I am writing a fairly complex data automation procedure that basically uses about 5 stored procedures and some additional sql from C# to populate a database. i would like to utilize transactions in C# and sql to help me if something goes wrong. My question is, do i have to maintain the same connection in order to have one transaction for all my Commands. right now i do things like connection.Open();Command.ExecuteNonQuery(); connection.Close(); connection.Open();Command2.ExecuteNonQuery(); connection.Close(); i think i have to keep the same connection open for the duration of all my commands in order to utilize transactions, is this correct? thanks, mcm
I have a simple question: Can I have two or more stored procedures that begin transactions but the last stored procedure will commit all transactions if there was no error? In other words, I have a stored procedure that performs some legacy stuff. I do not want to rewrite that logice, execpt I am putting it into a Stored Procedure since it currently is embedded SQL. To support newer functionality, I am writing data to additional new tables. However, I do not want the *new* things to occur if there is an error. This is easy enough, I dont call the Stored Procedure for the new functionality if there was an error. However, if there was not an error and the newer stored procedure is called AND there is an error in the new stored procedure, I want to ROLLBACK the changes from the proceeding stored procedures. To my understanding, I can name transactions but that is only to indicate in the logs what transactions have failed. I thought about not using transactions for any of the individual stored procedures and calling them from a main stored procedure. The main stored procedure will have a BEGIN TRY and an END TRY (I am using SQL Server 2005) and at the top (right after the try) I will have a BEGIN TRANSACTION. In the BEGIN CATCH I will have a ROLLBACK and at the end I will have a COMMIT. If any of the stored procedures fail at any point it will cause the catch to occur thus rolling back all of my transactions. This would be the easiest way but I still need to deal with the question of, "What happens if any single stored procedure is called?" I guess I could have try and catches in each individual stored procedure for that. I just want to make sure I am not overlooking something simple. I think I have the right idea by doing it this way I mentioned above. Because this is critical billing processing I just want to have some reassurance that this would work. Thank
I have a package with two sequence containers, each containing two SQL tasks and a data flow task, executed in that order. I want to encapsulate the data flow task in a transaction but not the SQL tasks. I have the TransactionOption property set to 'required' on the data flow tasks and 'supported' on the SQL tasks and the sequence containers. When I run the package I get a distributed transaction error on the first SQL task of the second sequence container:
"[Execute SQL Task] Error: Executing the query "TRUNCATE TABLE DistTransTbl2" failed with the following error: "Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly."
The only way I can get the package to succeed is to set the TransactionOption = 'required' on the sequence containers and 'supported' on all subordinate tasks. This is not what I want, however. Any ideas?
I am using ODBC to connect to SQL Server. The documentation says that ODBC transactions are managed on the connection level and cannot span connections.
Does this mean that two instances of my code using transactions (each with its own process and a single connection) in the same machine accessing the same database will not play nice together (violate transaction rules)?
I have backed up databases from a 2008 server and now I would need to restore them to a 2012 , the only issue is that I need a script bcuz I have over a hundred databases.
Hi,I'm having a problem running a distributed transaction between twolinked servers that both have multiple instances of SQL Serverinstalled on them. This is the error message that I receive:"The operation could not be performed because the OLE DB provider'SQLOLEDB' was unable to begin a distributed transaction.[OLE/DB provider returned message: New transaction cannot enlist in thespecified transaction coordinator. ]OLE DB error trace [OLE/DB Provider 'SQLOLEDB'ITransactionJoin::JoinTransaction returned 0x8004d00a]."The query follows the format:"BEGIN DISTRIBUTED TRANUPDATE [LINKEDSERVER1INSTANCE_NAME].DB.OWNER.TABLENAMESET fieldname = alias2.fieldnameFROM tablename alias2JOIN [LINKEDSERVER1INSTANCE_NAME].DB.OWNER.TABLENAME alias1on alias2.urn=alias1,urn"[color=blue]>From what I can gather from various sources the SQL Server must be[/color]named the same as the computer which it is installed on. However, if Ihave two instances of SQL Server, they cannot both be named the same asthe computer. Does anyone know of a way around this or whether I'mbarking up the wrong tree completely?Many thanks.
I am using distributed transactions where in I start a TransactionScope in BLL and receive data from service broker queue in DAL, perform various actions in BLL and DAL and if everything is ok call TransactionScope.Commit().
I have a problem where in if i run multiple instances of the same app ( each app creates one thread ), the threads pop out the same message and I get a deadlock upon commit.
My dequeue SP is as follows:
CREATE PROC [dbo].[queue_dequeue] @entryId int OUTPUT AS BEGIN DECLARE @conversationHandle UNIQUEIDENTIFIER; DECLARE @messageTypeName SYSNAME; DECLARE @conversationGroupId UNIQUEIDENTIFIER;
GET CONVERSATION GROUP @conversationGroupId FROM ProcessingQueue; if (@conversationGroupId is not null) BEGIN RECEIVE TOP(1) @entryId = CONVERT(INT, [message_body]), @conversationHandle = [conversation_handle], @messageTypeName = [message_type_name] FROM ProcessingQueue WHERE conversation_group_id=@conversationGroupId END
if @messageTypeName in ( 'http://schemas.microsoft.com/SQL/ServiceBroker/EndDialog', 'http://schemas.microsoft.com/SQL/ServiceBroker/Error' ) begin end conversation @conversationHandle; end END
Can anyone explain to me why the threads are able to pop the same message ? I thought service broker made sure this cannot happen?
Now we have different packages for 4 tables data loading. These 4 packages will start at a time. Before going to load the data we have to make the Flag to 1 and after that we have to load it. Because of this we have written Update statement to update the Value to 1 in respective Package.
Now we are getting dead lock because we are using same table at a same time. Because we are updating different records.
I understand how to find (generate) missing dates for the year 2006 if I have a range value like 1-1-2006 to 3-1-2006. (I'm just using 2006 for arguements sake - the needed approach starts back in 2004 or so and will extend to the current day)
Now the question that presents itself is, is there an elegant way to do this same process with an arbitrary number of date ranges per customer? There would be 1 record per range, per customer
What I'd like to generate is a record per missing date in 2006, which would be: 4 records for 1-1-2006 to 1-4-2006 several records for 2-1-2006 to 10-31-2006 and then more for 11-18-2006 to 12-14-2006
As I said before, the number of ranges isn't static. It could be 1 or a dozen and could increase as time goes on. At this time, all I can see to potentially make it work in query is to do a dozen joins - which kind of sucks.
My other thought is to do specific processing per customer, per range gap, but it will be terribly slow.
I'm new to SSIS and have a question about the best way to generate multiple Excel files with my current package design. I have a stored procedure that I run from an Execute SQL Task in a foreach loop container, and it generates results as appropriate for each of the parameters it loops through.
What's the best way to take the result set from each of those executions and generate an Excel file from each set? How do I map that result set variable to be the input for creating a new Excel file? Is this best done as a script task somehow?
Should I not be using SSIS for this task? I thought I would just create a package and schedule it to run daily with SQL Agent, and it would autogenerate the Excel files as needed.
I have a package in which, when a Cost Center has X as a value, I must insert not X but many different Y value, which are associated with X. How can I gather and treat those Y values? Only using a Script Component?
I am using SS 2005 RS. I am able to generate single page pdf reports by passing "id" as a parameter. Now I need to send multiple ids as parameter and generate one big report which would contain reports for all the ids supplied on separate pages. Is this possible? If yes, then how do i do this.
What I have tried so far is, I created new report with a list control and added single page report as a subreport to this list control and grouped this list control using id parameter. When i send multiple ids in the parameter, for example 3 ids, it generates 3 page report but only for the first id. So it generates report for the first id and repeats same report 3 times.
I'm trying to generate a single record that shows the status of an accounting period for multiple groups. For a single accounting period they could all be the same, or all be different (open, closed, hold, etc)
What I want to do is select the accounting period with a group by that says if all the groups are in the same status, then that's the status. But if there are different status' for the period, I just want to have a single line that says 'Mixed' The query below returns 3 records, but I only want 2. I tried a CASE WHEN Having COUNT > 1 but it blew up with an aggregate subquery in a group by error.
DECLARE @AccountingPeriod Table (AccountingPeriod varchar(10), Status char(1), GroupNum int) Insert into @AccountingPeriod Values('2015-03','O',1), ('2015-03','O',2), ('2015-03','O',3), ('2015-02','O',1), ('2015-02','O',2), ('2015-02','C',3) Select AccountingPeriod, Status from @AccountingPeriod GROUP BY AccountingPeriod, Status
Hi there, I have decided to move all my transaction handling from asp.net to stored procedures in a SQL Server 2000 database. I know the database is capable of rolling back the transactions just like myTransaction.Rollback() in asp.net. But what about exceptions? In asp.net, I am used to doing the following: <code>Try 'execute commands myTransaction.Commit()Catch ex As Exception Response.Write(ex.Message) myTransaction.Rollback()End Try</code>Will the database inform me of any exceptions (and their messages)? Do I need to put anything explicit in my stored procedure other than rollback transaction? Any help is greatly appreciated
I need to take a variable from a tabel in SQL Server pass to a Batch file and execute the batch file. Right now I can exec the batch file with XP_CMDSHELL but how can I pass the variable to the batch file and loop through all the variables.
I am using the following batch file to execute a script that creates a db and all its objects in the local sql express:
sqlcmd -S (local)SQLExpress -i C:CreateDB.sql
This works fine, but I'm wondering if there's an easy way to put the script in the batch file, so users don't have to worry about putting the script in the C drive. I tried getting rid of the i parameter and pasting the script from the sql file into the batch file, but it didn't work.
Hello everybody,I was configuring a SqlDataSource control using SQL Authentication mode.I first added a database file (testdb.mdf) through Solution Explorer-Add New Items. Then through Database Explorer I created a table named "info"Then while configuring the SqlDataSource control I used the SQL Authentication mode and attached the "testdb.mdf" database file.Test Connection showed success. But when I hit the Ok button of the wizard it displayed the following error message:Failed to generate a user instance of SQL Server. Only an integrated connection can generate a user instance.While configuring the SqlDataSource control I clicked "New Connection". Under Data Source section I tried both Microsoft SQL Server and Microsoft SQL Server Database File. And in both the cases I attached a databese file(testdb.mdf). Plz enlighten me on this.Thanks and Regards,Sankar.
Hi, I want to schedule a daily job using sql server to update the info. in a sql server table. This is very new to me. Could you please forward me some helpful resources. Thanks,
QuestionsI need to batch a set of update commands. Can that be done and if so what are the possible ramfications? Can one mix / match Deletes/Inserts and Updates into a SQL command via the semi-colon in a batch set? (Is this the appropriate forum?)
WHYI am unable to use the dynamic sql building found in the dataset due to a multiple table contstraints. I have built classes that will extract the differences from two datasets and report on the updates/deletes and inserts required. Since I have multiple SQL statements, it would be nice to combine them into one statement.
Platform.Net 2C#IIS6SQL Server 2000 is the eventual target database for the generated SQL
Hey guys, I periodically have to update maybe 300 records of the same column.. However, I've been udpating each record one by one. Is there a way I can do something the following.ID Name1 john2 chris3 adam4 ben5 steveupdate table1 set name = name where id = ? but have it run through an entire set of these? Is there any way of automating that rather than having to update it manually? Do i need another table with just the id numbers and the column I want to change? or do i need a txt file?
I want to design a DTS task which will: a)copy a certain given files from one directory to another b)import the files into the tables c)upon successful import delete the files from the original directory.
I done know much about scripting and need help in figuring out steps a) and c). thanks Zoey
Can someone show me an example of the syntax required to execute multiple BCP commands within the same batch (*.bat) file?
Sorry if this is a bit of a basic question, but not being a programmer by profession, I need to plead ignorance. I've tried a few things, but I just can't seem to figure it out.
I have a problem running a batch file, now the problem is that when i run the batch file the command prompts the user for an input, but I have all the output of the bat file going into a log file. So when i run the bat file the process just sits there until i hit the 'y' key or unless i nput sumthin manually. This is a problem becuase this batch file is running on the UAT server as a job and there is no one there to input once the job is running. The commnd in the batch only requires an input once a month.
for eg if run: launch_scrt.bat and i want to put sum parameters such as 'y' or 'n' to avoid the manual input once the job is running. Any ideas?
