how to retrieve error logs after performing different operations in Oracle Warehouse Builder. Troubleshooting Validation Errors In Oracle Warehouse Builder, you can validate all objects by selecting the objects from the Projects Navigator and then selecting Validate from the File menu. After the validation is complete, the validation messages are displayed in the Log window. Figure 15-1 displays the validation messages in a new tab of the Message Log window. Figure 15-1 Validation Error Messages Description of "Figure 15-1 Validation Error Messages" You can also validate mappings from the Mapping Editor by selecting Mapping, then Validate. The validation messages and errors are displayed in the Validation Results window. In the validation results, expand the node displaying the object name and then the Validation node. The validation errors, if any are displayed. Double-click a validation message to display the detailed error message in a message editor window. Oracle Warehouse Builder saves the last validation messages for each previously validated object. You can access these messages at any time by selecting the object from the console tree in the Projects Navigator, selecting View from the menu bar, and then clicking Validation Messages. The messages are displayed in the Validation Results window. Troubleshooting Generation Errors After you generate scripts for Oracle Warehouse Builder objects, the Log window displays the generation results and errors. Double-click an error message in the Log window to
(Error Logging Table and Data Rules) Owb - Error Handling (Error Logging Table and Data Rules) Table of Contents 1 - About 2 - Articles Related 3 - Enable error logging 4 - With data rule 4.1 - Logging error table 4.2 - Error Table Definition 4.3 - When the error table logging is created ? 4.4 - Performance 5 - Without data rule 6 - Reference 1 - About Error logging enables the processing of DML statements to continue despite errors being encountered during the statement execution. DML error logging is supported for SQL statements such as INSERT, UPDATE, MERGE, and multi-table insert. It is useful in long-running, bulk DML statements - for example processing 1 million https://docs.oracle.com/cd/E11882_01/owb.112/e10935/errors_trouble.htm records and 10 fail, with DML error logging all good records can be committed and the 10 error rows recorded in an error table. Until OWB 10.2.0.3 this was only possible with row based mapping code, now it is possible in set based mode also. Warehouse Builder provides the Oracle - PL/SQL - DML error logging database features. DML error logging is : supported only for target schemas created in Oracle DB 10g R2 or later. work http://gerardnico.com/wiki/owb/error_handling for tables, views, and materialized views used in set-based PL/SQL mappings. See the DML error logging article for more information on this plsql features. 2 - Articles Related Application - Fault HandlingOWB - How to implement and manage data rule in a mapping for a table ?OWB - Error Table PropertiesOWB - How to debug a Mapping ?OWB - How to load a fact table for a data quality cube ?Oracle Warehouse BuilderOWB - Table 3 - Enable error logging The best way to turn on this feature is to add a OWB - Data Rules. See this article for more detail : OWB - How to implement and manage data rule in a mapping for a table ? To turn on this features without OWB - Data Rules, you have to fill the error table name property parameters for DML Error logging in the Error Table Properties from the table operator. Case Without Error table name With Error table name Without data rule Not Enable Enable With data rule Enable with the shadow table name table_name_err Enable If you modify the error table name for a data object (using the Error table name property), you must synchronize all the operators bound to this data object
4 - With data rule 4.1 - Logging error table When the error logging table is enabled ( See OWB -Oracle 10gR2 that lets you add a LOG ERRORS clause to your DML statement, so that DML operations that would normally fail due to a http://www.rittmanmead.com/blog/2008/01/owb11g-dml-error-logging-and-data-rules/ constraint violation will instead move the erroneous rows into a log table and complete http://www.orafaq.com/forum/t/98479/ the load as normal. DML Error Logging is particulary interesting to data warehouse people as it means we can safely load our tables using direct path INSERTS rather than having to write complex PL/SQL to catch any exceptions. I wrote about DML Error Logging in a blog post last year and in this error handling article for Oracle Magazine. One of the drawbacks in the 10gR2 implementation of DML Error Logging was when you tried to use it in conjunction with conventional path inserts, which for whatever reason caused the statement to run a lot slower than if you didn't include the LOG ERRORS clause, and so I was interested to find out whether that issue still occured with 11g. Looking back at etl error handling the article and in particular the blog post, even direct path loads using LOG ERRORS came in a little bit slower than writing your own exception handler in PL/SQL, so I was also interested to know whether OWB mappings that used DML Error Logging were faster or slower than mappings that used data rules, which switch the mapping over to row-based mode and load the table using PL/SQL. To start off then, I thought I'd recreate the tests used in the Oracle Magazine article and see how the timings compare when using the 11g version of Oracle rather than 10gR2. I wasn't really looking at absolute times - I'm running Oracle on a different machine to the one I used then - but instead at relative times between the running inserts using conventional path and direct path inserts using, and then not using, the LOG ERRORS clause, and to compare this with a PL/SQL row-by-row insert using the SAVE EXCEPTIONS clause. I started off by re-creating the tables in the two articles and ran a direct path insert using DML Error Logging: SQL> insert /*+ APPEND */ 2 into salestargetcon 3 select * 4 from sales_src 5 log errors 6
in OWB [message #304617] Wed, 05 March 2008 18:53 pavan27 Messages: 50Registered: December 2006 Location: bangalore Member Hi, how do i handle error in owb. when i run the etl process (inserting records) if any error's are occur i need to send it any log file or a table. after completion of etl process i have to re run the etl process for failure records. simply keep track of failure records in owb. how can i do that. regards, pavan Report message to a moderator Previous Topic: invoke SQL*Loader Next Topic: error table name in the properties of target table Goto Forum: - SQL & PL/SQLSQL & PL/SQLClient Tools- RDBMS ServerServer AdministrationBackup & RecoveryPerformance TuningSecurityNetworking and GatewaysEnterprise ManagerServer Utilities- Server OptionsRAC & FailsafeData GuardReplicationStreams & AQSpatialText & interMedia- Developer & ProgrammerApplication Express, ORDS & MOD_PLSQLFormsReports & DiscovererDesignerJDeveloper, Java & XMLWarehouse BuilderPrecompilers, OCI & OCCI- Fusion Middleware & Colab SuiteWeblogic & Application ServerBusiness IntelligenceWebCenter Suite & PortalCollaboration & Content ManagementSOA Suite, BPEL and OWSM- ApplicationsOracle Fusion Apps & E-Business SuitePeopleSoft, JD Edwards & SiebelPrimaveraOther Application Suites- InfrastructureHardwareUnixLinuxWindowsOther Operating Systems- Open SourceProgramming InterfacesMySQL- OtherGeneralTraining & CertificationMarketplaceCommunity HangoutSuggestions & FeedbackTest- Non-English ForumsArabicDutchFrenchGermanJapanesePortugueseRussianSpanish -=] Back to Top [=- [ Syndicate this forum (XML) ] [ ] Current Time: Sun Oct 23 16:35:31 CDT 2016 Total time taken to generate the page: 0.04562 seconds .:: Forum Home :: Blogger Home :: Wiki Home :: Contact :: Privacy ::.