Error Handling Mechanism In Sql Server 2005
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WTL / STL Managed C++/CLI C# Free Tools Objective-C and Swift Database Hardware & Devices> System Admin Hosting and Servers Java .NET Framework Android iOS Mobile SharePoint Silverlight / WPF Visual Basic Web Development Site Bugs sql server error handling best practices / Suggestions Spam and Abuse Watch features Competitions News The Insider Newsletter The Daily Build Newsletter Newsletter archive Surveys Product Showcase Research Library CodeProject Stuff communitylounge Who's Who Most Valuable Professionals The Lounge The Insider News The Weird & The Wonderful The Soapbox Press Releases Non-English Language > General Indian Topics General Chinese Topics help What is 'CodeProject'? General FAQ Ask a Question Bugs and Suggestions Article Help Forum Site Map sql server error handling nested stored procedures Advertise with us About our Advertising Employment Opportunities About Us Articles » Database » Database » SQL Server ArticleBrowse CodeStatsRevisions (2)Alternatives Comments (25) Add your ownalternative version Tagged as ADO.NETDevDesignDBA Stats 144.8K views55 bookmarked Posted 1 Aug 2009 Overview of Error Handling in SQL Server 2005 Abhijit Jana, 1 Aug 2009 CPOL 4.78 (34 votes) 1 2 3 4 5 4.78/5 - 34 votes4 removedμ 4.53, σa 1.44 [?] Rate this: Please Sign up or sign in to vote. Overview of Error and Exception Handling in SQL Server 2005 using @@Error and Try-Catch Table of Contents Introduction When We Need To Handle Error in SQL Server Error Handling Mechanism Using @@ERROR General Syntax Return Type Sample Example When We Should Use @@Error Using Try...Catch Block General Syntax Sample Example Nested TRY-CATCH Block Try-Catch Block for Transaction Roll Back Future Study History Introduction During development of any application, one of the most common things we need to take care of is Exception and Error handling. Similarly we need to take care of handling error and exception while designing our database like inside stored procedure. In SQL Server 2005, there are some beautiful features available using which we can handle the error. When We Need To Handle Error in SQL Server Generally a developer trie
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Sql 2005 Try Catch
other users.Report inappropriate content using these instructions. Wiki > TechNet Articles > Structured Error Handling Mechanism in SQL Server 2012 Structured Error Handling Mechanism in SQL Server 2012 Article History Structured Error Handling Mechanism in http://www.codeproject.com/Articles/38650/Overview-of-Error-Handling-in-SQL-Server SQL Server 2012 The goal of this article is to provide a simple and easy to use error handling mechanism with minimum complexity. This article is completely compatible with MS SQL SERVER 2012 and 2014. Table of Contents Problem definitionIntroductionSolution Is there any structured Error Handling mechanism in SQL Server?Will all statements in TRY block try to execute?Does the CATCH part automatically handle the errors?Is it a good idea http://social.technet.microsoft.com/wiki/contents/articles/20002.structured-error-handling-mechanism-in-sql-server-2012.aspx to use a general procedure as a modular Error Handler routine?What are the benefits of THROW when we have RAISERROR? Correct line number of the error!Easy to useComplete terminationIndependence of sys.messages I want to check a condition in the TRY block. How can I control the flow of execution and raise the error?Does the CATCH part automatically rollback the statements within the TRY part?Can someone use TRANSACTION in the TRY/CATCH block? XACT_ABORT@@TRANCOUNT ConclusionSee Also Related Wiki ArticlesError Handling in SQL Server 2005 and Later Other Languages Problem definition There are many questions in MSDN forum and other Internet communities about Error Handling in SQL Server. There are several issues as presented in the Table of Contents, above. Introduction There are many articles written by the best experts in this context and there are complete references about Error Handling in SQL Server. The goal of this article is to provide a simple and easy to use error handling mechanism with minimum complexity. Therefore I will try to address this topic from a problem solving approach and particularly in SQL Server 2012 version. So the road map of this article is to cover the above questions as well as providing a step by step tutorial to desi
This part is also available in a Spanish translation by Geovanny Hernandez. Introduction This article is the first in a series of three about http://www.sommarskog.se/error_handling/Part1.html error and transaction handling in SQL Server. The aim of this first https://www.mssqltips.com/sqlservertip/1027/sql-server-2005-try-and-catch-exception-handling/ article is to give you a jumpstart with error handling by showing you a basic pattern which is good for the main bulk of your code. This part is written with the innocent and inexperienced reader in mind, why I am intentionally silent on many details. The purpose here is error handling to tell you how without dwelling much on why. If you take my words for your truth, you may prefer to only read this part and save the other two for a later point in your career. On the other hand, if you question my guidelines, you certainly need to read the other two parts, where I go into much deeper detail in sql server exploring the very confusing world of error and transaction handling in SQL Server. Parts Two and Three, as well as the three appendixes, are directed towards readers with a more general programming experience, although necessarily not with SQL Server. This first article is short; Parts Two and Three are considerably longer. Table of Contents Introduction Index of All Error-Handling Articles Why Error Handling? Essential Commands TRY-CATCH SET XACT_ABORT ON General Pattern for Error Handling Three Ways to Reraise the Error Using error_handler_sp Using ;THROW Using SqlEventLog Final Remarks End of Part One Revision History Index of All Error-Handling Articles Here follows a list of all articles in this series: Part One - Jumpstart Error Handling (this article). Part Two - Commands and Mechanisms. Part Three - Implementation. Appendix 1 - Linked Servers. (Extends Part Two.) Appendix 2 - CLR. (Extends both Parts Two and Three.) Appendix 3 - Service Broker. (Extends Part Three.) All the articles above are for SQL2005 and later. For those who still are on SQL2000, there are two older articles: Error Handling in SQL Server 2000 – a Background. Implem
1 | 2 | 3 | More > Error Handling Problem Error handling in previous versions of SQL Server was not the easiest thing to do. You could test the value of @@ERROR or check @@ROWCOUNT, but if the error was a fatal error you did not have a lot of options. Solution With SQL Server 2005, new error handling has been introduced with the TRY...CATCH processing. Basically what happens is when an error occurs the processing in the TRY block stops and processing is then picked up in the CATCH block. The following illustrates a simple example of how this is done: Step Code Output 1 CREATE PROCEDURE usp_ExampleProcAS SELECT * FROM NonexistentTable;GO Command(s) completed successfully. 2 EXECUTE usp_ExampleProc Msg 208, Level 16, State 1, Procedure usp_ExampleProc, Line 3Invalid object name 'NonexistentTable'. (Note: Processing Stops) 3 BEGIN TRY EXECUTE usp_ExampleProcEND TRYBEGIN CATCH SELECT ERROR_NUMBER() as ErrorNumber, ERROR_MESSAGE() as ErrorMessage;END CATCH; 208 Invalid object name 'NonexistentTable'. (Note: Processing Continues) 4 BEGIN TRY EXECUTE usp_ExampleProcEND TRYBEGIN CATCHEND CATCH; Command(s) completed successfully. (Note: Processing Continues) As you can see from the above code and output that when we create the stored procedure for a non-existent table in Step 1 the procedure creates without a problem. If we run the stored procedure using the code in Step 2, we get an error message that the object does not exist. If we run the stored procedure using the code in Step 3, the error is sent to the CATCH block and an error message is returned. At this point processing can continue without a problem. To further illustrate this in Step 4 the stored procedure is run, the error is caught in the CATCH block, but we are not doing anything to process the error. Normally you would have something happen, but this shows that you don't have to have any code in the CATCH block. The values that can be retrieved from the error are also much more detailed, then what you could get with previous versions of SQL Server. Below is a list of the data that can be retrieved when an error occurs. ERROR_NUMBER() - returns the number of the error. ERROR_SEVERITY() - returns the severity. ERROR_STATE() - returns the error state number. ERROR_PROCEDURE() - returns the name of the stored procedure or trigger where the error occurred. ERROR_LINE() - returns the line number inside the routine that caused the error. ERROR_MESSAGE() - returns the complete text of the error m