I have a datatable that contains 8 columns. To make this more presentable I have managed to pivot three of these columns. That will not do since I then loose 5 columns of information. To overcome this problem, I thought of just joining the two tables in vb.net.This seems more difficult than expected. LINQ are hard to learn compared to SQL. I have tried to pivot the query in SQL but am not able to.Here are the query:
I'm having a hard time joining 2 datatables and have the joined datatable as result. First datatable (labels) holds data including a printerid. Second datatable (printers) holds printer references (id > unc). I would like to have as endresult (joined) a datatable with all data from the first datatable with the field (unc) of the second datatable. [Code]
I am using Microsoft Access database. Since Access Database Table cannot have more than 255 columns, I am using vertical database partition technique where I have splitted informations into 5 different tables. Each table has 100 columns, and first column is primary key. Now I need to read data from these five tables so that I can export it into Excel file.
I have two datatables, which come from different sources. One is Sales, the other is Products. What I'd like to do is create a filtered version of Sales, in that in that it contains Sales which have a matching ProductID in Products.
When I declare two datatables and fill them both from a datatable returned by a function in class, that when i filter the one it seems to filter the other aswell?
For example:
I declare the datatable and initiate my class:
Dim DatatableOne As New Datatable Dim DatatableTwo As New Datatable
Dim MyClass As New MyClass
I then call the function that returns a datatable and apply it to datatable1 and 2 Then fill two DataGrids with the table:
I created a DataSet using the DataSources wizard. I can display the rows of each Datatable one at a time. But in this case, I needed to add a new DataTable (newDT) using the Add New Table Adapter control(?) on the toolbox. newTable is derived by JOINing three different existing tables (or, dataTable) in my DataSet designer. The query works fine and returns all the data as expected. Trouble, if I try to display the rows of the newDT on textboxes, I get a NULLREFERENCE Exception.
I'm getting the error on the following line of code: dr(y) = ds.Tables("Original").Rows(y).Item(i)I got the piece of code from the following website: [URL]..I think it's because there is no row at position 17... I wonder why... but I'm not sure how to include a piece of code where it checks to see if the row or column exists. How do I check to see if the row/column exists? It's probably really simple, brain isn't working properly at the moment unfortunately.
There are only about 30 different "Type_And_Model"-types.How can I insert into a new DataTable (dt2) only distinct "Type_And_ Model" types with the sum of their specific values and total appearance number?
i have two bezier curves placed at a distance apart in space.curve 1 has control points A0, A1,A2, A3. A0 and A3 lie on curve and are its end points Curve 2 has control points C0,C1, C2, C3 . C0 and C3 lie on curve.and are its end points
i want to join the two curves A and C with an intermediate bezier curve B. the intermediate Curve B has control points A3 and C0 which lie on the curve and are its end points. the intermediate control points B1 and B2 are unknown to me. also the joining should be smooth enough. please help as to how to proceed. have read alot about beziers but dont know how to do this.
I have a list of object with 3 properties (quantity, service, name)I want to have all names and services in my list (kinda cross join) and the grouped quantity of the row corresponding. Not clear i guess
Quantity Service Name 3 Srv2 Bob 4 Srv2 Paul 2 Srv1 Paul 1 Srv2 Nick
I want as output All the services and all the names and corresponding quantities (0 if none)
Srv1 Paul 2 Srv1 Bob 0 Srv1 Nick 0
[code]....
Here is what I got so far, but I dont even get the expected resultsAnd I am acutally certain there is a pretty easy way of achieving what i want...
Dim services = (From a In interventions Select New With {.Service = a.Service}).Distinct() Dim months = (From b In interventions Select New With {.Month = b.DateHeureIntervention.Month}).Distinct() 'Dim query = (From s In services _
I am trying to Join the domain using VB.NET 2005. I cannot see anything I am missing but am getting an error code that hasn't proven much use. I get a return error code of 1332.[code]
All I really want to do is a join. Table 1 and Table 2 both have a number that would link the two together. I want to join two fields from Table 2 onto Table 1. I need to have two datasets because there are two different connections being made.I want to push this onto a DataGridView, which only allows a single datasource. So I'm thinking I would need to make a temp table somehow, but since I'm pulling from two different datasets I don't know if that's possible.
i have two bezier curves placed at a distance apart in space.curve 1 has control points A0, A1,A2, A3. A0 and A3 lie on curve and are its end pointsCurve 2 has control points C0,C1, C2, C3 . C0 and C3 lie on curve.and are its end pointsi want to join the two curves A and C with an intermediate bezier curve B. the intermediate Curve B has control points A3 and C0 which lie on the curve and are its end points.
I am not sure if the above title is suitable for what I mean, but basically my application has a login table with entry U_ID and I have also created another field in my other table which will store this ID from the login table.
What I want to do is, if a user with say U_ID = 1 downloads data and stores it in the second table I would also for trackable reasons be able to store the U_ID of that user in the second table so that I would know who downloaded the information.
How can I acheive this and if there are any example then point to them.
Can you perform a join on two tables, one is an Access database and the other is a SQL Server database.I understand that I could perform a SELECT on each database, and then manually join the results. Is this how I'm going to have to do it?
I am having a data set in vb.net with two tables one table is filled by using oracle databse and another one from Sql 2005. How can we join these two tables in the dataset?
i have a program where im trying to split a string from 1 text box and output the values in to 2 different text boxes .
my string username: password which reside in txt1.text
i want to split the string at ":" and have username appear in txt2.text and password appear in txt3.text i have this code but doesn't work for what i want to do.
Quote:
Dim text Array() As String = txt1.text.Split(":"c) 'ALPHA SORT THE ARRAY Array.Sort(text Array)
[code]....
Also trying to find a way to rejoin the text back to the original string afterward in the username: password format
In my application, I have a search query textbox (txtSearch) that works well with one-word queries with the following LINQ:[code]So how would I make the above query more generic (ie: able to handle any number of words in a query)?I should note that the object being queried is a List of strings pulled from an Access database. As it stands, this application only queries the database once and I'd like to keep it that way if possible.
I was just wondering weather it was possible to make it so that if I press the first a item on listbox1 then the first item on listbox 2 is selected aswell. For example I would like to have 2 listboxes lst1 and lst2 and I would like it so that when I select the first item on lst 1 then the first item on lst2 is automatically selected and when I select the 3rd item on lst1 then the 3rd item on lst2 is also selected.
I want the strings of RichTextBox1 and RichTextBox2 (strings are separated by newlines) printed to RichTextBox3 along with selected RadioButton's name and ticked CheckBox's name.[code]
I have a little issue. I need to be able to concatonate the Row1 with Row2 to another/row/table, and the start again on the 3rd row, Join Row3 on Row4 .. and so forth. The issue i have is that there is no relationship between Row1 and Row2. The only common thing is that Row2 is part of Row1. Can this be done? (Can be done with either by SQL SERVER, SSIS or ASP.NET VB) Below is a sample output of the data in column1 (single column)
I am trying to update a datagrid joining two tables with a bindingsource. I keep getting the following error: "dynamic sql generation is not supported against multiple base tables." Any ideas on how to fix the problem? Also, I realize that commandbuilder does not work for more than one table.
im using this code for create view joining tow table but its gived me error on 'INNER JOIN' :
Cmd.CommandText = "CREATE VIEW MyQry As SELECT TblData.Emp_ID,TblData.Emp_Name,TblData.Emp_Bonus,TblData.Emp_Salary,TblData.Emp_Sanction FROM TblData WHERE TblData.Emp_ID LIKE '" & LstEmp.Text & "' INNER JOIN
Basically what I'm having to do is create a program that takes a list of CaseIDs and compares them to a table on a remote SQL server. However, the table holding the CaseIDs on the remote server has nearly 120,000 records.
Currently my plan is to query all records on the remote server, save the query and the current list to tables in an Access DB file and then run an outer join to see which CaseIDs have no matching records on the remote server.
I believe this will be a much slower process than I would like. If I could load both queries into arrays or lists in VB and then compare them (therefore, not having to write 120,000 records to a DB file), it would be much faster.
I have been trying to figure out how an application like GameSpy or GameRanger launches applications and is able to sync with other users(all joining together). I have been under the assumption that it was just simple command line switches being used. The more I look into it the more I don't think that is the case. I believe they are hooking into a game's API to do so. My question would be, using OllyDbg I was able to get the memory address of a Text display in the game(The game you are about to create's name).The default is "TEST SESH", and if you highlight the field and hit enter you can edit it. I was wondering if anyone could give me incite on how I could set this text through a DLL injection?
I have a query that can be summarised in SQL as follows;
Select S.StockCode From StockToCheck As S
[Code]....
Where the S var is a list of strings. This gives the error 'S' is not declared and points to the S in the function call / join (GetPOSStock). So it does not seem possible to do this in Linq, can anyone confirm?