DataSource Controls :: Why We Need Union Query
Jun 10, 2010if there is no relation bettwenn two tables why do i need union for example like below Please
can u inform me
SELECT categoryId
FROM categories
UNION
SELECT shipperId
FROM shippers
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DataSource Controls :: Join Query Or Union?
Jun 30, 2010i have two queries they are:
query1:
select CustID,NoOfChits from tblCust1 where [Group]='A' and CustID='a001'
query2:
select count(TKCustID) as Taken from tblAuctionGroup where [Group]='A' and TKCustID='a001'
Results of 1st query was:
----------
CustID NoOfChits
a001 2
Results of 2nd query was:
----------
Taken
4
But i want to like below:
--------------------------
CustID NoOfChits Taken
a001 2 4
in the above queries, 1st query displayed two columns and 2nd query displayed one column. but i would like to append the both results in single table or single record, i mean all results should be in same row in same result.
DataSource Controls :: Make Union Query Better?
Apr 11, 2010in my application i should make an union query thay union 15 tables
and this query begin with 150000 rows and will grow .
i need get just 10 rows from this query
i want make this query as best as possible
2 qustion
-----------------------------------------------------------1------------------------------------------
********View1*******
select id, lang, active from table1
union
select id,lang,active from table2
...--same way to all other 15 tables
*******SP***********
select top 10 from View1 where active=1 and lang='he' order by id desc
or
********View1*******
select id, lang, active from table1 where active=1 and lang='he'
union
select id,lang,active from table2 where active=1 and lang='he'
...--same way to all other 15 tables
*******SP***********
select top 10 from View1 order by id desc
---------------------------------------------2---------------------------------------
becauseof that this query is very complicate i want to know if i need take just 10 from each table
------------------------------------------------3--------------------------------------
if there is an idea how make this query better, i will glad to know.
DataSource Controls :: Not Getting The Expect Result Set From Query / Join Or Union?
Jan 27, 2010i have a form that my i use to look up whether or not there is an email address in the database. i wrote a query with this basic structure:
select *
from table A, table B
where table A.email = "email" or table b = "email"
i though that would return all instances that the email occurred in either table. what i am getting back is a bunch of null or other unrelated records from table A with a matching email in table B. the thing is, these two tables primary key to join them. i thought i wouldnt need to do that though in this case.
here is the actually query i am using if it makes things more clear:
select lm.cemailaddr, lm.b1emailadd, b.emailaddr
DataSource Controls :: How To Sort The Records When Using Union
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[Code]....
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May 1, 2010SQL Select Union and total number of returned rows?
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Aug 4, 2010I am a .net developer.I am not that strong in SQL.I need a simple query.This is from Northwind Database.
select 'Select All' as CustomerID,'Select All' as City union(select CustomerID, City from Customers
order by City)
i need to get output like 1st row should be Select ALl Select All and next rows should be output of this stat..(select CustomerID, City from Customers order by City)
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Forms Data Controls :: Create A Lookup Data Source Based On A Union Query With The Actual Data And A Blank Record?
Jun 1, 2010I'm new to ASP.net 3.5 and trying to create a test site so I can figure out how to use it in the real world. I have created a FormView (Formview1) based on a Client table using Linq Data Sources. The page includes a DropDownList to lookup Clients. I have added a list option (<asp:ListOption value="" Text="(Select Client)" and set AppendDataBoundItems=true so my added option is displayed. I decided to try to use Formview with only the Edit and Insert Modes, and I have set the Default Mode = Insert. When you open the page, a blank Client record is displayed.
The Client record contains serveral lookup fields and they have drop down lists for each. When I select a client from the Client DropDownList, is get the following message 'ddlClientType' has a SelectedValue which is invalid because it does not exist in the list of items I had this problem before and decided the best way to handle this (in the interim) was to turn off foreign key constraints for each of the lookup fields (e.g. ClientType) in SQL Server. That worked for 2-3 days. Now the problem has started again.
When I develop in other applications, I would simply create a lookup data source based on a Union Query with the actual data and a blank record. How can you do this using Linq DataSources. Can you get access and modify the queries?
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Aug 22, 20101. I have a GridView on my page and it uses sqldatasource with parameterized query. What I want to do is, on page load (where nothing has been selected so no parameter supplied), I want it to query everything (something like SELECT * FROM [this_table]) but since my SelectCommand is something like
SELECT * FROM [this_table] WHERE [this_column] = @someParameters AND [that_column] = @someParameters.
Can I play around with default value to achieve something like that but how ? Now, when the page loads, it doesn't show anything (No Gridview).
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DataSource Controls :: Update Query Not Working When Using Query Builder To Configure Table Adapter
Jan 15, 2010[code]...
This query works perfectly on the query analyser.
But when configuring the Table adapter ,I try executing the query and i get 0 rows affected.
What could I be getting wrong in this case.
NB:Existing GalleryID has been supplied.
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Jan 21, 2010I've got a query such as
Dim MediaQuery =
From m
In dB.DOWNLOADS _Where m.ID = id _Select
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This is the sample link with the Querystring ddl4 carrying a blank value:
[code]....
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[Code]....
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<asp:GridView
ID="GridView1"
runat="server"
[code]...
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Feb 21, 2010Hregarding to following query:
Use AdventureWorks
Go
ELECT p.ProductID,
piy.ProductID
What does mean ON 1 = 1 in this query??
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Jan 4, 2010I have 2 tables table1 and table2 as given below.
Table1 - user master table. table2 - transaction table. Now I want to write a single query which will give results like table 3. how to write single query.
TABLE 1
TABLE 2
TABLE 3
USER ID
[Code]....
DataSource Controls :: SQL Query Formation?
Jun 11, 2010I have several dropdowns in ASP.net, I want the contents in each dropdown depending on what is selected from the above dropdown and the datasource queries reflect this. I have the queries correct for the first two dropdowns, but I cannot get the third displaying data.
The first dropdown just contains all dept names
The second dropdown contains the manager names in that chosen dept above
The third is meant to contain the list employees relating to the chosen manager name above
<asp:Label ID="Label1" runat="server" Text="Cost Centre:" Font-Bold="True"></asp:Label>
<br />
<asp:DropDownList ID="DropDownList_CostCentres" runat="server" Height="21px"[code]....