Question

I have a stored procedure that looks something like:

 CREATE PROCEDURE my_procedure    @val_1 INT,   @val_2 INT AS SET NOCOUNT ON; SET XACT_ABORT ON;  BEGIN TRY   BEGIN TRANSACTION;    INSERT INTO table_1(col_1, col_2)   VALUES (@val_1, @val_2);      COMMIT TRANSACTION; END TRY BEGIN CATCH   IF @@TRANCOUNT > 0     ROLLBACK TRANSACTION;    DECLARE     @ERROR_SEVERITY INT,     @ERROR_STATE    INT,     @ERROR_NUMBER   INT,     @ERROR_LINE     INT,     @ERROR_MESSAGE  NVARCHAR(4000);    SELECT     @ERROR_SEVERITY = ERROR_SEVERITY(),     @ERROR_STATE    = ERROR_STATE(),     @ERROR_NUMBER   = ERROR_NUMBER(),     @ERROR_LINE     = ERROR_LINE(),     @ERROR_MESSAGE  = ERROR_MESSAGE();    RAISERROR('Msg %d,   Line %d,   :%s',     @ERROR_SEVERITY,     @ERROR_STATE,     @ERROR_NUMBER,     @ERROR_LINE,     @ERROR_MESSAGE); END CATCH 

When this code is executed through the database, everything runs correctly. When execute through ADO.NET I get back the following error message:

‘The INSERT statement conflicted with the FOREIGN KEY constraint ‘FK_table1_table2‘. The conflict occurred in database ‘my_database‘, table ‘dbo.table_1‘, column ‘col_1‘. Transaction count after EXECUTE indicates that a COMMIT or ROLLBACK TRANSACTION statement is missing. Previous count = 1, current count = 0. ‘

Is this happening because the XACT_ABORT setting is forcing a transaction from ADO.NET to be rolled back? What’s the best way to go about avoiding this error?

Answer 1

you can check XACT_STATE() in your code and then commit or rollback, check it out here: Use XACT_STATE() To Check For Doomed Transactions

basically something like this will blow up

BEGIN TRANSACTION TranA     BEGIN TRY      DECLARE  @cond INT;      SET @cond =  'A';     END TRY     BEGIN CATCH      PRINT 'a'     END CATCH;     COMMIT TRAN TranA 

and when you check xact_state you can control it

BEGIN TRANSACTION TranA     BEGIN TRY      DECLARE  @cond INT;      SET @cond = 'A';     END TRY     BEGIN CATCH      PRINT ERROR_MESSAGE();     END CATCH;     IF XACT_STATE() =0     BEGIN      COMMIT TRAN TranA     END     ELSE     BEGIN      ROLLBACK TRAN TranA     END 

Also take a look at these two must read links Implementing Error Handling with Stored Procedures and Error Handling in SQL Server – a Background.