Will Try Catch Capture All Errors?
Mar 20, 2008
I use a CLR external function to call a payment gateway, for some reason, I could not get any status sometime, check the following code, I expect I get either -2 or -3 in status no matter what error happens - include the gateway error or the CLR error since I have try catch there. Do you think the following code could miss any problem?
begin try
....
select @postresult=dbo.linkclr_u_webpost(@posturl,@postdata)
update link_payments set ccagentcode=@ccagentcode,status=-2,postresult=@postresult where id=@paymentid
....
end try
begin catch
select @message=
'<br>ErrorNumber: '+cast(ERROR_NUMBER() as varchar)+char(13)+
'<br>ErrorSeverity: '+cast(ERROR_SEVERITY() as varchar)+char(13)+
'<br>ErrorState: '+cast(ERROR_STATE() as varchar)+char(13)+
'<br>ErrorProcedure: '+isnull(ERROR_PROCEDURE(),'')+char(13)+
'<br>ErrorLine: '+cast(ERROR_LINE() as varchar)+char(13)+
'<br>ErrorMessage: '+isnull(ERROR_MESSAGE(),'')+char(13)
update link_payments set status=-3,postresult=@message where id=@paymentid
return -1
end catch
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Feb 15, 2007
Hi,
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?
Hope someone could help.
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Feb 26, 2008
Hi everybody:
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?
Thanks.
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Apr 10, 2008
Ive started using try/catch in my t-sql code now and I rather like it, since im a C# developer. I read that some errors with an error code below 10 will not cause the catch block to be entered. What kind of errors does this include ?
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Aug 3, 2007
I have a sqldatasource and I allow deletions that could cause a constraint violation. I want to capture this error however, I am using the sqldatasource bound to my datacontrol. I dont know where to catch the error. Unfortunately there is no OnError event for the control... There is no code behind for this at this time. I am hoping there is a way to do this without completely rewiring everything.
My thanks in advance,
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Jul 7, 2006
Is there any way to emulate the try/catch mechanism that SqlServer2005 provides using SqlServer2000?
Or more simply,
Is there any kind of IGNORE_ERROR or CONTINUE_ON_ERROR setting for SqlServer 2000?
Thanks
- John
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May 3, 2006
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.
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Sep 28, 2007
Hi all!!
I have a stored procedure that dynamically bulk loads several tables from several text files. If I encounter an error bulk loading a table in the stored procedure, all I get is the last error code produced, but if I run the actual bulk load commands through SQL Management Studio, it gives much more usable errors, which can include the column that failed to load. We have tables that exceed 150 columns (don't ask), and having this information cuts troubleshooting load errors from hours down to minutes. Onto my question..., is there any way to capture all of the errors produced by the bulk load from within a stored procedure (see examples below)?
Running this...
BULK INSERT Customers
FROM 'c: estcustomers.txt'
WITH (TabLock, MaxErrors = 0, ErrorFile = 'c: estcustomers.txt.err')
Produces this (notice column name at the end of the first error)...
Msg 4864, Level 16, State 1, Line 1
Bulk load data conversion error (type mismatch or invalid character for the specified codepage) for row 1, column 1 (CustId).
Msg 7399, Level 16, State 1, Line 1
The OLE DB provider "BULK" for linked server "(null)" reported an error. The provider did not give any information about the error.
Msg 7330, Level 16, State 2, Line 1
Cannot fetch a row from OLE DB provider "BULK" for linked server "(null)".
Running this (similar to code in my stored procedure)...
BEGIN TRY
BULK INSERT Customers
FROM 'c: estcustomers.txt'
WITH (TabLock, MaxErrors = 0, ErrorFile = 'c: estcustomers.txt.err')
END TRY
BEGIN CATCH
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
Produces something similar to this (which is useless)...
...Cannot fetch a row from OLE DB provider "BULK" for linked server "(null)".
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Oct 24, 2007
Hi
I have created a package which executes every 10 mins. Last week end for maintenance purpose, I shutdown my database. Now as an initial execution process, my package does the default validation steps on which the database connection validation step fails. As this is the default functionality of SSIS I am not able to capture this error. Is there anyway to capture this error inside SSIS Package?
Thanks in advance.
Gnan
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Jul 22, 2006
I have an Execute Process Task within my package that executes a BCP command which outputs the resultset of a query to a file in the network share. It works fine most of the time, however sometimes for unknown reasons, the following error message gets logged in my log table -
In Executing "c:Program FilesMicrosoft SQL Server90ToolsBinncp.exe" "Select Comments, SoldToCustomerNbr, ProductGroupingCode, ProductGroupingName, RevSumCategoryCode, RevSumCategoryName, ValidFromDate, DTSCollectPct, DTSPrepaidPct, DTSPickUpPct, DCCollectPct, DCPrepaidPct, DCPickUpPct From ShipmentTypeCustomerBlend" queryout \xxxLOGShipmentTypeCustomerBlendLog_060719201440.txt -c -t" " -SDummyServer -T -e"d:SSIS Error LogsJob ExecutionBcpErrors.log" at "", The process exit code was "1" while the expected was "0".
The above error was captured from the System::ErrorDescription variable, by the error event handler, that was attached to the Execute Process Task. This error does not help me to debug the issue.
On running the below statement from the command prompt, i get the actual error message, which is the expected behavior -
"c:Program FilesMicrosoft SQL Server90ToolsBinncp.exe" "Select Comments, SoldToCustomerNbr, ProductGroupingCode, ProductGroupingName, RevSumCategoryCode, RevSumCategoryName, ValidFromDate, DTSCollectPct, DTSPrepaidPct, DTSPickUpPct, DCCollectPct, DCPrepaidPct, DCPickUpPct From ShipmentTypeCustomerBlend" queryout \xxxLOGShipmentTypeCustomerBlendLog_060719201440.txt -c -t" " -SDummyServer -T -e"d:SSIS Error LogsJob ExecutionBcpErrors.log"
Expected Error Message -
Unable to open BCP host data-file.
This error message indicates that either the network path - \xxxLOG is not available for the output file creation or the file - \xxxLOGShipmentTypeCustomerBlendLog_060719201440.txt could not be created for some reason.
I 've tried to capture the error message from the StandardErrorVariable and the StandardOutputVariable properties of the ExecuteProcess Task, but in vain.
Is this a bug ? If so, is there a way to get the actual error message from the task ?
Thanks,Reni
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Nov 19, 2007
Hi
Is it possible to capture the errors which raising in System,Databases,networking using SQLServer UDB(assume DBA Database).
or
Is it possible to store all Errors(system,Databases,networking...Services failure...)in SQL Server UDB.
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Nov 16, 2007
Hi, I have a stored procedure running on our monitoring server to monitor the backup jobs on other sql servers running on our network. This sp loops thorugh the list of server names and connects remotely to other servers using linked servers. However, if one of the servers is down, the sp stops after raising 42000 error ("SQL Server does not exist") and fails to carry on processing the next server in the list.
Is there any way to capture this "SQL Server does not exist" error within the sp so that the sp can carry on with the processing?
I am using SQL Server 2000 SP4.
Thanks in advance for any replies.
Opal
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May 15, 2007
hi all,
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)
sqlcon.Close();
sqlcon.Dispose();
}
}//end of finlally
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Jul 1, 2015
I recently updated the datatype of a sproc parameter from bit to tinyint. When I executed the sproc with the updated parameters the sproc appeared to succeed and returned "1 row(s) affected" in the console. However, the update triggered by the sproc did not actually work.
The table column was a bit which only allows 0 or 1 and the sproc was passing a value of 2 so the table was rejecting this value. However, the sproc did not return an error and appeared to return success. So is there a way to configure the database or sproc to return an error message when this type of error occurs?
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Jul 31, 2006
I have a parent package that calls child packages inside a For Each container. When I debug/run the parent package (from VS), I get the following error message: Warning: The Execution method succeeded, but the number of errors raised (3) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors.
It appears to be failing while executing the child package. However, the logs (via the "progress" tab) for both the parent package and the child package show no errors other than the one listed above (and that shows in the parent package log). The child package appears to validate completely without error (all components are green and no error messages in the log). I turned on SSIS logging to a text file and see nothing in there either.
If I bump up the MaximumErrorCount in the parent package and in the Execute Package Task that calls the child package to 4 (to go one above the error count indicated in the message above), the whole thing executes sucessfully. I don't want to leave the Max Error Count set like this. Is there something I am missing? For example are there errors that do not get logged by default? I get some warnings, do a certain number of warnings equal an error?
Thanks,
Lee
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Apr 20, 2006
Starwin writes "when i execute DBCC CHECKDB, DBCC CHECKCATALOG
I reveived the following error.
how to solve it?
Server: Msg 8909, Level 16, State 1, Line 1 Table error: Object ID -2093955965, index ID 711, page ID (3:2530). The PageId in the page header = (34443:343146507).
. . . .
. . . .
CHECKDB found 0 allocation errors and 1 consistency errors in table '(Object ID -1635188736)' (object ID -1635188736).
CHECKDB found 0 allocation errors and 1 consistency errors in table '(Object ID -1600811521)' (object ID -1600811521).
. . . .
. . . .
Server: Msg 8909, Level 16, State 1, Line 1 Table error: Object ID -8748568, index ID 50307, page ID (3:2497). The PageId in the page header = (26707:762626875).
Server: Msg 8909, Level 16, State 1, Line 1 Table error: Object ID -7615284, index ID 35836, page ID (3:2534). The PageId in the page heade"
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Jan 15, 2007
Hi
for MS SQL 2000
how can I do ?:
INSERT INTO [Users] (Name)
SELECT Names FROM OtherUsers
I am having an UNIQUE INDEX on [Users].Name
how can I avoid an error ?
if the [Users].Name allready exists I want to jump over the error and keep on inserting
thank you for helping
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Apr 22, 2008
Is it any better than using @@ERROR?
It doesn't seem so
Any opinions?
Brett
8-)
Hint: Want your questions answered fast? Follow the direction in this link
http://weblogs.sqlteam.com/brettk/archive/2005/05/25/5276.aspx
Add yourself!
http://www.frappr.com/sqlteam
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May 13, 2008
Hi!
I'm trying to use Try Catch together with transaction handling but it seems like it doesn't do Rollback although I produce an error.
It looks something like this:
DECLARE @soID INT
BEGIN TRY
BEGIN TRANSACTION
UPDATE Serviceobjekt
SET ServiceobjektstypID = 13
WHERE ServiceobjektID = 26555
UPDATE .... 2 more tables
INSERT INTO Serviceobjekt (
Namn...)
VALUES ('XXXX')
SET @soID = @@IDENTITY
INSERT INTO Atgard (
Namn, ServiceobjektID)
VALUES ('sssss',@soID)
COMMIT TRANSACTION
BEGIN CATCH
IF @@TRANCOUNT > 0
ROLLBACK
END CATCH
I get after changing some id's in the where clause which I know is wrong I get a result like this:
(0 row(s) affected)
(0 row(s) affected)
(1 row(s) affected)
(0 row(s) affected)
Shouldn't it be 0 rows affected on all if just one update or insert statement is wrong?
/Magnus
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May 22, 2008
Hi I use Try catch and transactions in one of my stored procedures.
Inside I make a call to another stored procedure.
Is it possible to roll back the outer sp?
Please advise.
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Oct 7, 2007
Hello!
Try this (-:
BEGIN TRY
SELECT *
FROM NonExistentTable ;
END TRY
BEGIN CATCH
PRINT 'catch me if you can' ;
END CATCH ;
/*
results in:
Msg 208, Level 16, State 1, Line 2
Invalid object name 'NonExistentTable'.
statement not printet */
BEGIN TRY
BEGIN TRY
SELECT *
FROM NonExistentTable ;
END TRY
BEGIN CATCH
PRINT 'catch me if you can' ;
END CATCH ;
END TRY
BEGIN CATCH
PRINT 'catched?'
END CATCH ;
-- same behaviour
CREATE PROC catchme
AS
BEGIN
BEGIN TRY
SELECT *
FROM nonexistingtable ;
END TRY
BEGIN CATCH
PRINT 'catch me if you can'
END CATCH ;
END ;
BEGIN TRY
EXEC catchme ;
END TRY
BEGIN CATCH
PRINT 'catched' ;
END CATCH ;
-- prints "catched"
BEGIN TRY
EXEC catchnonexistingproc ;
END TRY
BEGIN CATCH
PRINT 'catched again' ;
SELECT error_state()
END CATCH ;
-- prints "catched again"
BEGIN TRY
RAISERROR ('catch this' , 10 , 1) ;
END TRY
BEGIN CATCH
PRINT 'hello' ;
END CATCH ;
-- no hello
BEGIN TRY
RAISERROR ('catch this' , 11 , 1) ;
END TRY
BEGIN CATCH
PRINT 'hello' ;
END CATCH ;
-- prints hello
CREATE PROC catchme2
AS
BEGIN
BEGIN TRY
RAISERROR ('catch this' , 10 , 1) ;
END TRY
BEGIN CATCH
PRINT 'CATCH ME IF YOU CAN' ;
END CATCH ;
END ;
BEGIN TRY
EXEC catchme2 ;
END TRY
BEGIN CATCH
PRINT 'gotcha?' ;
END CATCH ;
-- prints only "catch this"
CREATE PROC catchme3
AS
BEGIN
BEGIN TRY
RAISERROR ('catch this' , 20 , 1) ;
END TRY
BEGIN CATCH
PRINT 'CATCH ME IF YOU CAN' ;
END CATCH ;
END ;
BEGIN TRY
EXEC catchme3 ;
END TRY
BEGIN CATCH
PRINT 'gotcha?' ;
END CATCH ;
-- prints "CATCH ME IF YOU CAN" ;-)
See also
-- ms-help://MS.SQLCC.v9/MS.SQLSVR.v9.en/udb9/html/3a5711f5-4f6d-49e8-b1eb-53645181bc40.htm
The above behaviour is as described in BOL, but
comparing to other languages such as Java, C#, PL/SQL
I would expect that catch always catch unless you take the power from the machine, special
in the case for "catchnonexistingproc". Remark the different behaviour compared to "nonexistingtable"
Documentation shows not example for non existing proc!
That catch doesn't catch "is as bug". So is the catch of non existing proc a bug in the bug? ;^)
I hope not, because it is the behaviour we want...
Greetings
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Feb 26, 2007
I want to use a try/catch to catch any error with this datareader so if no data then exit sub, eventually I will create custom error pagebut for now I just want to exit sub so following sql statements are not executed. I get the following problem when I try to close connection.this was not a problem before using try and catch, do I have in right place? Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 'declare vars Dim iPreqid As String = CStr(Session("iPreqid")) Dim sql As String = "select * from Vrequest where req_id = '" & iPreqid & "'" 'Connection String value Dim conn As String = ConfigurationManager.ConnectionStrings("LoansConnectionString").ConnectionString 'Create a SqlConnection instance Using myConnection As New SqlConnection(conn) Dim myCommand As New SqlCommand(sql, myConnection) 'declare sqldatareader Dim dbReader As SqlDataReader Try myConnection.Open() myCommand.ExecuteNonQuery() dbReader = myCommand.ExecuteReader 'Initialize reader dbReader.Read() 'assign reader index values using column names to controls Label8.Text = CStr(dbReader("User_Name")) Label11.Text = CStr(dbReader("NHI")) Label9.Text = CStr(dbReader("Event_Number")) Label10.Text = CStr(dbReader("ACC_Number")) Label7.Text = CStr(dbReader("Required_Date")) Label1.Text = CStr(dbReader("Title")) Label3.Text = CStr(dbReader("address1")) Label4.Text = CStr(dbReader("Birth_date")) Label2.Text = CStr(dbReader("surname")) Label5.Text = CStr(dbReader("home_phone")) Label21.Text = CStr(dbReader("firstname")) Label20.Text = CStr(dbReader("delivery")) Label22.Text = CStr(dbReader("ward")) Label23.Text = CStr(dbReader("request_date")) Catch ex As Exception Session("exception") = ex exit sub End Try End Using 'if connection not closed then close If (Not conn Is Nothing) Then myConnection.Close()<---------------------------------------->Name 'myconnection is not declared' myConnection.Dispose()<---------------------------------------->Name 'myconnection is not declared' End If
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Jul 2, 2007
Hi,
Here is the code:Try
If DS.Tables(0).Rows.Count = 0 ThenResponse.Write("Cannot delete an unexist row!")
Response.End()
End If
DS.Tables(0).Rows(0).Delete()
Catch BUG as Exception
Response.Write(Bug.Message)
End Try
I removed all the connection stuff..
What I don't understand is why if ds.table(0).rows.count is zero I still get Bug.Message? I did Response.End ...
Thank you.
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Mar 25, 2008
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
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Aug 21, 2007
Hi,
I have the following stored procedure which is added to the windows scheduler. When it is run I'm getting an "Invalid use of null error", therefore I need to capture and any errors but I'm not sure how to do this. Can someone help?
Thanks.
Code:
CREATE PROCEDURE [dbo].[usp_Reminders] AS
DECLARE @ReminderSent datetime
DECLARE @getRecords CURSOR
DECLARE @err int
SELECT E.[RL Staff No], E.Forename, E.Surname, C.CourseName, V.CourseDate , E.Email, V.ReminderSent
FROM empdetails.dbo.v_Employee E
INNER JOIN Validation V ON E.[RL Staff No] = V.[RL Staff No]
INNER JOIN empdetails.dbo.v_Course C ON V.CourseCode = C.CourseCode
WHERE V.Completed Is Null AND V.ReminderSent Is Null AND V.CourseDate <= dateadd(dd, -3, getdate())
order by e.[rl staff no]
SET @getRecords = CURSOR FOR
SELECT V.ReminderSent
FROM empdetails.dbo.v_Employee E
INNER JOIN Validation V ON E.[RL Staff No] = V.[RL Staff No]
INNER JOIN empdetails.dbo.v_Course C ON V.CourseCode = C.CourseCode
WHERE V.Completed IS NULL AND V.ReminderSent IS NULL AND V.CourseDate <= dateadd(dd, -3, getdate())
ORDER BY e.[rl staff no]
OPEN @getRecords
FETCH NEXT FROM @getRecords INTO @ReminderSent
WHILE @@FETCH_STATUS= 0
BEGIN
UPDATE Validation
SET ReminderSent = GetDate()
WHERE CURRENT OF @getRecords
FETCH NEXT FROM @getRecords INTO @ReminderSent
END
CLOSE @getRecords
DEALLOCATE @getRecords
GO
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Dec 11, 2006
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
Any idea why is it so?
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Apr 13, 2008
can someone help me how to corect the query,
BEGIN TRY
INSERT INTO ORDERS VALUES( 1122,'BAC123' );
INSERT INTO ORDLINE VALUES( 1122,991,1 );
PRINT 'VERY GOOD'
END TRY
BEGIN CATCH
PRINT 'FALSE'
INSERT INTO LOGTAB ('BAC123',1122,991,1, ERROR_NUMBER,ERROR_MESSAGE);
END CATCH
i am getting error:
Msg 102, Level 15, State 1, Line 11
Incorrect syntax near 'ERROR_NUMBER'.
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Mar 14, 2007
hi there i have 2 questions about the TRY/CATCH statement that i have written below. any advice from more experienced persons would be highly appreciated. thankyou.
1. re the @ErrorMessage variable, i have seen this declared with a datatype of varchar(MAX), nvarchar(2048) and nvarchar(4000). which is the correct one for me to use?
2. do i need the statement 'RETURN @ErrorCode' at the end or is this redundant?
BEGIN CATCH
IF @@TRANCOUNT > 0
ROLLBACK TRANSACTION
DECLARE
@ErrorCode int,
@ErrorMessage nvarchar(4000),
@ErrorSeverity int
SELECT
@ErrorCode = @@ERROR,
@ErrorMessage = ERROR_MESSAGE(),
@ErrorSeverity = ERROR_SEVERITY()
IF EXISTS (SELECT *FROM Users WHERE Username = @Username)
RAISERROR('The username already exists.', 15, 1)
ELSE IF EXISTS (SELECT * FROM Users WHERE Email = @Email)
RAISERROR('The email already exists.', 15, 1)
ELSE
RAISERROR(@ErrorMessage, @ErrorSeverity, 1)
RETURN @ErrorCode
END CATCH
END
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Dec 27, 2006
how to try-catch sp_addrolemember?
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Jul 20, 2005
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!
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Jul 20, 2005
Hi everyone, I am using an SQL extended stored procedure to send emails in aDTS package using a cursor that goes through each row in a table.Email sending code below======================exec master.dbo.xp_smtp_sendmail@FROM = @sFrom,@FROM_NAME = @sFrom,@TO = @sRecepients,@subject = @sSubject,@message = @sBody,@type = N'text/html',@codepage = 0,@server =N'MYMAILSERVER'======================Fetch Next From EmailCursor ...Now the problem I have is that if an individual email address in invalidthen an error occurs and the whole DTS package falls over. What I would liketo be able to do is "catch the error", something like this (C# code used asexample)try{exec master.dbo.xp_smtp_sendmail@FROM = @sFrom,@FROM_NAME = @sFrom,@TO = @sRecepients,@subject = @sSubject,@message = @sBody,@type = N'text/html',@codepage = 0,@server =N'MYMAILSERVER'} catch {exec master.dbo.xp_smtp_sendmail@FROM = "arealaddress@mybusiness.com",@FROM_NAME = @sFrom,@TO = @sRecepients,@subject = @sSubject,@message = @sBody,@type = N'text/html',@codepage = 0,@server =N'MYMAILSERVER'}Is this possible??? Normally I would do all the email validation before theemail is entered into the database but unfortunately, I do not have accessto the application code so I am stuck doing it this way.Thanks in advanceMark
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Oct 20, 2007
Hi there,
My question is more "architectural" than technical.
One of our standard is to systematically enclose the code of our stored proc within a TRY/CATCH block.
What is your point of view?
Should a TRY/CATCH be included even for simple operations?
Are there any drawbacks?
Thanks!
EDIT: Thanks for your input.
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Apr 28, 2008
I have 3 procedures where the first one calls the second one and the second one calls the third one. All procedures have try..catch blocks and transactions. In the third procedure I declare an INT variable and try to give it the value 'A', to create an error. This makes the code in the catch block to run. In the catch block I rollback the transaction and return 1. It then returns to the 2nd procedure, but here I get the exception "Transaction count after EXECUTE indicates that a COMMIT or ROLLBACK TRANSACTION statement is missing. Previous count = 2, current count = 0. Is there I way to keep running the code in the second procedure without getting this error? I take care of the return value from the 3rd procedure which is 1 so I know that there was an error in the third procedure but I want to run the code below the procedure call to the 3rd procedure in the second procedure, is there I way to do this?
I tried to have a transaction only in the first procedure but then I get this error "The current transaction cannot be committed and cannot support operations that write to the log file. Roll back the transaction."
What shoule I do to continue running the code in procedure 2 and procedure 1 after the procedure calls? In real life I have another scenario but the code below is just an easy example that creates the same error that my real procedures create.
Procedure 1:
Code Snippet
ALTER PROCEDURE [dbo].[ProcFirst]
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
BEGIN TRY
DECLARE @return int
BEGIN TRANSACTION
EXEC @return = [dbo].[ProcSecond]
IF @return <> 0
BEGIN
SELECT 'return value <> 0 i ProcFirst'
RETURN 1
END
IF (XACT_STATE()) = 1 COMMIT TRANSACTION
RETURN 0
END TRY
BEGIN CATCH -- Error-handling statements
-- End Transaction
IF @@TRANCOUNT > 0 BEGIN
IF (XACT_STATE()) = -1 ROLLBACK TRANSACTION;
IF (XACT_STATE()) = 1 COMMIT TRANSACTION;
END
SELECT 'catch ProcFirst', @ErrorMessage
RETURN 1
END CATCH
END
Procedure 2:
Code Snippet
ALTER PROCEDURE [dbo].[ProcSecond]
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
BEGIN TRY
DECLARE @return int
BEGIN TRANSACTION
EXEC @return = [dbo].[ProcThird]
IF @return <> 0
BEGIN
-- End Transaction
IF @@TRANCOUNT > 0
BEGIN
IF (XACT_STATE()) = -1
BEGIN
SELECT 'RollBack transaction'
ROLLBACK TRANSACTION;
END
IF (XACT_STATE()) = 1
BEGIN
Select 'commit transaction'
COMMIT TRANSACTION;
END
END
SELECT 'return value <> 0 i ProcSecond'
RETURN 1
END
IF (XACT_STATE()) = 1 COMMIT TRANSACTION
RETURN 0
END TRY
BEGIN CATCH -- Error-handling statements
-- End Transaction
IF @@TRANCOUNT > 0
BEGIN
IF (XACT_STATE()) = -1 ROLLBACK TRANSACTION;
IF (XACT_STATE()) = 1 COMMIT TRANSACTION;
END
SELECT 'catch ProcSecond', @ErrorMessage
RETURN 1
END CATCH
END
3rd procedure:
Code Snippet
ALTER PROCEDURE [dbo].[ProcThird]
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
BEGIN TRY
DECLARE @tal int
BEGIN TRANSACTION
SET @Tal = 'a'
IF (XACT_STATE()) = 1 COMMIT TRANSACTION;
RETURN 0
END TRY
BEGIN CATCH -- Error-handling statements
--End Transaction
IF @@TRANCOUNT > 0
BEGIN
IF (XACT_STATE()) = -1
BEGIN
SELECT 'RollBack transaction ProcThird'
ROLLBACK TRANSACTION;
END
IF (XACT_STATE()) = 1
BEGIN
Select 'commit transaction ProcThird'
COMMIT TRANSACTION;
END
END
RETURN 1
END CATCH
END
Please help me!
//Emelia
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