Ms Sql Transaction Error Handling
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us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just sql server stored procedure error handling best practices like you, helping each other. Join them; it only takes a minute: Sign up writing a transaction in t-sql and error handling up vote 16 down vote favorite 6 Do u think there is a better way to write a transaction in t-sql? Is there a better approach that improves maintainability and performance of the application sql server try catch transaction that uses this transaction? -- Description: Insert email Receiver under specified subject -- ============================================= ALTER PROCEDURE [Contact].[Receiver_stpInsert] @First_Name nvarchar(30), @Last_Name nvarchar(30), @Email varchar(60), @Subject_Id int AS BEGIN SET NOCOUNT ON; DECLARE @error_num int; BEGIN TRANSACTION INSERT INTO Contact.Receiver(First_Name, Last_Name, Email) VALUES(@First_Name, @Last_Name, @Email); SET @error_num = @@ERROR; IF (@error_num <> 0) BEGIN ROLLBACK; RETURN; END DECLARE @rec_record_id int; SET @rec_record_id = (SELECT Record_Id FROM Contact.Receiver WHERE Email = @Email); SET @error_num = @@ERROR; IF (@error_num <> 0) BEGIN ROLLBACK; RETURN; END INSERT INTO Contact.Receiver_Subject(Receiver_Id, Subject_Id) VALUES(@rec_record_id, @Subject_Id); SET @error_num = @@ERROR; IF (@error_num <> 0) BEGIN ROLLBACK; RETURN; END SET @error_num = @@ERROR; IF (@error_num <> 0) BEGIN ROLLBACK; RETURN; END ELSE BEGIN Commit; END END sql-server tsql share|improve this question asked Jan 24 '10 at 15:37 Costa 1,25373262 add a comment| 6 Answers 6 active oldest votes up vote 29 down vote accepted If you're using SQL 2005 or later, you can use the TRY...CATCH block, like this: BEGIN TRY BEGIN TRANSACTION; INSERT INTO Contact.Re
Errors in SQL Server 2012 03 January 2013Handling Errors in SQL Server 2012The error handling of SQL Server has always been somewhat mysterious. Now at last, the THROW statement has been included in SQL
Sql Try Catch Throw
Server 2012 that, combined with the TRY ... CATCH block, makes error handling far easier. @@trancount in sql server Robert Sheldon explains all. 195 14 Robert Sheldon Since the release of SQL Server 2005, you've been able to handle errors in your
Try Catch In Sql Server Stored Procedure
T-SQL code by including a TRY…CATCH block that controls the flow of your script should an error occur, similar to how procedural languages have traditionally handled errors. The TRY…CATCH block makes it easy to return or audit error-related http://stackoverflow.com/questions/2127558/writing-a-transaction-in-t-sql-and-error-handling data, as well as take other actions. And within the block-specifically, the CATCH portion-you've been able to include a RAISERROR statement in order to re-throw error-related data to the calling application. However, with the release of SQL Server 2012, you now have a replacement for RAISERROR, the THROW statement, which makes it easier than ever to capture the error-related data. In this article, we'll look at the TRY…CATCH block used with both the RAISERROR and https://www.simple-talk.com/sql/database-administration/handling-errors-in-sql-server-2012/ THROW statements. The examples are based on a table I created in the AdventureWorks2012 sample database, on a local instance of SQL Server 2012. Listing 1 shows the T-SQL script I used to create the LastYearSales table. 123456789101112131415161718 USE AdventureWorks2012;GOIF OBJECT_ID('LastYearSales', 'U') IS NOT NULLDROP TABLE LastYearSales;GOSELECTBusinessEntityID AS SalesPersonID,FirstName + ' ' + LastName AS FullName,SalesLastYearINTOLastYearSalesFROMSales.vSalesPersonWHERESalesLastYear > 0;GO Listing 1: Creating the LastYearSales table The script should be fairly straightforward. I use a SELECT…INTO statement to retrieve data from the Sales.vSalesPerson view and insert it into the newly created table. However, to demonstrate how to handle errors, we need to add one more element to our table: a check constraint that ensures the SalesLastYear value is never less than zero. Listing 2 shows the ALTERTABLE statement I used to add the constraint. 123 ALTER TABLE LastYearSalesADD CONSTRAINT ckSalesTotal CHECK (SalesLastYear >= 0);GO Listing 2: Adding a check constraint to the LastYearSales table The constraint makes it easy to generate an error when updating the table. All I have to do is try to add a negative amount to the SalesLastYear column, an amount large enough to cause SQL Server to throw an error. Once we've created our table and added the check constraint, we have the environment we need for the examples in this article. You can just as easily come up with your o
| Tags: Stored Procedures, SQL Server 2005, Transactions, SQL Server 2008 Features, Error Handling This article covers the basics of TRY CATCH error handling in T-SQL introduced in SQL http://www.sqlteam.com/article/handling-sql-server-errors Server 2005. It includes the usage of common functions to return information about http://www.codemag.com/article/0305111 the error and using the TRY CATCH block in stored procedures and transactions. SQL Server uses the following syntax to capture errors in Transact-SQL statements: BEGIN TRY SELECT [First] = 1 SELECT [Second] = 1/0 SELECT [Third] = 3 END TRY BEGIN CATCH PRINT 'An error occurred' END CATCH This returns the following output: First sql server ----------- 1 (1 row(s) affected) Second ----------- (0 row(s) affected) An error occurred A key difference from SQL Server 2000 is that execution is halted when SQL Server encounters an error. At that point execution transfers to the CATCH block. This error isn't returned to the client application or calling program. The TRY CATCH block consumes the error. Error Functions Inside the CATCH block there are a number of in sql server specialized functions to return information about the error. BEGIN TRY SELECT [Second] = 1/0 END TRY BEGIN CATCH SELECT [Error_Line] = ERROR_LINE(), [Error_Number] = ERROR_NUMBER(), [Error_Severity] = ERROR_SEVERITY(), [Error_State] = ERROR_STATE() SELECT [Error_Message] = ERROR_MESSAGE() END CATCH Second ----------- (0 row(s) affected) Error_Line Error_Number Error_Severity Error_State ----------- ------------ -------------- ----------- 2 8134 16 1 (1 row(s) affected) Error_Message --------------------------------------------------- Divide by zero error encountered. (1 row(s) affected) These are the functions you can use inside a CATCH block. These functions all return NULL if they are called from outside a CATCH block. ERROR_NUMBER. The number of the error that occurred. This is similar to @@ERROR except that it will return the same number for the duration of the CATCH block. ERROR_MESSAGE. The complete text of the error message including any substiture parameters such as object names. ERROR_LINE. This is the line number of the batch or stored procedure where the error occured. ERROR_SEVERITY. This is the severity of the error. The CATCH block only fires for errors with severity 11 or higher. Error severities from 11 to 16 are typically user or code errors. Severity levels from 17 to 25 are usually software or hardware errors where processing may not be able to co
UsConsultingConsulting HomeServices & TechnologiesVFP ConversionAzure & Other CloudsEnergy SoftwareContact UsStaffingStaffing HomeLooking for Staff?Looking for Work?Contact UsMagazineMagazine HomeAll IssuesSubscribeMy (Digital) MagazinesWhere is my Magazine?My Subscriber AccountAdvertiseWriteFrameworkFramework HomeGet Started & DocumentationDownloadSupport & ServicesTrainingTraining HomeClassesMentoringState of .NETLunch with CODECode CampsASP.NET MVCDevNet TrainingVFP ConversionVFP Conversion HomeServicesToolsArticlesFox End of LifeContact UsSign in! Advertisement: Handling SQL Server Errors in Nested Procedures By Talmage, Ron Tweet Talmage, Ron Ron Talmage is a mentor and co-founder of Solid Quality Mentors. He is a SQL Server MVP, a PASS Regional Mentor, and current president of the Pacific Northwest SQL Server Users Group. He has been writing white papers and articles on SQL Server since way back when. This article was published in: This article was filed under: VFP and SQL Server SQL Server Data Advertisement: Basic error handling in SQL Server's programming language, Transact-SQL, is straightforward.But when you nest calls to stored procedures, and the procedures have SQL transactions, error handling becomes much more complex. In this article I'll show you some tried-and-true models for how to handle errors in nested stored procedures with transactions.Over the past year I've worked on two projects that needed a strategy for handling errors in stored procedures where the procedures used transactions. My task was to come up with a way to gracefully exit from the stored procedures when non-fatal errors were detected so I could roll back the transaction. I'll present the result of that work in the two models you'll learn about in this article.So how do you handle errors in your code when an error occurs? Unless it encounters a broken connection, SQL Server will return an error to the client application. When you work directly with your own client or middle-tier code, you have much more control over how you handle errors. So you could just issue all your queries to SQL Server discretely from your client code and let SQL Server errors throw you into your error-catching logic, thereby keeping all your error handling in your own calling code. However, encapsulating database-oriented code in SQL Server stored procedures offers a mo