I'm working with ADO 2.8 en C++ with Visual Studio 2005. I want to perform a "select" in asynchronous mode. I don't really understand the logical of the recordset events. For example, I received a number of MoveComplete event higher than the number of rows in my recordset. It is really not clear for me ...
Does someone knows where I can find a a good example of C++ (or VB) code to manage select statements in asynchronous mode ?
i just can't find a way to perform this Select Query in my ASP.Net page. I just want to find out the sales for a certain period[startDate - endDate] for each Region that will be selected in the checkbox. Table Sales Fields: SalesID | RegionID | Date | Amount This is how the interface looks like.Thank You.
In my shared hosting environment where I am making large volumes of database calls, I am very anxious to preserve my heavily throttled threads-I presume when I make a database call, that it is going to a separate server and any threads that server may be using are in addition to my " hosting plan ". My question (s) is, is it therefore a no-brainer to always make calls to:Dim oResult As IAsyncResult = iDBCmd.BeginExecuteReader()arWaitHandles(0) = oResult.AsyncWaitHandleiIndex = WaitHandle.WaitAny(arWaitHandles, 60000, False) i.e. run all calls to the database asynchronously? Is it really releasing a thread back to my asp.net App while it is waiting? (I.e. Is it worth doing)
I have a lengthy stored procedure that does archiving that I'd just like to start and let it run, quickly returning control back to the ASP.net web page. To accomplish this my research shows that I should be passing the "adAsyncExecute" option but all of the examples I've been able to find don't jive with the way I execute stored procedures. Shown below is the code I'm using. How would I introduce "adAsyncExecute" ? public static int DoStoredProcedure(SqlConnection aConn, string procName, params SqlParameter[] theParams) { int retVal = 0; SqlCommand aComm = new SqlCommand(procName, aConn); aComm.CommandType = CommandType.StoredProcedure; foreach(SqlParameter aParam in theParams) { aComm.Parameters.Add(aParam); } SqlParameter returnValue = aComm.Parameters.Add("@ReturnValue", SqlDbType.Int); returnValue.Direction = ParameterDirection.ReturnValue; try { aConn.Open(); aComm.ExecuteNonQuery(); retVal = (int) returnValue.Value; } catch(Exception ex) { Debug.Fail("Error running SQL Query: " + ex.Message, "DBTools.DoStoredProcedure"); throw; } finally { aConn.Close(); } return retVal; }
I'm assuming it's possible to call a web service asynchronously from a SQL CLR function, is this correct or is there a fundamental flaw in calling the asynchronous methods?
I've tried coding a sample and despite creating a new thread, which in turn calls the web service asynchronously and using newthread.join I can never get the webmethodasync_completed sub to be called.
Within a stored procedure, is it possible to call multiple other stored procedures asychronously? For example, I'd like to execute both local and remote stored procedures, but don't want/need to wait for the output while the original stored procedure continues to execute each subsequent command.
I have a checksum calculation as a persisted, indexed computed column on a temporary table that I used to compare against original records to detect changes.
It seems that the update/ insert statements in my procs get out of sync on larger tables (500,000 rows +) with the checksum calculations. The only thing I can think of is that the column calculations are performed asynchronously in relation to the updates/ inserts. This is a problem for me.
Is my assumption correct? If it is, how can I adjust for this, i.e., force the computations to be performed synchronously or wait for the computations to complete before running comparisons?
Is it possible to execute a child package from a parent package ashnchronously.
I have a SQL Server table containing a list of packages to execute. I want to create a master package that will query this table, and execute each of the packages asynchronously.
I've tried using the Execute Package task and also executing packages programtically from a Script task, but these only seem to work synchronously.
I have also seen suggestions about executing packages asynchronously from T-SQL by starting a job, however, I'd rather not have to dynamically create jobs for each package I want to execute.
Any ideas would be welcome. Or even an answer of "No this is not possible".
I have a checksum calculation as a persisted, indexed computed column on a temporary table that I used to compare against original records to detect changes.
It seems that the update/ insert statements in my procs get out of sync on larger tables (500,000 rows +) with the checksum calculations. The only thing I can think of is that the column calculations are performed asynchronously in relation to the updates/ inserts. This is a problem for me.
Is my assumption correct? If it is, how can I adjust for this, i.e., force the computations to be performed synchronously or wait for the computations to complete before running comparisons?
if service broker is not an option, how can the trigger and sp(s) called by our trigger act asynchronously to the event that fired the trigger in the first place. We are more concerned with the original event being committed than the actions that follow via the trigger.
I have about 30 different reports that I want to pull into a dashboard. I need to make sure that they don't execute in serial to get good performance.
There are two ways I can approach it
1) I can create a stored procedure for each report and then make sync calls for each of the reports from the web site. So, basically this will be controlled from the web end.
2) I can do this from the SQL Server database, if there is someway to execute these stored procedures in parallel.
I am using SQL Server 2005 and I have an endpoint that exposes some stored procedures as web-methods in the endpoint.
One particular stored procedure I have exposed takes a long time to execute: about 10 - 15 minutes. While, it is OK, that this stored procedure takes this long, it is not desirable for the HTTP Request that executed this proc to not wait for that long.
What I want to be able to do is to call the stored procedure and have the call return immidetaly but the stored proc continues what its doing. I will call another stored proc at a later time to retrive the result of the first stored proc. The first proc will store its results in a temp table. I am thinking of using SQL Server Service Broker to achieve this.
Is there a better a way to achieve this? And how does SQL Server process the Service Broker requests, i.e., I dont want the query to be executed when the server is busy. Are there any hints that I need to give to Service Broker to be able to do this?
I am calling a stored procedure (say X) and from that stored procedure (i mean X) i want to call another stored procedure (say Y)asynchoronoulsy. Once stored procedure X is completed then i want to return execution to main program. In background, Stored procedure Y will contiue his work. Please let me know how to do that using SQL Server 2000 and ASP.NET 2.
Sorry to ask a stupid question. I have SQL Server 2000 on SBS 2003. I can't find Perform.exe. Anybody know where it should be (I'm sure that you all do!),
Hi,any body pls help me with the concept called transaction ?Where excatly we are doin this ? In the SQL or through c# codings.i have 3 stored procedures, where i am calling this one by one to perform a single operation in the client side.if any one fails, due to some exceptions. it should rollback and come to the initial state.... How to perform this ? any ideas..
/*Reset Identity on tables with identity column*/ exec sp_MSforeachtable 'IF OBJECTPROPERTY(OBJECT_ID(''?''), ''TableHasIdentity'') = 1 BEGIN DBCC CHECKIDENT (''?'',RESEED,0) END'
-- City SET IDENTITY_INSERT City ON INSERT INTO Elbalazo.dbo.City ( [CityID] ,[CityName] ,[CountyID] ,[Active]) SELECT [CityID],[CityName],[CountyID],1 FROM [ElbalazoProduction].dbo.tbl_City SET IDENTITY_INSERT City OFF
-- State SET IDENTITY_INSERT [State] ON INSERT INTO Elbalazo.dbo.State ( [StateID] ,[State] ,[Active]) SELECT [StateID],[State],1 FROM [ElbalazoProduction].dbo.tbl_State SET IDENTITY_INSERT [State] OFF
-- NumberOfPeopleOption SET IDENTITY_INSERT NumberOfPeopleOption ON INSERT INTO [Elbalazo].[dbo].[NumberOfPeopleOption] ([NumberOfPeopleOptionID] ,[NumberOfPeopleNameOption] ,[Active]) SELECT [NumberOfPeopleID], [NumberOfPeopleName],1 FROM [ElbalazoProduction].dbo.tbl_NumberOfPeople SET IDENTITY_INSERT NumberOfPeopleOption OFF
-- DeliveryOption SET IDENTITY_INSERT DeliveryOption ON INSERT INTO [Elbalazo].[dbo].[DeliveryOption] ([DeliveryOptionID] ,[DeliveryOptionName] ,[Active]) SELECT [DeliveryOptionID], [DeliveryOptionName],1 FROM [ElbalazoProduction].dbo.tbl_DeliveryOption SET IDENTITY_INSERT DeliveryOption OFF
-- User SET IDENTITY_INSERT [User] ON INSERT INTO [Elbalazo].[dbo].[User] ([UserID] ,[FirstName] ,[LastName] ,[Address1] ,[Address2] ,[CityID] ,[StateID] ,[Zip] ,[PhoneAreaCode] ,[PhonePrefix] ,[PhoneSuffix] ,[Email] ,[CreateDate] ,[Active])
SELECT [CustomerID] ,[FirstName] ,[LastName] ,[AddressLine1] ,NULL ,[CityID] ,[StateID] ,[Zip] ,[PhoneAreaCode] ,[PhonePrefix] ,[PhoneSuffix] ,[EmailPrefix] + '@' + [EmailSuffix] ,[CreateDate] ,1 FROM [ElbalazoProduction].dbo.tbl_Customer SET IDENTITY_INSERT [User] OFF
-- EntreeOption SET IDENTITY_INSERT EntreeOption ON INSERT INTO [Elbalazo].[dbo].[EntreeOption] ([EntreeOptionID] ,[EntreeOptionName] ,[Active]) SELECT [EntreeOptionID] ,[EntreeOptionName] ,1 FROM [ElbalazoProduction].dbo.tbl_EntreeOption SET IDENTITY_INSERT EntreeOption OFF
-- CateringOrder SET IDENTITY_INSERT CateringOrder ON INSERT INTO [Elbalazo].[dbo].[CateringOrder] ([CateringOrderID] ,[UserID] ,[NumberOfPeopleID] ,[BeanOptionID] ,[TortillaOptionID] ,[CreateDate] ,[Notes] ,[EventDate] ,[DeliveryOptionID]) SELECT [CateringOrderID] ,[CustomerID] ,[NumberOfPeopleID] ,[BeanOptionID] ,[TortillaOptionID] ,[CreateDate] ,[Notes] ,[EventDate] ,[DeliveryOptionID] FROM [ElbalazoProduction].dbo.tbl_CateringOrder SET IDENTITY_INSERT CateringOrder OFF
-- CateringOrder_EntreeItem SET IDENTITY_INSERT CateringOrderEntreeItem ON INSERT INTO [Elbalazo].[dbo].[CateringOrderEntreeItem] ([CateringOrderEntreeItemID] ,[CateringOrderID] ,[EntreeItemID]) SELECT [CateringORder_EntreeItemID] ,[CateringOrderID] ,[EntreeItemID] FROM [ElbalazoProduction].dbo.tbl_CateringOrder_EntreeItem SET IDENTITY_INSERT CateringOrderEntreeItem OFF
select * from BeanOption select * from CateringItemIncluded select * from CateringOrder select * from CateringOrderEntreeItem select * from CateringOrderEntrees select * from City select * from Country select * from DeliveryOption select * from EntreeOption select * from NumberOfPeopleOption select * from [State] select * from [User]
Hi all, I hope you guys can help me with the following bit of T-SQL. I already have a solution but I really don't like it and I've been trying to find a simpler more elegant way of doing the same thing.
Firstly, let me present you with a brief explanation of what I am trying to do together with some sample data for you to play with and hopefully assist me in finding a better solution than the one I’ve come up with.
insert into #VehMake select 222, 'FORD' union all select 210, 'FORD (USA)' union all select 223, 'FORD (AUS)' union all select 269, 'HONDA' union all select 253, 'NISSAN' union all select 280, 'VOLKSWAGEN'
This contains various vehicle makes which I'm sure you'll recognise!
insert into #VehicleHistory (PersonId, VehMakeVehModel) select 1, 'FORD (USA) MUSTANG' union all select 2, 'HONDA CIVIC' union all select 3, 'NISAAN ALMERA' union all select 4, 'VOLKSWAGEN PASSAT'
As you can see, in the second table, the second column contains a string of the vehicle Make and Model in one string. What I need to do is to split the Make and Model in to separate columns with an update statement.
This seems easy enough with a simple LIKE comparison:
VehMakeVehModel like VehMake+' %'
....BUT if you notice, there are two records in the #VehMake table that are similar but not the same. These are the 'FORD (USA)' and 'FORD (AUS)'. The update statement would return two records from the #VehMake table when trying to match with the first record in my #VehicleHistory table.
As I said, I did come up with a solution but it seems over complicated and I have a feeling that there is a way of doing this with an update. Maybe use the LEN() function but I'm not sure.
Your help would be much appreciated.
BTW, once I've identified the correct Make, I can easily populate my model as all I have to do is use the replace function on VehMakeVehModel column and remove the matched make to get the full model name.
Hope that makes sense and thanks for any help in advance.
I am looking to perform a calculation and enter the reult into a field within my table. The fields that I need to base the calculation on are all in one table (SALARY). The fields are: SALARY and BASIC_HOURS and the result is to be entered into field HOURLY_RATE. The actualy calculation to be preformed is:
Hello, i am using Full text search for my web application search SP. i have used Contains for Exact search and Freetext for Any word kind of search. now i want to perform Like search using Contains. same behaviour which we can get using LIKE word. (e.g. Select * from tbl where field like 'abc%') even i have tried using contains(title,'"*Documen*"') . but its not working.
this is my code: 1 myconnection = new SqlConnection(kiemtraloi,chuoiketnoi); 2 mycommand.Parameters.Add(new SqlParameter("@mancc",SqlDbType.VarChar,10)); 3 mycommand.Parameters["@mancc"].Value = TextBox1.Text; 4 myconnection.Open(); 5 myreader = mycommand.ExecuteReader(); 6 if(myreader.HasRows) And when I click to start button, a error appear: NO overload for method 'sqlconnection' takes '2' argumentsI don't know what i must do :(, please help methx
My e-commerce site is currently running the following process when items are shipped from the manufacturer:1. Manufacturer sends a 2-column CSV to the retailer containing an Order Number and its Shipping Tracking Number.2. Through the web admin panel I've built, a retail staff member uploads the CSV to the server.3. In code, the CSV is parsed. The tracking number is saved to the database attached to the Order Number.4. After a tracking # is saved, each item in that order has its status updated to Shipped.5. The customer is sent an email using ASPEmail from Persits which contains their tracking #.The process seems to work without a problem so long as the CSV contains roughly 50 tracking #'s or so. The retailer has gotten insanely busy and wants to upload 3 or 4 thousand tracking #'s in a single CSV, but the process times out, even with large server timeout values being set in code. Is there a way to streamline the process to make this work more efficiently? I can provide the code if that helps.
Hi all, Lets say that i have 3 tables, they are already related together, information on each of the 3 tables and their relationship between eachother can be found below:I am using Microsoft SQL Server 2005 Database in Visual Web Developer 2008 using VB programming (ADO.NET)The 3 tables are as follows:
FloorRoomLocation
Fields inside each of the tables can be found below:
The Relationships between the 3 tables are as follows:
ID field in Floor table is referenced by the field named FloorID in the Room Table ID field in Floor table is referenced by the field named FloorID in the Location table
NOTE: Location Table serves only as an extension to Floor table thus they have a 1 to 1 relationship, due to My Projects Lead's instructions I am not allowed to consolidate the Floor Table and the Location Table as 1 whole table. Floor Table has a 1 to Many Relationship with the Room Table.
I Have already done the physical relationships between each of the 3 tables in the Database Diagram, in Visual Web Developer 2008 Express Edition under the Database Explorer
So i have created this form to accept user input:
this form is in a aspx page called AddRooms.aspx
Country Name:______________ (data sent to location table)
City Name:_________________ (data sent to location table)
Building Name:______________ (data sent to location table)
FloorID:[This is a DropDownList which is databinded to the Floor Table]
Room Name:_______________ (data sent to room table)
*Just imagine that the above is a form to accept user input
*With a hit of a submit button all data will be sent to their respective tables in the database
Now i know that i have to JOIN tables in my database in order for my application to work, but i have no experience performing JOIN, i need great guys like you to help me apply JOIN to the 3 tables mentioned above, do let me know if you have any doubts in what i am trying to do.
Do give me that code that i can either apply in the (VB environment Visual Web Developer 2008) and/or in Microsoft SQL Server 2005 environment
Just need the SQL Statment that i will need to construct to perform the JOIN i need to.
I want to build some paging functionality into my repeater (b4 you ask, datagrid not providing flexibility required for presentation).
I will have no problem with the VB logic but I will need to execute SQL that only returns results from x to y (e.g. results 21 thru 40 for page 2). I know I can do something like 'SELECT TOP 20 * FROM...', or something like it, for page 1. But, I'm not sure if it's possible to build SQL for the pages greater than 1. Any suggestions.
I had my IT dept. install sql server 2005 enterprise edition on a new windows server 2003. All other machines are running sql 2000 server on windows server 2000. I am a sa and local admin on all servers. I tried performing copy database, backup and restore and detach and attach to upgrade the sql server 2000 databases to 2005 and all fail. I followed all steps. I was imformed that IT installed sp2 for sql server 2005. It's like the servers dont talk to each other. Their all on the company's domain. I am wondering if something happen with the install but the IT dept. insist that everything went fine. It's strange that I can't perform a simple backup and restore it on the new server buy when I click on restore it doesn't let me browse to get the backup file on the 2000 server. I never had a problem in Sql 2000 with backup. Can it be the installation was corrupted somehow. It seems fine. I haven't created any new databases because I wanted to move the databases from sql 2000. Can anyone help me get a clue of what the problem is please?
Hi, Appreciated someone able to provide me some clu on how to perfom DBCC CHECKDB. Is it necessary to set the database to "Read only" before execute DBCC CHECKDB?
I had my IT dept. install sql server 2005 enterprise edition on a new windows server 2003. All other machines are running sql 2000 server on windows server 2000. I am a sa and local admin on all servers. I tried performing copy database, backup and restore and detach and attach to upgrade the sql server 2000 databases to 2005 and all fail. I followed all steps. I was imformed that IT installed sp2 for sql server 2005. It's like the servers dont talk to each other. Their all on the company's domain. I am wondering if something happen with the install but the IT dept. insist that everything went fine. It's strange that I can't perform a simple backup and restore it on the new server buy when I click on restore it doesn't let me browse to get the backup file on the 2000 server. I never had a problem in Sql 2000 with backup. Can it be the installation was corrupted somehow. It seems fine. I haven't created any new databases because I wanted to move the databases from sql 2000. Can anyone help me get a clue of what the problem is please?
hey guys--i need some expert advice!we have a Dell PE 2650 with 2GHz and 2MB RAM with 2000 Server. on it wehave about 6 MSSQL DB's. a couple of the DB's are the back-end for adecent sized web app (5-10 users on average, 20 users at most). manytimes, the cpu skyrockets on our db server when using the web app.sometimes things timeout, other times not. at this time, upgrading thehardware is not an option. aside from increasing the timeout periods, iwas wondering if windows 2003 server would utilize the processor better(even just a little bit?) enough to know the difference.should i attempt the upgrade, or is 2003 no more efficient withprocessor resources?thanks a bunch!
Hi everyone! I am building a database in VC++2005 Express, connecting to SQL Server. I planed to add Delete function to a button, and when clicked, the data with the specific ID according to the IDTextBox->Text would be deleted from the table. However, nothing happened. I don't know what's wrong with my program.
