Select Distinct s.* from #ScopeIDs x Join Scopes s on s.ScopeID=x.ScopeID or x.ScopeID is null
in LINQ to SQL? (This query would return all Scopes whose ScopeID is present in #ScopeIDs, unless one of the entries in #ScopeIDs is null, in which case it returns all Scopes).
A "literal" translation doesn't work, since LINQ doesn't support joining with multiple conditions - code along these lines ...
From x in ScopeIDs Join s in Scopes on s.ScopeID equals x.ScopeID or x.ScopeID equals nothing Distinct Select s ... doesn't compile.
From event_evn In xmlEvents.Descendants("event_evn") _ Join genre_gnr In xmlGenre.Descendants("genre_gnr") On event_evn.Element("evn_gnr_id") Equals genre_gnr.Element("gnr_id").Value _ Group Join eventdata_eda In xmlEventData.Descendants("eventdata_eda") On _ eventdata_eda.Element("eda_evn_id").Value Equals event_evn.Element("evn_id").Value And _ eventdata_eda.Element("eda_dty_id").Value Equals "15" _
I have two tables 1) tblRequests and 2.) tblMainTags. The Fields in tblRequests are Tag_Request_No, Employee_ID , Accepted, Accepted_Date, and Accepted_Time. The Fields in tblMaintags are Tag_Request_No, Tag_ID, Completed, ... The fields 'Accepted' and 'Completed' are set to YES/NO.
I have been searching for quite a while about joining multiple datatables via LINQ to dataset (When i say multiple, i don't mean just 2!!!), and it seems there aren't lot of examples in the net. I have seen examples of joining two datatables, done that, no problem there. Now i want to join three datatables. And there's nothing i can find out there.For example i have a 3 datatables:
I have a problem i need to join two table from different sql servers and as a test i have tried to get data from two table but i realizethe adapter can have only one connection statement as argument how do i get records from two table from diffrent database
Please see my code Dim adapter As SqlDataAdapter Dim ds As New DataSet
so I have a game in VB 2008 and 21 options for a something in the game and all 21 options have the same code but the number is different. for example: timerX.enabled = true where X is the number from 1 to 21. Is it possible to link them all to one Sub instead of 21?
How to Query multiple tables in a dataset to form single consolidated table without using any external database. I know this can be done using 'JOIN' in SQl.
Now my condition is I have multiple tables filled with data in a dataset and each table is interrelated with a common 'column'. For example ,
Table 1 ID Name 1
[Code].....
Here I mentioned only two tables but in my case there are many tables. I need a generic answer for this dynamic query .
I've found alot of examples for add/edit/delete a single table. In VB6 ADO you could load multiple tables into a recordset using the join command. Then manipulate or modify the data.
I've found how to retreive multiple tables like,
Da = New OleDb.OleDbDataAdapter("Select groups.groupid,groups.userid,lots.groupid,lots.lotid from groups inner join lots on groups.groupid=lots.groupid order by groups.groupid asc", DB) But the only way I have found to update is to use seperate Update commands for each table.
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
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.
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?
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
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?
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?
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:
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]
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]
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;
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.
is there a simple way to join together string arrays. like say i have a string array "a", "b", "c" and i would like to get the string "a:b:c".currently the method im using is to loop through the array each time and manually join them to the string?
I'm working on a project in vb.net 2010 that has 3 RichTextBoxes. Two of the RichTextBoxes can be loaded with text from text files. How do I take the multiple lines of text from each RichTextBox and combine them into the 3rd RichTextBox.
For example, if 2 of the RichTextBoxes contain the following lines of text: (RichTextBox1) Monday Tuesday Wednesday
(RichTextBox2) Jan Feb Mar
I want the 3rd RichTextBox to show following result: (RichTextBox3) MondayJan TuesdayFeb WednesdayMar
Given two tables, customer and orders, how would one do a linq query to entities to find any customers with open invoices started before a certain date?
