SQL Server CE 3.5, Typed Dataset, Retrieving @@IDENTITY Of Inserts?
Mar 19, 2008
I'm at loss how I'm supposed to work with typed datasets and Sql Server Compact 3.5, when inserting records and I need to update my datatables with the primary key of newly inserted rows.
I've tried adding a RowUpdated handler to all tableadapters that look like this:
I've previously used this type of approach when working with an OleDbDatabase, which works just fine. But it doesn't work with Sql Server CE 3.5, and since it doesn't support stored procedures I can't fix it that way either. And it doesn't support commands in a batch (i.e appending the Insert command of the adapter with ";SELECT @@IDENTITY") so that doesn't work either...
So how are we supposed to use Sql Server CE 3.5? It's impossible together with datasets? Or am I missing something obvious?
Using VS 2008 Beta 2, SQL CE 3.5, on desktop, and Typed Datasets: The INSERT command of dataset table adapter does not return the updated identity of inserted row. Why?
also every time I want to modify the insert command to return the updated identity of inserted row, i get the error: "Unable to parse query text."
Hi, Is there any work around to passing a set of strings to a parameter in a Typed Dataset for example I am pasing '4226222172004','4212012182004' which I build on my code the number of items will vary passed on the user selection but since the Typed Dataset uses sp_executesql and the parameters are change to '''4226222172004'',''4212012182004''' Any ideas how I can format the Parameter I am passing.so that it will end like where in ( '4226222172004','4212012182004') instead of where in ('''4226222172004'',''4212012182004''') I again the number of parameters will very. Thanks Julio D
When I insert the fields using parameters, the params look like this: paramValues(10) = New SqlParameter("@RegHrs", SqlDbType.Decimal) paramValues(11) = New SqlParameter("@OTHrs", SqlDbType.Decimal) paramValues(12) = New SqlParameter("@TotHrs", SqlDbType.Decimal)
The fields in the SQL table are defined as: RegHrs - decimal (9,2) OTHrs - decimal (9,2) TotHrs - decimal (9,2)
Before I insert the row (from w/in the VB code), I stop the code and verify that the values being placed into the params are: 5.85 0 5.85
After the SQL insertion, the values w/in the SQL Table contain: 6 0 6
Hi, I am trying to use a typed dataset created using the Query builder which returns the data correctly when I use 'Execute Query' in query builder but as soon as I attempt to return a dataset using the GetData method created I get the following error: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints. Which is not very helpful, any ideas where the problem may be? I have tried switching off enforce constraints and setting the NullValue property of all strings to 'Emtpy' bu that has no effect. Thanks in advance
Hello,I'm using a typed dataset to access my database (SQL Express); I have a table that returns data, which two fields are null; I'm getting this error:{"Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints."}There are no foreign-key or unique key constraints, so it has to be a non-null issue; I changed the two fields in the table to have a null value of Empty instead of Throw Exception, but I don't understand what the problem is coming from... I'm at a loss.Thanks.
I'm need to use typed Dataset with CLR UDT, but when I'm trying to create TableAdapter in Dataset designer, I'm gettng error message: User-defined data types are not supported in DataSet designer
Hi all,I am using a Strongly Typed DataSet (ASP.NET 2.0) to insert new data into a SQL Server 2000 database, types of some fields in db are nvarchar. All thing work fine except I can not insert unicode data(Vietnamese language) into db.I can't find where to put prefix N. Please help me!!!
Hi, I have a little question. I searched google, and could not find good answer for this one. I have a stored procedure that returns two tables. Usually I generate a dataset out of a stored procedure by dragging it to the dataset. When I drag this one it creates a DS with only one table, the first one. How can I make it use both tables?
I am trying to upload a file in ASP.net 2.0 to a SQL database using the FileUpload control. I am doing this by way of a typed dataset.Here is my code.Dim rta As New ResponseTableAdapterDim rdt As ResponseDataTable = rta.GetResponseByID(1)Dim rr As ResponseRow = rdt(0)Dim fs As New FileStream(fu.PostedFile.FileName, FileMode.Open, FileAccess.Read)Dim br As New BinaryReader(fs)Dim image() As Byte = br.ReadBytes(fs.Length)br.Close()fs.Close()rr.UploadFile = imagerr.NameFile = fs.Namerta.Update(rdt)The code runs without an error but afterwards I find that nothing has been stored in the UploadFile cell in the database but the file name has been stored in the NameFile cell in the database. Any ideas?Your help is much appreciated. James
Like the subject says, I'm using strongly typed datasets. I'm using to designer to create the datasets and the methods. I can select and insert, but I can't update or delete. I right click on the adapter bar and select Add Query. I sleect 'Use SQL Statements'I select 'Update' (or 'Delete')I get a sql statement pane containing the word 'Update' ('Delete') and asking 'What data should the table load?'I can click on next, but anything else gives me errors. I'd list them, but I'm clearly doing something wrong and it's probably obvious. Diane
In our Microsoft Dynamics Nav instance we have a Sales Header Archive table - into which copies of the Sales Header are placed, with 3 items forming the compound key:
Document Number Version Occurrence number
so if doc 1 is archived, then the records would be
Doc# | Version | Occurrence # 1 | 1 | 1
When a second copy is archived a new record is added:
Doc# | Version | Occurrence # 1 | 1 | 1 1 | 1 | 2
and then when maybe a 3rd version is archived a 3rd entry added
This is for EACH document and I now need to retrieve the dataset which is the latest version of each document... but I'm drawing a blank!
If I
select [Doc#], max([Version]) as [V], max([Occurrence #]) from (table) group by [Doc#]
then I get the distinct list of docs, but I now need to use this list to select the records which match this criteria, from this table.
How do I select just these?
I thought (wrongly) that I could simply say:
Select * from Invoice Table where Invoice.[Doc#], Invoice.[V], Invoice.[Occurrence #] in (select [Doc#], max([Version]) as [V], max([Occurrence #]) from (table) group by [Doc#])
I am using following queries in a stored procedure.This stored procedure is executed through a dot net application.
DECLARE @DEPTNBR BIGINT SELECT @DEPTNBR = DEPTNBR FROM DEPARTMENT_DETAILS WITH (UPDLOCK,READPAST) WHERE STATUS= 1 UPDATE DEPARTMENT_DETAILS SET STATUS= 0 WHERE DEPTNBR = @DEPTNBR SELECT DEPTNBR,DEPTNAME,DEPTLOC FROM DEPARTMENT_DETAILS WHERE DEPTNBR = @DEPTNBR ​
From my queries,I am providing a available department information.Each user needs to get unique available department information.But when more number of users using the application concurrently, multiple users getting same department information.How to solve my problem?I always wants to get unique department information even though multiple users using the application concurrently.
Hey All, I was trying to use a typed dataset to create a very simple DAL. I found that the code generated for the INSERT statement includes an identity field the table has. That can obviously never work (unless identity_insert is set, which it is not). My question is whether it is possible to control this insert statement generation? Is there a property I am missing somewhere? My solution was to change the INSERT statement on the DataTableAdapter, but that seems awkward for me to have to do that.. Thanks, Yuval
Ok I think I will need to use a temp table for this and there is no code to share as of yet. Here is the intent.
I need to insert data into two tables (a header and detail table) the Header Table will give me lets say an order number and this order number needs to be placed on the corresponding detail lines in the detail table.
Now if I were inserting a single invoice with one or more detail lines EASY, just set @@Identity to a variable and do a second insert statement.
What is happening is I will be importing a ton of Invoice headers and inserting those into the header table. The details are already in the database across various tables and and I will do that insert based on a select with some joins. As stated I need to get the invoice number from IDENTITY of the header table for each DETAIL insert.
I am assuming the only way to do this is with a loop... Insert one header, get identity; Insert the detail table and include the IDENTITY variable, and repeat.
Iam in a situtation where i have a query Which Inserts into a table from Select statement. But there is another table which is dependent on the Primay key of the inserted table. Since the insert is multiple iam not able to use the @@Identity. Can some one suggest me How can i over come this situtation. Also Triggers cant be used as the the records are of huge numbers.
Eg:- INSERT INTO Users (FirstName, SecondName) SELECT FirstName, SecondName From Old_Users
INSERT INTO UserDependent(UserID,OtherFields) VALUES(@@Identity,'SomeOtherValue')
I am working on creating a report which is retrieving data from a SQL 2005 database and being displayed in a C#.net web page. Presently, I am binding the dataset to a ASP:Gridview on the web page. I am currently retrieving most of the needed fields using the following SQL statement:PROCEDURE [dbo].[pr_getReportTickets] @DateCreated nvarchar(15) ASBEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON; -- Insert statements for procedure hereSELECT tbl_Queue.num_TicketNumber AS TicketID , tbl_Users.str_Name AS Technician , tbl_Queue.str_QueueLocator AS TechNTID , tbl_Queue.dat_ReceivedRequest AS dateCreated , tbl_Queue.dat_DueDate AS DueDate , tbl_Queue.str_TaskName AS TicketTitle , tbl_Queue.str_Requestor AS RequestorNTID --, I need most current dat_TimeStamp from tbl_Notes here for this record --, I need most current int_PercentComplete from tbl_Notes here for this record --, I need to sum up all of int_MinutesWorked fields from tbl_Notes here for this record , MasterEmp.dbo.fn_FormatFullName(tbl_employee.str_fname, tbl_employee.str_lname) AS RequestorName , tbl_Queue.str_TicketType AS TicketType , tbl_Status.str_TaskStatus AS TicketStatus , tbl_Severity.str_Priority , tbl_Complexity.str_Complexity , tbl_Severity.str_Priority + N' / ' + tbl_Complexity.str_Complexity AS Priority , tbl_Queue.dat_CompleteDate as DateCompleted FROM dbo.tbl_Queue LEFT OUTER JOIN MasterEmp.dbo.tbl_employee AS tbl_employee ON dbo.tbl_Queue.str_Requestor = tbl_employee.str_ntid LEFT OUTER JOIN tbl_Users ON tbl_Queue.str_QueueLocator = tbl_Users.str_ntid LEFT OUTER JOIN tbl_Status ON tbl_Queue.num_Status_CD = tbl_Status.num_Status_CD LEFT OUTER JOIN tbl_Severity ON tbl_Queue.str_Severity = tbl_Severity.str_Severity LEFT OUTER JOIN tbl_Complexity ON tbl_Queue.int_ComplexID = tbl_Complexity.int_ComplexID WHERE (dbo.tbl_Queue.dat_ReceivedRequest > CONVERT(DATETIME, @DateCreated, 102)) ORDER BY TicketType, tbl_Queue.str_Severity I also have another table called tbl_Notes. This table contains an unlimited quantity of records for every “num_TicketNumber�. This table contains the following fields: num_TicketNumber, str_TechRep, str_Notes, dat_TimeStamp, int_PercentComplete and int_MinutesWorked I need to add two more fields to the query, but I do not know how to tell the SQL statement how to retrieve the data for the specfic record and inbed the fields into the Dataset being returned from the database to the web page.1) The first field I need is the most current recorded Date field from the tbl_Notes table for the each of the records returned in the above SQL statement. Similar to: SELECT TOP (1) dat_TimeStamp FROM tbl_Notes WHERE(num_TicketNumber = xxxx) ORDER BY dat_TimeStamp DESC2) The other field I need to return with the Dataset is the sum of the int_MinutesWorked for each of the tickets being retrieved. Similar to: SELECT SUM(int_MinutesWorked) AS TotalMinutesFROM tbl_Notes WHERE (num_TicketNumber = 49)
Hey, I've been having problems - when trying to insert a new row i've been trying to get back the unique ID for that row. I've added "SELECT @MY_ID = SCOPE_IDENTITY();" to my query but I am unable get the data. If anyone has a better approach to this let me know because I am having lots of problems. Thanks,Lang
Hi all, I am writing a portion of an app that is of intensely high online eCommerce usage. I have a question about identity columns and locking or not. What I am doing is, I have two tables (normalized), one is OrderDemographics(firstname,lastname,ccum,etc) the other is OrderItems. I have the primary key of OrderDemographics as a column called 'ID' (an Identity Integer that is incrementing). In the OrderItems table, the 'OrderID' column is a foreign key to the OrderDemographics Primary Key column 'ID'. What I have previously done is to insert the demographics into OrderDemographics, then do a 'select top 1 ID from OrderDemographics order by ID DESC' to get that last ID, since you can't tell what it is until you add another row.... The problem is, there's up to 20,000 users/sessions at once and there is a possiblity that in the fraction of a second it takes to select back that ID integer and use it for the initial OrderItems row, some other user might have clicked 'order' a fraction of a second after the first user and created another row in OrderDemographics, thus incrementing the ID column and throwing all the items that Customer #1 orders into Customer #2's order.... How do I lock a SQL table or lock the Application in .NET to handle this problem and keep it from occurring? Thanks, appreciate it.
The following code inserts a record into a table. I now wish to retrieve the IDENTITY of that entry into a variable so that I can use it again as input for other inserts. Can someone offer assistance in handling this.... I tried several alternatives that I found on the internet but none seem to work... Thanks! Dim objConn3 As SqlConnectionDim mySettings3 As New NameValueCollectionmySettings3 = AppSettingsDim strConn3 As StringstrConn3 = mySettings3("connString")objConn3 = New SqlConnection(strConn3)Dim strInsertPatient As StringDim cmdInsert As SqlCommandDim strddlSex As StringDim strddlPatientState As StringDim rowsAffected As Integer strddlSex = ddlSex.SelectedItem.TextstrddlPatientState = ddlPatientState.SelectedItem.TextstrInsertPatient = "Insert ClinicalPatient ( UserID, Accession, FirstName, MI, " & _"LastName, MedRecord, ddlSex, DOB, Address1, Address2, City, Suite, strddlPatientState, " & _"ZIP, HomeTelephone, OutsideNYC, ClinicalImpression, Today_Date_Month, Today_Date_Day, " & _"Today_Date_Year) Values (@UserID, @Accession, @FirstName, @MI, @LastName, @MedRecord, " & _"'" & strddlSex & "', @DOB, @Address1, @Address2, @City, @Suite , '" & strddlPatientState & "', " & _"@ZIP, @HomeTelephone, @OutsideNYC, @ClinicalImpression, @Today_Date_Month, @Today_Date_Day, " & _"@Today_Date_Year)SELECT @@IDENTITY AS NewID SET NOCOUNT OFF" cmdInsert = New SqlCommand(strInsertPatient, objConn3) cmdInsert.Parameters.Add("@UserID", "Joe For Now")cmdInsert.Parameters.Add("@Accession", Accession.Text)cmdInsert.Parameters.Add("@LastName", LastName.Text)cmdInsert.Parameters.Add("@MI", MI.Text)cmdInsert.Parameters.Add("@FirstName", FirstName.Text)cmdInsert.Parameters.Add("@MedRecord", MedRecord.Text)cmdInsert.Parameters.Add("@ddlSex", strddlSex)cmdInsert.Parameters.Add("@DOB", DOB.Text)cmdInsert.Parameters.Add("@Address1", Address1.Text)cmdInsert.Parameters.Add("@Address2", Address2.Text)cmdInsert.Parameters.Add("@City", City.Text)cmdInsert.Parameters.Add("@Suite", Suite.Text)cmdInsert.Parameters.Add("@strddlPatientState", strddlPatientState)cmdInsert.Parameters.Add("@ZIP", zip.Text)cmdInsert.Parameters.Add("@HomeTelephone", Phone.Text)cmdInsert.Parameters.Add("@OutsideNYC", OutsideNYC.Text)cmdInsert.Parameters.Add("@ClinicalImpression", ClinicalImpression.Text)cmdInsert.Parameters.Add("@Today_Date_Month", Today_Date_Month.Text)cmdInsert.Parameters.Add("@Today_Date_Day", Today_Date_Day.Text)cmdInsert.Parameters.Add("@Today_Date_Year", Today_Date_Year.Text) objConn3.Open()cmdInsert.ExecuteNonQuery()objConn3.Close()
I have a database that has a tble with a field that autoincrements as a primary key. meanig that the field type is BigInteger and it is set up as my Identity Column. Now when I insert a new record that field gets updated automaticly. How can I get this value in the same operation as my insert? meaning, in 1 sub, I insert a new record but then need to retieve the Identity Value. All in the same procedure. Waht is the way to achive this please? Marc
I have 2 tables - tblOrders and tblOrderDetails. Every time an order is placed, 2 INSERT statements are executed. The first one enters the general order and customer information in the tblOrders table:INSERT INTO tblOrders (custname, custdetails, orderdate) VALUES (@custname, @custdetails, @orderdate)The primary key in this table is OrderID which is an Identity column. This is the foreign key in the tblOrderDetails table.I'm trying to get the Identity value from the first INSERT statement to use in the second INSERT statement:INSERT INTO tblOrderDetails (orderid, productid, productcost) VALUES (@orderid, @productid, @productcost) How do i obtain this value and how would I supply it to the second INSERT statement?
I'm using transactions with my SqlConnection ( sqlConnection.BeginTransaction() ).
I do an Insert into my User table, and then subsequently use the generated identity ( via @@identity ) to make an insert into another table. The foreign key relationship is dependant on the generated identity. For some reason with transactions, I can't retrieve the insert identity (it always returns as 1). However, I need the inserts to be under a transaction so that one cannot succeed while the other fails. Does anyone know a way around this problem?
So heres a simplefied explanation of what I'm trying to do:
Begin Transaction Insert into User Table Retrieve Inserted Identity (userID) via @@Identity Insert into UserContact table, using userID as the foreign key. Commit Transaction.
Because of the transaction, userID is 1, therefore an insert cannot be made into the UserContact table because of the foreign key constraint. I need this to be a transaction in case one or the other fails. Any ideas??
Hello!I use a procedure to insert a new row into a table with an identitycolumn. The procedure has an output parameter which gives me theinserted identity value. This worked well for a long time. Now theidentity value is over 700.000 and I get errors whiles retrieving theinserted identitiy value. If I delete rows and reset the identityeverything works well again. So I think it is a data type problem.My Procedure:create procedure InsertProduct@NEWID int outputasbeginset nocount oninsert into PRODUCT(D_CREATED)values(getdate()+'')set nocount offselect @NEWID = @@IDENTITYendMy C# code:SqlCommand comm = new SqlCommand("InsertProduct", sqlCon);comm.CommandType = CommandType.StoredProcedure;comm.Parameters.Add(new SqlParameter("@NEWID",System.Data.SqlDbType.Int)).Direction =System.Data.ParameterDirection.Output;try{SqlDataReader sqlRead = comm.ExecuteReader();object o = comm.Parameters["@NEWID"].Value;//...}catch ( Exception ex ){throw ex;}The object o is alwaya System.DbNull. I also tried to use bigint.Any hints are welcomeCiaoSusanne
Hi, I have 2 tables in my database PrescriptionHeader and PrescriptionDetails.My PrescriptionHeader table has the following fields:PrescriptionID -identity fieldPatientID PatientfNamePatientlname PrescriptionDetails table has the following fields:PrescriptionDetailID -identityPrescriptionID -from PrescriptionHeader table MedicineDosage The function InsertPrescription inserts values into the table PrescriptionHeader. I want the same function to then insert the value of MedicineDosage into PrescriptionDetails with the same PrescriptionID inserted into PrescriptionHeader. How do I tell the function to insert the PrescriptionID that was automatically inserted into PrescriptionHeader also into table PrescriptionDetails . How do I return the identity before proceeding to insert into PrescriptionDetails table?ThanksFunction InsertPrescription(ByVal PatientID As String, _ByVal PatientFname As String, _ByVal Patientlname As String, ByVal MedicineDosage as String)Dim DBAdapter As SqlDataAdapterDim DBDataSet As DataSetDim SQLString As StringDim DBCommandBuilder As SqlCommandBuilderSQLString = "SELECT * FROM PrescriptionHeader WHERE PrescriptionId = ''"DBAdapter = New SqlDataAdapter(SQLString, DBConnection)DBDataSet = New DataSetDBAdapter.Fill(DBDataSet)Dim AddedRow As DataRow = DBDataSet.Tables(0).NewRow()AddedRow("PatientID") = PatientIDAddedRow("PatientfName") = PatientFnameAddedRow("Patientlname") = PatientlnameDBDataSet.Tables(0).Rows.Add(AddedRow)DBCommandBuilder = New SqlCommandBuilder(DBAdapter)DBAdapter.Update(DBDataSet) End Function
I have a report with multiple datasets, the first of which pulls in data based on user entered parameters (sales date range and property use codes). Dataset1 pulls property id's and other sales data from a table (2014_COST) based on the user's parameters. I have set up another table (AUDITS) that I would like to use in dataset6. This table has 3 columns (Property ID's, Sales Price and Sales Date). I would like for dataset6 to pull the Property ID's that are NOT contained in the results from dataset1. In other words, I'd like the results of dataset6 to show me the property id's that are contained in the AUDITS table but which are not being pulled into dataset1. Both tables are in the same database.
Using VS 2008 I got a Windows Smart Device project targeting WM6 Standard and using .NET CF 3.5. I add a new database file = creating an empty Compact 3.5 database (creates an sdf-file in my project). Then create an empty dataset in the wizard (creates an xsd-file in my project). Then I add a couple of tables in the database. After that I want to use my earlier created dataset. I mark the xsd-file and looks in Poperties. I get the error when I try to change Custom Tool value from 'MSDataSetGenerator' to 'MSResultSetGenerator'. Why????
Is it possible to return typed data in an Endpoint for an ASP.Net Web Reference to Proxy? If so, is there any specific terminology I should be aware of to target my search?
I realize there is a choice between Object (returns a dataset or error) or dataset, but the automatically generated WebReference Proxy in ASP.Net (2.0) is untyped and we can't change the typing there as you have to remove the entire WebReference to pick up new WebMethods (or changes to signitures I'd assume).
I'm able to create my own typed proxy as a psuedo-DAL assembly which takes the WebReference and cast rows/objects into typed rows/objects one at a time, but this seems like a lot of work and probobly not the best practice.
I have a DAL that uses Typed DataSets (not directly, the DAL references and calls the dataset methods) and I am receiving a "There is already an open DataReader associated with this Command which must be closed first." error when I render an ASP.NET page where two imgs need to retrieve two different versions of an image (a thumbnail and a full sized image).I am using SQL Server 2005, ASP.NET 2.0, and my connection string includes the MARS attribute set to true. This is the method in the SqlServer DAL, _images is a typed table adapter:public override Image SelectImage(Guid? id) { // TODO: Find out why MARS feature isn't working! DataSet.ImageDataTable dt = _images.SelectImageById(id); <-- Exception occurs here if ((dt != null) && dt.Count == 1) { DataSet.ImageRow row = dt[0]; Guid? keyId = null; if (!row.IsKeyIdNull()) { keyId = row.KeyId; } // Success return new Image(row.Id, keyId, row.Path, row.Caption); } return null; } // This is the method that is called for both images, which calls the DALpublic class EntitySearch{ public static Image ImageById(Guid id) { return _dal.SelectImage(id); }}// These are the code-behind methods that the image response strings will come from...imgThumbnail.ImageUrl = String.Format("../Services/ImageBroker.aspx?img={0}&mode=Thumbnail", image.Id);imgFullImage.ImageUrl = String.Format("../Services/ImageBroker.aspx?img={0}&mode=Image", image.Id); // And finally here is the code in the broker class that saves the images to the response streamImage image = EntitySearch.ImageById(imageId);using (Picture picture = (mode == ImageMode.Image) ? image.Picture : image.Thumbnail){ Picture.Save(response.OutputStream, ImageFormat.Jpeg);}So the final snippet of code is being called twice, and it crashes. I have tried closing the connection and reopening it as a workaround but this only yields strange results, though it intermittently does load the images.Can anyone spot the issue?
I am using typed data sets. When a certain line of C# code is reached, I get the following error message: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints. Here is my source code. I altered the table to remove all contraints and primary keys, but I still get the error message. The erroroccurs when the last line of code is reached. (_DeltaTable = myAdaptor.GetData();) The code is listed below. Does anyone know whatis going on? calculateValuesAndAveragesTableAdapters.FundamentalsTableAdapter myAdaptor = new calculateValuesAndAveragesTableAdapters.FundamentalsTableAdapter(); calculateValuesAndAverages.FundamentalsDataTable _DeltaTable; _DeltaTable = myAdaptor.GetData(); // Error occurs on this line
I dragged two tables into the dataset designer. And I have a query with a resultset over both of the tables (joined).Is there ANY way I can have a strongly typed datatable out of the resultset?The automatically created dataset adapters won't allow me to create a tableadapter or datatable for the joined resultset but for one single table at a time only.Any solution to that? Theoretically it should be possible since I don't "lose" any type information with a join.. why can't I have a strongly typed datatable over the resultset?The join is not very sophisticated. In fact it couldn't be any more simple.(I'm refering to my previously posted question at http://forums.asp.net/t/1220481.aspx)
I'm looking to serialize some NVP data into an XML blob. I plan to put a primary xml index on the column, but my question is, would putting an XSD on the column speed up any queries, or would it just ensure format? I know that with selective xml indices, you can do things like specify the datatype associated with the xpath which can further optimize retrieval.
