Sql - Calling A Programmatic Inner Join In VB ResultSets?

Mar 20, 2012

We have an item cull that retrieves items and their appropriate data from one server. Their Primary Keys need to be INNER JOINed with another table. However, the second table is on another server. We can retrieve that data using a separate select statement and accompanying VB objects.

How would one go about this programmatically in VB? Is a loop the best practice available? Although we are in a Microsoft Ecosystem, Server Linking is not possible.

View 1 Replies


ADVERTISEMENT

Store 2 Or More Resultsets In A Datareader?

Oct 5, 2009

Is it possible to store 2 or more resultsets in a Datareader? I have different methods which each return a DataReader. Can I store resultsets of them in the same DataReader?

View 1 Replies

Waiting For Threads - Thread.join Suspend Execution Of Code On Calling Thread Until Spawned Thread Finishes Or Is Aborted

Sep 2, 2010

My understanding is that thread.join will suspend the execution of code on the calling thread until the spawned thread finishes or is aborted...

With that in mind, I tried this:

For i = 1 to 50
threads = New Thread(AddressOf test)
threads.IsBackground = True
threads.SetApartmentState(ApartmentState.STA)

[CODE]...

However, the rest of the code runs when the loop finishes, not waiting for all the spawned threads to finish. Since the rest of the code needs the threads to finish (otherwise the rest will error).

View 4 Replies

Perform Grouping Of Resultsets In Code, Not On Database Level?

Apr 12, 2010

Stackoverflowers,I have a resultset from a SQL query in the form of:

Category Column2 Column3
A 2 3.50
A 3 2

[code].....

View 4 Replies

Inner Join - Join Two Tables,'Employee' And 'Dispatch'

May 17, 2012

Iwant to join two tables,'Employee' and 'Dispatch'. Dispatch has column 'DispatcherID' and 'TechnicianID' which are both foregn keys to EmployeeID in Employee table.I want to join these two tables using EmployeeID so that i can obtain the matching name to each id.but it only works when i make a single join to either DispatcherID or TechnicianID and not for both.

[code]

select Employee.firstname+' '+Employee,secondname as Technician,Employee.firstname+' '+Employee.secondname as Dispatcher from Dispatch inner join Employee on Dispatch.TechnicianID=Employee.EmployeeID inner join Employee on

[CODE]...

View 12 Replies

Create Charts Programmatic With Net?

Sep 10, 2009

I'm trying to get my head around excel charts. I've poured over these posts for the last couple of days now and i'm coming up dry. I've got a xl file thats got some data in the first 2 columns. I want to put the data in an XY scatter plot. Column A is the x coordinates and b is the Y.[code]...

View 6 Replies

INotifyPropertyChanged And Programmatic Changes To GUI Controls?

Jun 17, 2009

Okay say we have a class that implements INotifyPropertyChanged and a property that has code in the setter to raise the PropertyChanged event. On the GUI side we have a text box with the code:

txtFirst.DataBindings.Add("Text", p, "FirstName", True) Where p is a Person object and FirstName is the property that raises the PropertyChanged event.

[code].....

View 2 Replies

Programmatic Select Of DataGridViewRow?

Nov 4, 2009

I have been looping thru all of the rows in a DGV and matching a variable to a specific cell in the row to 'do stuff to that DGVRow.

For Each dgRow As DataGridViewRow In Me.dgvInsertCommercial.Rows
If dgRow.Cells("SomeColumn").Value = pid Then
'do stuff
end if

Is there a way to actually query or make a selection instead of having to loop thru all of the dgvRows?jfc

View 4 Replies

C# - Programmatic Way To Temporarily Block Specific Web Sites?

Jun 19, 2009

I need a way to programaticaly block and then later unblock specific websites based on their domain names. I only need to block browsers (so http & https would be sufficient, I guess?) but not just Internet Explorer, it should also work for anyone trying to run Chrome or Firefox too.

View 4 Replies

VS 2010 : Programmatic Edit Of Datagridview Not Updating The Database?

Jul 4, 2011

I am programmatically updating some columns in a datagridview. When the user has also updated some columns then my program generated changes are also saved to the database (MSAccess). If the user does not update a dgv column, my program edits are not saved. I have read in another posting somewhere that I should be updating the bindingsource rather than the dgv cells. I have some code that was attempting to do this but it doesn�t work.

Dim dvr As Data.DataRowView
With TblClassMembersDataGridView
.EndEdit()
.CommitEdit(DataGridViewDataErrorContexts.Commit)

[code]....

PS. Is the bindingsource in a on-to-one relationship with the table returned by the Fill method? If not, I can see one obvious error.

View 1 Replies

Programmatic Update Of Datagridview Cells Not Being Updated Back To Database?

Aug 25, 2010

I can edit the values in the dgv cells manually, add rows, delete rows all without problem and then update the database.My problem is in one form where I want to allow the user to filter the rows in the grid and then enter a value in a textbox and programmatically update all the cells in one column with that valueI can update the rows, and see the changes in the datagridview. When I try and update the database (using UpdateQuery on the underlying TableAdapter of the datagird) only some of thechanged rows are being updated I though it might be related

View 9 Replies

Programmatic File Copying Error "Access To The Path '\serverfilepathsdatabase.mdb' Is Denied"

Jan 6, 2010

I am using .net 3.5 and vb.net 2008 I have a program that copies access databases (.mdb) over from one server to another to be used ofr a ArcGIS webservice. The databases are edited on one server then nightly copied over to the webserver so they can be consumed in an intranet page).

The program is just a windows form that runs copy command in the load procedure. The program itself is run form the scheduler as an admin user for the machine but no one is actually logged in when it runs at 1 at night. I then get this kind of error reported to me:

[Code]...

View 5 Replies

How Does DotNet Handle Parametrized Dates Where Programmatic Date Has No Time But Sql Date Has Time

Jul 16, 2010

Thought I'd see if Stack overflow is quicker than me testing something while I get a thousand interruptions from other work :)

I'm updating an old VB net application and trying to refactor some of the logic as I go. The app looks for data from a single date across a few tables and writes that view to a file.

Writing the query in SQL I'd get the equivalent of

SELECT * FROM table
WHERE CAST(FLOOR(CAST(table.date AS float))AS datetime) = '15-Jul-2010'

Ideally I'd use

SELECT * FROM table WHERE date=@input

and add a date object as a parameter to a System.Data.SqlClient.SqlCommand instance

Are those two comparable? Will I get the results I expect?

View 1 Replies

.net - Performing An Inner Join?

May 20, 2009

I've trying to do an inner join select statement where I select two fields from a table, and than all the records of a field in a second table that have the same id as the first table.The code looks as follow:

Dim conn As OleDbConnection
Dim cmd As OleDbCommand
Public Sub openDB()

[code]....

I get a an exception: "invalid bracketing of name [Vegetables Descriptions.DescID] if I take it out to make it look as follow I get a "Join expression not supported"

da = New OleDbDataAdapter("SELECT [Vegetables Descriptions.Task], [Vegetables Descriptions.Description], [TasksOcc.When] FROM [Vegetables Descriptions] INNER JOIN [TasksOcc] ON [DescID] = [DescID] WHERE [Vegetables Descriptions.VegeID] = vegeID", conn)

I tried folowing examples from the net but where unsuccessful.

View 3 Replies

Asp.net - Inner Join Using Linq .net?

Apr 15, 2011

I'm trying to join two datatables of same keyfields.

table1
ID Class
---- -----
1 10
2 9

[code]....

Result

ID Class1 Class2
1 10 8
2 9 7

View 2 Replies

CopyToDataTable From Join?

Jul 23, 2011

After beating my head up against a brick wall for weeks I finally discovered that VB 2008 will not allow CopyToDataTable from a LINQ Query that uses a join.Can anyone provide me with alternative that will let me get a datatable from a join query?

View 4 Replies

How To Join Tables

Sep 1, 2010

I've been using Java for a number of years, and now I'm at the beginning again with VB.NET.How would I go about joining two tables?- order doesn't matter, as long as i can print/display the order
Here's an example of what I'd like to do:

table 1
data 1 , data 2 , date time
12 , 23 , 2010/8/20 10:00:00

[code].....

View 4 Replies

How To Join Two Datasets Together

Aug 2, 2011

how to join two datasets together.

First Dataset
Dim sql As String
sql = "SELECT payment.Debtor, SUM(Value_invoice) AS before_this_month,debtor.nama FROM Payment INNER JOIN dbo.debtor ON Payment.Debtor = debtor.debtor" & _

[code]....

Now i just want to either inner join or left join PaymentBeforeThisMonth and PaymentThisMonth into another dataset?

View 4 Replies

How To Save Using Inner Join

Jun 22, 2010

i am developing a software for tecnichal assistance. i am using a acces database which consists in two tables assitance and cliente and i use inner join to connect t«the two tables. now i connot save data on the table i made the inner join. What code i have to use to save on the table?

View 1 Replies

Inner Join In Acces

Mar 16, 2009

how we use inner join in oledb( acces ) ? this is false :

cmd = New OleDbCommand("select lesson_name as ,lesson_type from choice inner join present on choice.p_code=present.p_code inner join lesson on lesson.lesson_code=present.lesson_code
and this:

[Code].....

View 3 Replies

Inner Join On A Datatable

May 22, 2010

I created a datatable from ado.net, myDatatable. Is it possible to make inner join on myDatatable from a select statement, like below?

select * from order o inner join on o.productID = myDatatable.productID

View 2 Replies

Join Two Datatables Into One?

May 28, 2012

I have two datatables which I intends to bind them to Gridview. But I need bit of the first dt and bit from second dt.

Second table has only one row that represents to every row in the same column in first table.

There is no primary key or relationship between two tables though.

For example,

I tried datatable.merge though. Didn't produce the last table i want.

View 2 Replies

Multiple SQL Inner Join?

Jan 21, 2009

when I use multiple inner joins I get replicated values but there is only one record,

"Select table1.Field1, table1.field2 as QNR" & _
", table2.field1, table2.field2, table3.field1, table3.field2" & _
" from table1 Inner table2 on table1.field1" & _
" = table2.field1 Inner Join table3 on table2.field1" & _
" = table3.field1"

QNR should only show one value, but is shows the one value three times?I bind it to a list box using the following:

lstQuotationNr.BindingContext = Me.BindingContext
lstQuotationNr.DisplayMember = "QNR"
lstQuotationNr.DataSource = Dataset

View 1 Replies

SQL Join On Two Tables?

May 19, 2010

I'm trying to do a join on two tables but i'm having a hard time. Here's the table schemes:

table1 : tbl_Trainees_IntentToParticipate
Scheme:
TraineeID (PK)
FName
LName

I want to select all TraineeID/FName/LNames from table1 where TakenTest (from table2)= false

heres the sql statement I have so far:

SqlJoinStatement = "SELECT tbl_Trainees_IntentToParticipate.FName, tbl_Trainees_IntentToParticipate.LName" _
& "FROM(tbl_Trainees_IntentToParticipate, tbl_Trainees_TabScores) " _

[code]....

View 2 Replies

.net - Ms-Access: Join 3 Tables?

May 23, 2009

how to join 3 tables, I have the following statement but I'm getting a missing a (syntax error "operator error")

da = New OleDbDataAdapter("SELECT [S].[Scheduled Vege], [V].[Description],
[DS].[Task], [DS].[Task Date], [DS].[Completed] FROM [Scheduled] AS S
INNER JOIN [Date Schedules] AS DS ON [S].[SchedID] = [DS].[SchedID]

[code]....

View 3 Replies

Add A Row To DataTable That Is Product Of SQL JOIN's?

Nov 30, 2011

I have a strongly typed DataTable in my app which is generated with a couple of SQL joins. I use it to display data in a human readable way.[code]....

View 1 Replies

Asp.net LINQ Join Query

Sep 28, 2011

I have this query that I tried to join 2 tables together, one which holds the product name, and product numbers, and take a product number, and go to the other where to find a Art_no which is like the product number.[code]

View 2 Replies

DB/Reporting :: Join Two Tables IN SQL?

Jun 16, 2010

I am working on a Visual Basic 2008 program using an Access 2000 database. My SQL codereturns no records, but I know the table has a record. A simplified example of the code looks like this:

SELECT Table1.Field1, Table1.Field2, Table1.Field3, Table1.Field4, Table2. Field1, Table2.Field2 FROM Table1 INNER JOIN Table2 ON Table1.Field1 = Table2.Field1 AND Table1.Field2 = Table2.Field2 WHERE Table1.Field1=@Field1 AND Table1.Field2=@Field2;

[code].....

View 2 Replies

Entity Framework VB Join

Feb 28, 2012

I'm trying to learn EF in visual basic. I'm struggling with finding any easy to understand simple tutorial of how to do inner joins.

This is the SQL that i'm trying to replicate in EF:

SELECT Quote.LockedDateTime, IncommingQuoteStatus.StatusDesc, Users.FirstName
+ ' ' + Users.LastName AS UserName
FROM Quote

[Code].....

View 1 Replies

Error With SQL Query For Max From Inner Join

Jun 6, 2011

I dont have a huge wealth of experince with SQL statements and im struggling;

[code]...

I would like to list all of the job titles(for which there could be multiples as different employees can have the same job title) in the employee table and find the maximum amount of hours for that job title as the hours could be different for different empoyees.

[code]...

View 1 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved