Is there any way to clear out the exception from a previous Try/Catch block if I am nesting another Try/Catch block within it. I am executing a SQL Command and based on the Error number coming back decide whether or not to execute various other Sql commands. Now the Outer exception seems to be taking precedence over the Inner try block, and even though the code is stepped through for the inner try block it is never executed due to the Parent Exception. Is there any way to clear the exception received from the outer Try block? Here is a snippet of code:
HI, i'm trying to execute some sql using the Try.. Catch blocks.
Following code does not execute in Catch Block
Begin begin try insert into dbo.Test values (1,'aaa') -- here we are inserting int value in identity field... END TRY Begin catch PRINT 'TEST' SELECT ERROR_NUMBER() AS ErrorNumber, ERROR_SEVERITY() AS ErrorSeverity, ERROR_STATE() as ErrorState, ERROR_PROCEDURE() as ErrorProcedure, ERROR_LINE() as ErrorLine, ERROR_MESSAGE() as ErrorMessage; END Catch End GO
Whereas the following block works fine and the Catch block executes.
Begin begin try Select 1/0 --This causes an error. END TRY Begin catch PRINT 'TEST' SELECT ERROR_NUMBER() AS ErrorNumber, ERROR_SEVERITY() AS ErrorSeverity, ERROR_STATE() as ErrorState, ERROR_PROCEDURE() as ErrorProcedure, ERROR_LINE() as ErrorLine, ERROR_MESSAGE() as ErrorMessage; END Catch End GO
one of our study group members noticed a strange behavior and has the following question. Any thoughts are appreciated. I am unable to understand as to why the CATCH block is not executed when an INSERT is made On table T3 which is dropped after the first transaction.
The severity of Insert into t3 values (3) is Msg 208, Level 16, State 1, Line 2 Invalid object name 't3'.
BOL says TRY€¦CATCH constructs do not trap the following conditions: Warnings or informational messages with a severity of 10 or lower. Errors with severity of 20 or higher that terminate the SQL Server Database Engine task processing for the session. If an error occurs with severity of 20 or higher and the database connection is not disrupted, TRY€¦CATCH will handle the error.
Here is the script.
use tempdb go
create table t1 (a int) create table t2 (b int) create table t3 (c int)
Begin tran
Insert into t1 values (1) Insert into t2 values (2) Insert into t3 values (3)
IF @@error <> 0 Rollback tran else commit tran -------------------------------------------------------------
Select * from t1 Select * from t2 Select * from t3 -------------------------------------------------------------
Insert into t1 values (1) Insert into t2 values (2)
save tran insertNow
Insert into t3 values (3) commit tran insertNow End try
Begin Catch
IF (XACT_STATE()) = -1 BEGIN PRINT 'The transaction is in an uncommittable state.' + ' Rolling back transaction.' ROLLBACK TRANSACTION insertNow END;
-- Test if the transaction is active and valid. IF (XACT_STATE()) = 1 BEGIN PRINT 'The transaction is committable.' + ' Committing transaction.' COMMIT TRANSACTION insertNow END
I guess this is a common problem because I ran into a lot of threads concerning the matter. Unfortunately, none of them helped my situation.I am throw a RAISERROR() in my sql and my vb.net try catch block is not detecting an error. SELECT '3' RAISERROR('testerror',10,5) Dim con As New SqlConnection Dim _sqlcommand As New SqlCommand con = New SqlConnection(Spiritopedia.Web.Globals.Settings.General.ConnectionString) _sqlcommand.CommandType = Data.CommandType.StoredProcedure _sqlcommand.CommandText = "TestFunction" _sqlcommand.Connection = con
'The value to be returned Dim value As New Object 'Execute the command making sure the connection gets closed in the end
Try
'Open the connection of the command _sqlcommand.Connection.Open() 'Execute the command and get the number of affected rows 'value = _sqlcommand.ExecuteScalar().ToString()
value = _sqlcommand.ExecuteScalar()
Catch ex As SqlException Throw ex Finally
'Close the connection _sqlcommand.Connection.Close() End Try
I encountered a werid bug that I can't figure it out in my stored procedure.Here's some sample code the can represent the scenario
Create Proc sp_test @DeptID Int as Begin Declare @i int=0 Declare @Count int=(Select count(*) from Total) while(@i<@Count)
[code]....
In the above code Total is a table that has employee name and its department ID and row_number info.The above code should list all employee info that belongs to one DEpt.but after I placed a try catch block the select statement returns no records.If I removed the try catch block it behaves correct.For example If three records reside in the Total table for a certain DeptID.
I expect the outPut will be Name age salary Mike 35 $60006 Tom 50 $75000 Frank 55 $120000
Can someone please help me figure out why this trigger causes a "Timeout expired" error after the first try? What I'm trying to do is create an incrementing default value for the projectid field. I have a unique index on the field and for some reason, the INSERT statement won't run inside the TRY block, even though the WHILE loop creates a unique id. It's acting like the loop isn't incrementing, but the PRINT statements prove that the loop does work, but the INSERT statement doesn't work after a succesful first try (i.e. NEWPROJ-1 is inserted correctlly). Anyways, any help would be appreciated.
Code Snippet GO /****** Object: Trigger [Projects].[CreateID] Script Date: 05/25/2008 14:16:32 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO
ALTER TRIGGER [Projects].[CreateID] ON [Projects].[tblProjects] INSTEAD OF INSERT AS DECLARE @projectid varchar(25) DECLARE @projectname varchar(100) DECLARE @projectepskey int DECLARE @maxcount int SELECT @maxcount = 1
BEGIN SET NOCOUNT ON; SELECT @projectname = projectname FROM inserted SELECT @projectepskey = projectepskey FROM inserted
SELECT projectid FROM Projects.tblProjects WHERE (projectid = 'NEWPROJ')
IF (@@RowCount = 0) BEGIN SELECT @projectid = 'NEWPROJ' INSERT INTO Projects.tblProjects(projectepskey, projectid, projectname) VALUES (@projectepskey, @projectid, @projectname) END ELSE BEGIN WHILE @maxcount >= 1 BEGIN
BEGIN TRY SELECT @projectid = 'NEWPROJ-' + CONVERT(varchar, @maxcount) PRINT @projectid INSERT INTO Projects.tblProjects(projectepskey, projectid, projectname) VALUES (@projectepskey, @projectid, @projectname) BREAK END TRY BEGIN CATCH SELECT @maxcount = @maxcount + 1 PRINT CONVERT(varchar, @maxcount) CONTINUE END CATCH; END END END
I have a Stored Proc which populates a table and then uses BCP to output the table into a flat file and lastly ftp the file out to a remote site.
I'm trying to update the error handling as I first wrote this script on SQL2000 and it has now moved to SQL2008r2. The stored proc looks something like this:
BEGIN TRY BEGIN TRANSACTION <A whole bunch of inserts and updates> COMMIT TRANSACTION END TRY BEGIN CATCH <Error handling> ROLLBACK TRANSACTION END CATCH BEGIN <xp_cmdshell, BCP, FTP stuff> END
What I need to do is jump to the end of the script if an error invokes the CATCH block, so the xp_cmdshell stuff is not exicuted. Can I simply put a GOTO statement to take it to the end in the CATCH block, or do I have to set a variable in the CATCH block then test the variable outside the CATCH block or indeed is there a better way to simply terminate the script following the ROLLBACK?
When a catchable error occurs in a try block, control is passed to theassociated catch block. While I am then able to examine properties ofthe error using such functions as ERROR_NUMBER() in the catch block,the error-logging scheme used in my company requires that the actualerror be raised so that it can be picked up by components in the nexttier. I appear to be unable to do that -- I can raise some other errorthat has all of the properties of the original except the error number.For example, division by zero raises error 8134. If the code thatproduces that error is enclosed in a try block, I seem to be unable toraise that error from the catch block. Of course, if I never used thetry block to begin with this wouldn't be a problem, but then wewouldn't have the advantages of this structure as it applies to othererrors, some of which we may wish to handle differently. WhileTry-Catch looks great as a way of allowing us to handle errors in acustomized way and to avoid having all errors be passed up to ourmiddle tier, it seems that we are unable to pass ANY such errorsforward, and that is a problem for us, too. Is my understanding ofthis situation correct, or is there some way around this problem, e.g.,is there any way I could have raised error 8134, in the above example?Thanks.
I wanted to handle with the deadlock issue by using Try/Catch, the the try/Catch block cannot capture this kind of deadlock:
code in connection1: declare @i int set @i = 0 WHILE (1=1) begin ALTER PARTITION SCHEME PartationedTableA NEXT USED [PRIMARY] ALTER PARTITION FUNCTION PartationedTableA () SPLIT RANGE (14661) ALTER PARTITION FUNCTION PartationedTableA () MERGE RANGE (14661) end
code in connection2: declare @rowcount int while 1=1 begin
begin try select @rowcount =count(0) from PartationedTableA where col1=50021 end try begin catch print error_number() end catch end
run them at the same time in SSMS, the code in cn2 would get a error in several seconds: Msg 1205, Level 13, State 55, Line 10 Transaction (Process ID 52) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
I tried using TRY/CATCH to capture anoter deadlock whose Error_State is 45, and it works fine.
Does anybody know why Try/Catch cannot capture my deadlock, does the different state make senses?
I was just debugging a stored procedure visual studio and I was surprised with what I was watching.
I'm running SQL 2005 and visual studio 2005. I have a set of nested try/catch blocks.
It fails on the first try and drops into the catch block just as it should. Within the catch block a dynamic sql statement is created. A try block begins and attempts to exec(@sql). It then drops to the catch block. However, I copy the statement into SQL Management Studio and it runs without error everytime.
Why is it dropping into the catch block? Logically it should just complete executing the statement continue without going into the catch block.
Do I have to reset the raiserror values between try blocks or something?
All of a sudden my application started crashing when trying execute dml statements on sql server mobile database (sdf file). Frustating thing is that whole application crashes without any error message. this happens for all kinds for DML statement but not all the time. Sometimes it would fail for delete statement such as delete from table; or for insert into statement
my problem catch does not catch the error. There is no way to find out teh what is causing this error
SqlCeConnection sqlcon = new SqlCeConnection("
Data Source = '\Program Files\HISSymbol\HISSymboldb.sdf';"
);
SqlCeCommand sqlcmd = new SqlCeCommand();
sqlcmd.CommandText = Insert into company('AA', 'Lower Plenty Hotel');
sqlcmd.Connection = sqlcon;
SqlCeDataReader sqldr = null;
try
{
sqlcon.Open();
//use nonquery if result is not needed
sqlcmd.ExecuteNonQuery(); // application crashes here
}
catch (Exception e)
{
base.myErrorMsg = e.ToString();
}
finally
{
if (sqlcon != null)
{
if (sqlcon.State != System.Data.ConnectionState.Closed)
Hello, I have stored procedure that when executed it will check to see if a given name is found in the database, if the name is found, I would like to have it continue on to do its work, however if the name is not found, I would like it to raise an error and then stop execution at that point, however, the way it is currently working is, if the name is not found, it catches the error, raises it and then continues on and tries to do its work, which then it bombs out because it can't. I wasn't sure if there was a way to stop the execution of the procedure in the catch statement. I don't think I want to raise the error level to 20-25 because I don't want to drop the connection to the database per say, I just want to halt execution.
Here is a simple example of what I have:
Code Snippet begin try
if not exists (select * from sys.database_principals where [name] = 'flea')
raiserror('flea not found', 16, 1) end try begin catch
@ErrorMessage = error_message(), @ErrorSeverity = error_severity(); raiserror(@ErrorMessage, @ErrorSeverity, 1); end catch go
begin
print 'hello world' end
At this point, if the user name (flea) is not found, I don't want it ever to get to the point of 'Hello World', I would like the error raised and the procedure to exit at this point. Any advice would be appreciated on how to best handle my situation!
Protected Sub detailsview1_ItemDeleting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewDeleteEventArgs) Dim label2 As Label = CType(detailsview1.FindControl("label2"), Label) Try
Catch sqlEx As SqlClient.SqlException If sqlEx.Message.Contains("DELETE statement conflicted with COLUMN REFERENCE") Then label2.Visible = True label2.Text = "You cannot delete this Agent Type as it has a call weighting assigned to it, remove the weightings before you try to delete it" e.Cancel = True End If End Try End Sub Hi, Im using vb.net sql2005 and visual studio 2005 I have 2 tables which have a foregin key relationship. When i try to delete information from within one of my aspx pages it rightly comes up with an application errror, something along the lines of DELETE statement conflicted with COLUMN REFERENCE constraint 'FK_callScore_agentType'. The conflict occurred in database 'Merlin_####', table 'callScores', column 'typeID'.The statement has been terminated. I have looked around and can see people talking about using a try catch excpetion however i need to know how id implement this using the detailsview1_itemdeleting event. Ive never used this before and havent found a decent tutorial to help.So far i have this code but im stuck as im not sure that this is correct but more importantly what i put in the try method. Protected Sub detailsview1_ItemDeleting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewDeleteEventArgs) Dim label2 As Label = CType(detailsview1.FindControl("label2"), Label) Try (WHAT GOES HERE) Catch sqlEx As SqlClient.SqlException If sqlEx.Message.Contains("DELETE statement conflicted with COLUMN REFERENCE") Then label2.Visible = True label2.Text = "You cannot delete this Agent Type as it has a call weighting assigned to it, remove the weightings before you try to delete it" e.Cancel = True End If End Try End Sub Your help would be greatly appreciated
Is there something like exception handling in T-SQL?For example, how to catch an error of convertion at thissample:CREATE PROCEDURE SP@param VARCHAR(50)AS BEGINDELCARE @var INT-- try {SET @var = CONVERT( int, @param)-- } catch (error#245) {-- handle an error right here-- }ENDIt must be invisible for a caller of SP if something wrong inside SP.*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
I am running into a null reference exception on replication with SQL Server 2005 Compact Edition. The problem occurs at repl.synchronize(). Even though the statement is inside a try-catch block, the exception is not caught, and the application quits.
Device O/S: Windows Mobile 5.0 v 5.1.195 Build 14957.2.3.1 Hardware: Dell Axim X51v, Intel PXA270 Database: SQL 2005 SP2 (no post SP2-patches)
Exception shows as "an unexpected error has occured in AppName.exe. Select Quit and then restart this program, or select Details for more information." Details: .. at NullReferenceException at AppName.Form1.Synch() .. at .... (various lines) .. at AppName.Form1.Main()
The application is based on the tutorial (Creating a Mobile Application with SQL Server Compact Edition) at http://msdn2.microsoft.com/en-us/library/ms171908.aspx.
The application was successfully working initially but then stopped working on replication after some minor modifications which were not related to the replication code, e.g. adding some buttons to the form.
Three things are puzzling me here..
1. The fact that this is a NullReferenceException and not a SqlCeException 2. Why the try-catch block doesn't work 3. Why the exception occurs
I am using sql2k5. I just wanted to throw an error from stored procedure with some message to C# to rollback my transaction. Here is how i wnated to do ( in sequence )
C# ===== Open a connection Begin the transaction Execute the command
In the Stored Proc =========== do multiple operations one by one if error stop processing further Throw the error C# ======== if exception rollback the transaction else commit the transaction
I have tried using raise error in stored proc but never thrown exception
Can any one let me know how to achieve this scenario??
I'm having trouble with a Script Component in a data flow task. I have code that does a SqlCommand.ExecuteReader() call that throws an 'Object reference not set to an instance of an object' error. Thing is, the SqlCommand.ExecuteReader() call is already inside a Try..Catch block. Essentially I have two questions regarding this error:
a) Why doesn't my Catch block catch the exception? b) I've made sure that my SqlCommand object and the SqlConnection property that it uses are properly instantiated, and the query is correct. Any ideas on why it is throwing that exception?
I have the following stored procedure to test scope of variables
alter proc updatePrereq @pcntr int, @pmax int as begin
[Code] ....
In the above script @i is declare in the if block only when the @pcntr value is 1. Assume the above stored procedure is called 5 times from this script
declare @z int set @z = 1 declare @max int set @max = 5 while @z <= @max begin exec dbo.updatePrereq @z, @max set @z = @z + 1 end go
As i said earlier `@i` variable exists only when `@pcntr` is `1`. Therefore when i call the stored procedure for the second time and so forth the control cannot enter the if block therefore @i variable wouldn't even exist. But the script prints the value in `@i` in each iteration, How comes this is possible should it throw an error saying `@i` variable does not exist when `@pcntr` values is greater than `1`?
Greetings everyone, I am attempting to build my first application using Microsofts Sql databases. It is a Windows Mobile application so I am using Sql Server Compact 3.5 with Visual Studio 2008 Beta 2. When I try and insert a new row into one of my tables, the app throws the error message shown in the title of this topic. '((System.Exception)($exception)).Message' threw an exception of type 'System.NotSupportedException'
My table has 4 columns (i have since changed my FavoriteAccount datatype from bit to Integer) http://i85.photobucket.com/albums/k71/Scionwest/table.jpg
Account type will either be "Checking" or "Savings" when a new row is added, the user will select what they want from a combo box.
Next is a snap shot of my startup form. http://i85.photobucket.com/albums/k71/Scionwest/form.jpg
Where it says "Favorite Account: None" in the top panel, I am using a link label. When a user clicks "None" it will go to a account creation wizard, and set the first account as it's primary/favorite. As more accounts are added the user can select which will be his/her primary/favorite. For now I am just creating a sample account when the label is clicked in an attempt to get something working. Below is the code used.
account.FavoriteAccount = 1;//datatype is an integer, I have changed it since I took the screenshot.
financesDataSet.BankAccount.Rows.Add(account); //The next three lines where added while I was trying to get this to work. //I don't know if I really need them or not, I receive the error regardless if these are here or not.
catch (global:ystem.InvalidCastException e) { //Stops at the following line, this error was caused by 'if (this.financesDataSet.BankAccount[num].FavoriteAccount == 1)'
throw new global:ystem.Data.StrongTypingException("The value for column 'FavoriteAccount' in table 'BankAccount' is DBNull.", e);
I have no idea what I am doing wrong, all of the code I used I retreived from Microsofts help documentation included with VS2008. I have tried used my TableAdapter.Insert() method and it still failed when it got to
if (this.financesDataSet.BankAccount[num].FavoriteAccount == 1)
in my refreshDatabase() method it still failed.
When I look, the data has been added into the database, it's just when I try to retreive it now, it bails on me. Am I retreiving the information wrong?
When running the package in VisualStudio it runs properly, but if I let this package run as part of an SQL-Server Agent job, I got the message "The script threw an exception: Exception of type 'System.OutOfMemoryException' was thrown." on my log and the package ends up with an error.
Both times it is exactly the same package on the same server, so I don't know how the debug or even if there is anything I need to debug?
We have a production sql server V6.5 sp5a (running on NT 4.0 sp3) that has a tempdb that is fulling up about every two weeks. (The log to tempdb is okay, it is not filling up). Tempdb is defined as 400 MB. I have been reading about "The two most common db errors"; 1) The db log ran out of space and 2) The db ran out of space. We are receiving "The db ran out of space." Once tempdb gets near full is there anyway to clear tempdb without rebooting the nt server? Is there a stored procedure that can be scheduled to free up tempdb?
My books tell me the tempdb is used for creating temporary tables or storing temporary information. For example, a temporary table in a stored procedure or sql may create a temporary work table as a result of a query with a 'group by' or 'order by' clause. If these tables are temporary why don't sql release them or free up the space used by tempdb?
We have a SQL Server 6.5 with SP5a installed and are having problems with the Transaction log not clearing every night when a scheduled backup takes place. Is there anyway to debug this?
The Scheduled task that is run is "DUMP DATABASE DBSALES TO DBSALESBK with INIT DUMP TRANSACTION DBSALES WITH TRUNCATE_ONLY DUMP DATABASE DISTRIBUTION TO DSBK WITH INIT DUMP TRANSACTION DISTRIBUTION WITH TRUNCATE_ONLY"
I have also run on it DBCC Checktable(Syslogs) but it all seems fine. Any help would be appreciated.
I'd like to ask you what means the term "database clearing", if such a concept exists in the Database Theory. Maybe this is not directly related to SQL Server but any help would be very appreciated. So please anybody who have an idea of what this could mean is welcome to reply here
Thank you very much in advance. With best regards, Sorin
I have entered some temporary values in a table located in an SQL database, to test a project to see if it was working. Now I want to remove the values so that later, the program I have created will be capable of using the table for it's true purpose. However, when I try to delete the values located there, I receive an error message. How can I clear the table?
In SQL SERVER 2000, there is a command DBCC OutputBuffer which returns the current output buffer in hexadecimal and ASCII format for the specified system process ID.
Is it so that everytime we execute a stored procedure the contents of the outputbuffer are automatically cleared so that the new contents are inserted into the outputbuffer ?
If it is not cleared then how can we clear this outputbuffer.
1. Is there a way to clear all records in a table from within a store procedure? (Instead of having to go into the table and manually selecting all rows and deleting them that way.)
2. I want to sort a list of records so that the only one left are the ones with just single words in. So I have used
WHERE SearchText LIKE '% %'
to remove the cells with spaces in, but I need to be able to remove the ones with punctuation too. Is there an easy way to do this?
We have been testing a new vendor_purchased application and are now running some month-end processes/jobs now. One of the processes that we kicked off stopped when a 2gb tempdb filled up with only 5mb or so remaini g. In reviewing what happened, I noticed that tempdb is in the process of clearing itself out slowly when we restarted the process. The database has 80% of its disk space remaining and the transaction log has also 75% remaining.
My questions are:
1) Although I don't think so, is there nay way of speeding up the process of tempdb clearing out the data in it?
2) We will need to examine what sql code the vendor has used that caused this to happen. Aside from group by and order by, if there are a lot of 'select into' code, what alternatives do we have?
Any information that can be provided will be fine. THanks in advance.
Having issues with a table clearing out properly which is causing problems in the program.
By design there should only be one row in this table which updates with the most current record. However on this one system the table does not clear/update like it is supposed to, and instead starts adding multiple rows.
I have tried truncating the table but the problem does not resolve itself. Does anyone have any ideas as to why this might be happening?
Hi everyone, I have a question that I believe should be simple to answer yet I cannot find the answer anywhere. I am trying to make it possible for my report to clear the input box whenever the report is run or when anything in a dropdown list is selected. The reason why I want this is because my report has a dropdown list that inputs date ranges for "quick" report info. The other option is to manually type in the begin and end date. If anyone could help me out with this I would be very grateful.
