I understand the basics for doing an insert. Their seems to be many ways of achieving the same thing in .net. I have used the tableadpaters and sqlcommand functionality to achieve this. My one question is how foregin keys should be created in associated tables. EG so if i create a new record entry in one table and the primary key for that entry is a foreign key in another table, do I need to call 2 table adapters, or run 2 sqlcommands(taking the primary key from the first traction and use this in the next transaction)?
Any help or direction for some good tutorials on this would be much appreciated.
Ok, I have a page on my website where we can add products to our database. We are a music store, and most products have different versions or colors. I've created 2 tables, Products and Subproducts. The products table may hold info like Fender Stratocaster, and the subproducts would hold colors (Blue, Sunburst, etc). The subproducts table has an integer field called MainProductID, which is linked to the mainproducts table field RecordID. So far the page uses a wizard where if first creates the main product using an sql datasource. After the data has been added to the main products table, my page gives you the opportunity to add different sub products. The problem I am having is actually feeding in the RecordID from the main products table to my insert parameter on the sub products data source. This is what I have tried so far: There is a formview on the page that is bound to the main products table, after the entry is created I can physically see the info on my screen, so I know the data is there at my disposal SubProductsDataSource.InsertParameters.Add("@MainProductID", Formview1.datakey.item("RecordID"))SubProductsDataSource.Insert()Using this adds the data to the table, but the MainProductID is nullalso is there a cheap little way to refresh a page, because when I upload the product images I have it go to the next step where you are supposed to be able to see the images you uploaded, I don't see them which makes me think that the page is loading faster than the images are uploading. Thanks
hello, I am beginner for asp.net and sql server. I used Sql server manegement studio full version and I exported my aspnetdb which was created by VS2005 to my host sql server. I have a question: relational tables are not relational no longer. I noticed that when I created database diagram. what is wrong by exporting? thanks for your helps...
Hi, I am populating a datagrid with data from one sql table, I add additional columns and then wish to write it back out to another table. I have written the following code to acheive this, however it keeps throwing the follwing exception - "Update requites a valid UpdateComman when passed a DataRow collection with modified rows" I've looked and I can see what the problem is, can anybody help please? Private Sub FillData() 'SQL connection Me.sqlconnection = New System.Data.SqlClient.SqlConnection Me.sqlconnection.ConnectionString = ConfigurationSettings.AppSettings("CuroConnection")
Dim sql As String If Request("action") = "gen" Then sql = "select item from tblPickList where GroupName = 'xxx'AND Category = '" & Category2 & "' ORDER BY item ASC" ElseIf Request("action") = "fav" Then sql = "select identifiertext as item from tblfavourites where HRID = " & Session("hrid") & " and type = 3 ORDER BY identifiertext ASC" ElseIf Request("action") = "spec" Then sql = "select item from tblPickList where GroupName = '" & GroupID & "' AND Category = '" & Category2 & "' ORDER BY item ASC" End If
ds = New DataSet da = New SqlClient.SqlDataAdapter(sql, sqlconnection)
Try sqlconnection.Open() da.Fill(ds, "tblPickListTemp") sqlconnection.Close() Catch ex As Exception sqlconnection.Close() End Try
ds.Tables(0).Columns.Add("HRID") ds.Tables(0).Columns.Add("Flag") 'may possibly add a favourites column here at a later date to ensure no duplication
Dim dr As DataRow For Each dr In ds.Tables("tblPickListTemp").Rows dr("HRID") = Session("hrid") dr("Flag") = 0 Next
DgrdFavourites.DataSource = ds DgrdFavourites.DataBind() End Sub
Public Sub CreateTempRecords()
'SQL connection Me.sqlconnection = New System.Data.SqlClient.SqlConnection Me.sqlcommand = New System.Data.SqlClient.SqlCommand Me.da = New SqlClient.SqlDataAdapter Me.sqlconnection.ConnectionString = ConfigurationSettings.AppSettings("CuroConnection")
Dim sql As String sql = "Insert into tblPickListTemp (Item, HRID, Flag) values (@Item, @HRID, @Flag)" sqlcommand.CommandText = sql sqlcommand.Connection = sqlconnection
sqlcommand.Parameters.Add("@Item", "Item") sqlcommand.Parameters.Add("@HRID", "HRID") sqlcommand.Parameters.Add("@Flag", "Flag") da.InsertCommand = sqlcommand da.Update(ds.Tables(0)) End Sub
this does not work, it does work however if i replace the Me.textboxhello.Text with a value in quotation marks or with another text box not linked to that feild in the table... it does not work with the relevant text box!!!!!!!!
Hy, again! I am at the begining of an application. I have some modules that insert, delete and update only one row at one table. My question is should I use dataadapter.Update() or ExecuteNonQuery(). I prefer ExecuteNonQuery because I want to build a class : DataLayer to implement my own InsertProcedure(), UpdateProcedure(),DeleteProcedure(). I want speed in my application, so which is the best: dataadapter.Update() OR ExecuteNonQuery(). Thank you!
I am having trouble getting an Update call to actually update records. The select statement is a stored procedure which is uses inner joins to link to property tables. The update, insert, and delete commands were generated by Visual Studio and only affect the primary table. So, to provide a simple example, I have a customer table with UID, Name, and LanguageID and a seperate table with LanguageID and LanguageDescription. The stored procedure can be used to populate a datagrid with all results (this works). The stored procedure also populates an edit page with one UID (this works). After the edit is completed, I attempt to update the dataset, which only has one row at this time, which shows that it has been modified. The Update modifies 0 rows and raises no exceptions. Is this because the update, insert, and delete statements do not match up one-to-one with the dataset? If so, what are my choices?
I'm using DataAdapter.Update() to update data in a table. My question is; how do I create a trigger that works after the update has completely finished?
For example if my update adds 50 new rows to a table the trigger I've currently got fires after each new row that is added ie 50 times in total. Is it possible to get it to trigger after the last (ie 50th) row is added???
My DataAdapter.Update() Method is running this query against my database and all the parameters and the formatting looks correct to me. I was wondering if anyone could identify obvious errors.... Thanks!
I'm trying to update 2 tables in SQL (say 2 Costumers table). 1 Lists all costumers per location( so 1 costumer can be placed in multiple locations), while the other is by location with contact details. Is it possible for me to update both pages in 1 web update page?????
Hi, I am using sqlServer 2000.I want to insert as well as update Two Tables at the Same Time using storedprocedure.Both My Tables Have the Same columns only difference being the name.My Tables are, ADDRESS AND ADDRESSBOOK and their values are Name, Address, Place, Date,City. How can achieve this task using stored Procedures.?
Hi, not sure if this is the right forum for this question. I am creating relational tables for the first time in sql server express. I will have an orderItems table and an orders table. the MenuItems table is the problem. It is a catalogue of books. There will be about ten columns. all are unique to each book. i.e isbn number, title, author, publisher etc. but ten columns seems to be quite cumbersome. it may be easier to break the table down into two tables (i.e. primary details and secondary details perhaps) However to populate the table in the first place it would be easier to have it as one table instead of opening and closing 2 tables Adding the odd book to the two tables in the future would not be a problem. so the question is can i create a table and then brak it into two relational tables afterwards. If so how do i do this. this is my foirst go at relational tables and i am still trying to get a handle on visualising them. If my logic is up the wall please let me know.... Nick
We are trying to update and insert to two different tables using the code below. However the code never excutes the second insert statement. (see noted area) Does anybody have any ideas what we are doing wrong? Any help would greatly be appreciated. set ANSI_NULLS ON set QUOTED_IDENTIFIER ON GO
ALTER PROCEDURE [dbo].[AddPhoto] @AlbumID int, @Caption nvarchar(MAX) AS INSERT INTO [Photos] ( [AlbumID], [Caption], [Location], [LastModified]) VALUES ( @AlbumID, @Caption, 'tmpLocation', /* tmpLocation needed because app broke when Location column set to Allow NULLs */ GetDate()) /* Retrieve generated PhotoID */ DECLARE @PhotoID int SET @PhotoID = SCOPE_IDENTITY() /* Build unique location path from album and photo ID */ DECLARE @Location nvarchar(MAX) SET @Location = '' + CONVERT(nvarchar(10), @AlbumID) + '' + CONVERT(nvarchar(10),@PhotoID) + '.jpg' /* Update photo with new location path */ UPDATE [Photos] SET [Location] = @Location WHERE [PhotoID] = @PhotoID
/* Update photo with new location path */ ******************************************The code never executes the statement below******************************************** INSERT INTO [PhotoDefault] ( [pidm], [defaultPhoto], [activityDate]) VALUES ( '1234', 'test', getdate() ) /* Return PhotoID and Location */
How do i update the stats of tables when we insert data into it. I believe Auto stats update happens only when 500+ 20% of the rows are changed for a table. Once we insert say some 1000 records in to a particular table the query time takes too long (more than 1 min). The same query executes faster once i manually update the stats.
Hello, I have a Stored Procedure which insterts into Orders table. Orders table is the parent table, with primary key OrdersID. I also have a child table, Client, with foreign key OrdersID. I want it to insert the data into the orders table, and at the same time insert the OrdersID into the FK of the child table. Any info would be appreciated. I have no idea how to do it. My SP is as follows:ALTER PROCEDURE dbo.jobInsert @ClientFileNumber varchar(50),@Identity int OUT
ASINSERT Orders(ClientFileNumber, DateTimeReceived) VALUES(@ClientFileNumber, GetDate()) SET @Identity = SCOPE_IDENTITY()
I have two tables with data that I need to get and display in a combobox. What I want to do is have the parent table listed in the combobox with all of its children indented. Sorted by parent then by child.
This SQL seems to be more complex than I have done previously
I can get all of the records from both tables easily:
Code: SELECT strName, ID FROM tblParents as pp INNER JOIN tblChildren as cc ON cc.pID = pp.uiGUID UNION (SELECT strName FROM tblChildren as c INNER JOIN tblParents as p ON c.pID = p.ID)
However, this simply returns a list that is not ordered in any fashion. I'd like to have all of the parent's children shown under the parent name (there is only 1 parent per child and multiple children per parent)
Hi all,can somebody help to write this stored procedure Table1 Table2LogID MigIDUserMove LogIDUserNew Domain User The two tables are inner join with LogID.If in Table2 LogID=NULL then create new dataset in Table1 (INSERT)and then Update LogID in Table2IF in Table2 LogID= 2 (or something else) then update the dataset in Table1 with the same LogID Thanks
I want to be able to duplicate every single record that is inserted or updated in a particular table to another table, but not the delete. Is the best way to set-up a trigger? If so can anyone provide me with an example of how to do this? Also could you just duplicate certain columns in the row I would you have to do all columns?
I have created two table with same data structure. I need realtime effects (i.e. data) on both tables - Table1 & Table2.
Following Points to Consider.
1. Both tables are in the same database.
2. Table1 is using for data entry & I wants the same data in the Table2.
3. If any row insert, update & delete occers on Table1, the same effect should be done on Table2.
4. I need real time data insert, update & delete on Table2.
I knew that using triggers it could be possible, I have successfully created a trigger for inserting new rows (using logical table "Inserted") in Table2 but not succeed for update & delete yet.
I want to understand how can I impletement this successfully without any ambiguity.
I have attached data structure for tables. Thanx...
i've read the transact-sql command, i known that the select command use to retrieve many fields from many tables with one command select * from table1,table2 yes, but i ' ve not seen the way to add,delete or update those fields from those tables with one command...
Is it possible? why? I don't have any idea , can u help me I want to know the sql commands , if it's possible
I'm shredding the below xml into relational tables. Each element of the xml has it's own table and there is a foreign key to join the tables, you can see this in the below picture. The process I follow is each relational table I always bring the nesecary xml and store it in the table and when shredding I always look at the parent table.So for example when processing the seat table, I use seat xml from the parent route table, also taking the ROUTEID from the route table. The reason I do this is all about taking the id from the previous step to create the relationships between the tables. without taking the xml down to the tables?The problem with this approach is I have xml stored in most tables and the tables are becoming very large.
I would like to update/insert data into a Orderhearder Table along with the related details into the corrosponding OrderDetails Tables. Can this be done using a single stored procedure or do we have to make one call to the UpdateOrderHeader Stored Procedure and loop thru all the details and call the UpdateOrderDetails Stored Procedure. How do we handle the Transactions in such a case ?
I have a fundamental problem with how CDC works for bulk updates.When CDC enabled table is updated for single row - My CDC system tables its recording it as update (3 & 4) which is perfect and what it should be. No Complains!But when I do a bulk update in the same CDC enabled tables for the same columns - My CDC system tables its recording as delete and then insert (1 & 2). This is not correct and this is what my problem is. We used triggers before CDC we did not face this problem with triggers every thing was fine with triggers other than performance.The way how the CDC is handling the bulk update is a big problem for me because based on the output of CDC system tables we are doing some migration work to legacy system.
It will be impossible for me to go and change my migration logic scripts because we have 100's or procedures in it.Is it a know problem with CDC? Is there any solution in CDC when a bulk update happens on a table the CDC system tables record it as updates. I don't think CDC 'net changes' in this situation because the net change would show as single inserted row.If this can't be done with CDC then I have to completely abandon CDC and go back to triggers..
Hi all, I am trying to create a diagram for our database, during the creating, I create some of the relationships which were not there(basically our original database is not relational database, that's why I am doing it) So sometimes I have to chage data type in order to create a relationship for the coloumns in different tables. i.e. change char(16) to varchar(7) (I checked the field that make sure all the data in this field is <= 7 characters)
But when I saved the diagram, there is an error message that state: Errors were encountered during the save process. Some of your database objects are not saved on your diagram.
'agent' table saved successfully 'VisitUSA' table - Unable to create relationship 'FK_VisitUSA_agent'. ODBC error: [Microsoft][ODBC SQL Server Driver][SQL Server]ALTER TABLE statement conflicted with COLUMN FOREIGN KEY constraint 'FK_VisitUSA_agent'. The conflict occurred in database 'CMC', table 'agent', column 'AgentCode'.
What does that mean? is it caused by some of the agentcode data in VisitUSA table which is not in agent table? Thanks! Betty
If I have a table with 1 or more Nullable fields and I want to make sure that when an INSERT or UPDATE occurs and one or more of these fields are left to NULL either explicitly or implicitly is there I can set these to non-null values without interfering with the INSERT or UPDATE in as far as the other fields in the table?
EXAMPLE:
CREATE TABLE dbo.MYTABLE( ID NUMERIC(18,0) IDENTITY(1,1) NOT NULL, FirstName VARCHAR(50) NULL, LastName VARCHAR(50) NULL,
[Code] ....
If an INSERT looks like any of the following what can I do to change the NULL being assigned to DateAdded to a real date, preferable the value of GetDate() at the time of the insert? I've heard of INSTEAD of Triggers but I'm not trying tto over rise the entire INSERT or update just the on (maybe 2) fields that are being left as null or explicitly set to null. The same would apply for any UPDATE where DateModified is not specified or explicitly set to NULL. I would want to change it so that DateModified is not null on any UPDATE.
INSERT INTO dbo.MYTABLE( FirstName, LastName, DateAdded) VALUES('John','Smith',NULL)
INSERT INTO dbo.MYTABLE( FirstName, LastName) VALUES('John','Smith')
INSERT INTO dbo.MYTABLE( FirstName, LastName, DateAdded) SELECT FirstName, LastName, NULL FROM MYOTHERTABLE
I have a web form with a text field that needs to take in as much as the user decides to type and insert it into an nvarchar(max) field in the database behind. I've tried using the new .write() method in my update statement, but it cuts off the text after a while. Is there a way to insert/update in SQL 2005 this without resorting to Bulk Insert? It bloats the transaction log and turning the logging off requires a call to sp_dboptions (or a straight-up ALTER DATABASE), which I'd like to avoid if I can.
I'm working on inserting data into a table in a database. The table has two separate triggers, one for insert and one for update (I don't like it this way, but that's how it's been for years). When there is a normal insert, done via a program, it looks like the triggers work fine. When I run an insert manually via a script, the first insert trigger will run, but the update trigger will fail. I narrowed down the issue to a root cause.
This root issue is due to both triggers using the same temporary table name. When the second trigger runs, there's an error stating that a few columns don't exist. I went to my test server and test db and changed the update trigger so that the temporary table is different than the insert trigger temporary table, the triggers work fine. The weird thing is that if the temporary table already exists, when the second trigger tries to create the temporary table, I would expect it to fail and say that it already exists.I'm probably just going to update the trigger tonight and change the temporary table name.
