IDE :: Aggregate Query With Condition ?
May 28, 2012i have 1 query with aggregate with condition using access
SELECT
HD.No,
SUM(IIf(DT.Status = 'A', 1, 0)) AS One,[code]...
i can run it in access but not in .Net QueryBuilder
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Run Aggregate Query Against A Datatable?
Mar 9, 2010I do have a datatable filled from a flatfile (say .txt). After the datatable is populated, I manipulate the data. After datamanipulation I want to do some analysis of the content of the datatable. For this analysis, I need to aggregate the data.
To keep it simple, let's say I have single orders of customers in the datatable and now I want to get the total order amount for each customer (SQL: SELECT Customer, Count(Ordervalue) FROM Ordertable GROUP BY Customer).
Converting A Traditional SQL Aggregate Query Into A LINQ One - SUM Grouping ?
May 24, 2010I'm having trouble getting my head around converting a traditional SQL aggregate query into a LINQ one. The basic data dump works like so:
Dim result =
(From i As Models.InvoiceDetail In Data.InvoiceDetails.GetAll
Join ih As Models.InvoiceHeader In Data.InvoiceHeaders.GetAll On i.InvoiceHeaderID Equals ih.ID
[CODE].....................
What I need to really be getting out is ih.Period (a value from 1 to 12) and a corresponding aggregate value for i.ExtendedValue. When I try to Group ih I get errors about i being out of scope/context.
C# :: Aggregate Or Join Strings In Linq To Sql Query (SQL Server)?
Aug 6, 2010Given a table like
ID | Name | City
1 | X | Y
2 | Z | Y
[code].....
MS CRM 2011 + FetchXML - Aggregate Query Limit Exceeded?
Apr 12, 2012I've got a 2 part question: First question: I know that there is a query limit of 5,000 records when querying records, for performance reasons, but is there a limit when doing an aggregate query? If so, what is it? I need only to query the number of records and for one entity I can get a result of 39,000+ records, but for another entity I see an error message like:
[Code]...
Error : "You Have Tried To Execute A Query That Does Not Include The Spec Ified Expression 'ID' As A Part Of The Aggregate Function
Jul 1, 2009I am working on an application in Visual Basic Express using an Access 2000 database.I am trying to get athe following SQL query to work but get an error in Access.
The query is:
SELECT [ID], [Title], [Author], [Series], [YearPublished], [ISBN], [CoverPrice], [Style], [Condition], [Signed], [Comments], Count([Title]) AS CountOfBooks, Sum([CoverPrice]) AS TotalCoverPrice
FROM tblBooks
WHERE ID=[@ID];
The error is:"You have tried to execute a query that does not include the spec ified expression 'ID' as a part of the aggragate function."
The query works fine without the 'Count' and 'CoverPrice' count and sum to the query.
Iif Condition In Linq Query Where Clause
Aug 25, 2011Whats wrong with the below query, I am getting this error: Nullable object must have a value.
[Code]...
Linq Query Dynamically Add Where Condition?
Sep 3, 2010I want to filter records dynamically on user choice. The user may choose to show the debit amount greater than credit or credit amount greater than debit. Accordingly I want to put a condition similar to either totDebit>totCredit orTotCredit>totDebit`
Dim query = _
From product In Bills.AsEnumerable() _
Group product By accode = product.Field(Of String)("ACCODE"), _
[Code]....
Sql Query WHERE(condition) - Date Format
Sep 8, 2009QuoteI am facing the problem in select the item dates. This is because i only want the condition of month from table dates. So i think the data set i write it get the error.
[Code]...
How To Declare Anonymous Types - Different Query Based On A Condition
Jun 29, 2009How to declare Anonymous types. I want to do a different query based on a condition.
Something like this:
If true then
Dim Myquery = From data In MyXML.Root.<hist> _
Select New With { _
.SensorID = CType(data.<sensor>(0), Integer)}
else
[CODE]...
Then I want to reference MyQuery outside of the condition. But how do I declare MyQuery outside of the if statement?
Sql Query How To Put 2 "where"condition
Jan 19, 2012first this is the table relationship. below is what i'm trying to achieve
Dim ad As New SqlDataAdapter("SELECT inventory.ItemName,record_item.Amount FROM record_item,inventory WHERE (record_item.RecordID = '" & listbox1.SelectedItem & "')", conn)
if i'm trying to get ItemName based on the RecordID that i have,do i need to put 2 condition? if i do, how?
WHERE (record_item.RecordID = '" & listbox1.SelectedItem & "') and WHERE(record_item.ItemID=inventory.ItemID)
How To Express'Aggregate Into' In C#
Jul 25, 2011I have a code in VB .NET:Aggregate item In items Into Sum(item.Value)
View 3 Replies.net - Aggregate Multiple IEnumerables Of T
Jun 30, 2009Given....
Public MasterList as IEnumerable(Of MasterItem)
Public Class MasterItem(Of T)
Public SubItems as IEnumerable(Of T)
End Class
I would like a single IEnumerable(Of T) which will iterate through all SubItems of all MasterItems in MasterList
I would like to think that there is a Linq facility to do this, or an extension method I am overlooking. I need a mechanism that works in VB9 (2008) and hence does not use Yield.
How To Aggregate Field's Numeric Value
Nov 1, 2011How to Aggregate field's numeric value..? in visual basic 2010.i am created a form with a datagridview and a textbox .datagridview binding with a table. in visual basic 2010 and SQL Server 2008R2
table fields and datagridview columns are like below
[Code]...
How To Use Aggregate Function In LINQ
Nov 1, 2011I want to get the average of this query.
From d In (From c In location.Descendants("temperature")
Where c.Attribute("type").Value = "hourly" Select c).Descendants("value")
Take 3
Select d
I can see the aggregate keyword in the autocomplete dropdown, but how to apply it.
Run Aggregate Function In Expression?
May 9, 20101.print the cars which are fast moving cars.
i have written this code but it shows message Cannot have aggregate function in expression[code]...
Group By And Aggregate On A Calculated Column
Feb 20, 2011how to change this Linq to Entities (VB.Net) query to Group by L2_ID column and aggregate the calculated column diff as Sum for the group.
[Code]...
LINQ - Logical Difference Between Max And Aggregate?
Apr 6, 2011I've seen the operator Max used two different ways. The following two queries produce the same results. The MSIL code is slightly different. What is the benefit of using the Aggregate operator? Logically, is there a difference?
[Code]...
LINQ Expression Starting With From And Aggregate
May 4, 2012[code]The LINQ query going into "result" is incomplete because I'm stumped at what is happening there. I expect FirstOrDefault to refer to refer to a single Child object at that point in the expression, but it refers to a collection of child objects. Why? What is the best way to get a list of parents that have no associated child or have a child fitting a particular condition? (My actual code will have one child max, so this sample code is not representative.)I just don't understand what the collection of FirstOrDefault could be referring to. It should really be just 1 value or nothing at all times.
View 1 RepliesVS 2010 Aggregate A Datagridview Column?
Jul 2, 2009I am trying to aggregate a column in a datagridview. I know how to get it to work if I bind a database to it, I have several of them working perfectly, but I have one datagrid that is not bound to a database and for the life of me can not fiqure out
View 4 RepliesInterface Be Implemented Across An Aggregate/composite Class In .net?
Mar 30, 2010VB.NET .NET 3.5 I have an aggregate class called Package as part of a shipping system. Package contains another class, BoxType . BoxType contains information about the box used to ship the package, such as length, width, etc. of the Box.
Package has a method called GetShippingRates. This method calls a separate helper class, ShipRater, and passes the Package itself as an argument. ShipRater examines the Package as well as the BoxType, and returns a list of possible shipping rates/methods.
What I would like to do is construct an Interface, IRateable, that would be supplied to the helper class ShipRater. So instead of:
[Code]...
However, ShipRater requires information from both the Package and its aggregate, BoxType. If I write an interface IRateable, then how can I use the BoxType properties to implement part of the Interface?
Linq To Sql, Aggregate Columns ,group By Date Into Listview?
Aug 3, 2011also i have a table called Orders with several columns, they contain information about the order and store the ID of the Customer they belong to.Question is: how can i query that table with (preferably) linq (the datacontext is from LinqToSql) to return the following dataI want to search for any entry with the matching CustomerID which took place, group them by Year, Sum the Totals respectively and add them to the listview?I now i could use lamda expressions and aggregate, its just not clear how (option infer on,db is a datacontext object,CustomerID is an int32 variable):
Dim Orders = (From order In db.Orders Where order.CustomerID = CustomerID).GroupBy(Function(p) p.Date.Year).GetEnumerator
I reckon i'd have to create an anonymous type like the following:
[code].....
Linq-to-Entities Aggregate A Column That Is Calculated In An External Function?
Feb 21, 2011I want to Sum of the calculated column Red which is calculated in the Function IsRed() that return an integer.When I run the query I get the following error: Method 'Int32 IsRed(Int32)' has no supported translation to SQL.How should I rewrite this to get it to work.
[Code]...
Sql - When Run The Query In Query Analyzer, It Returns One Row But When Use The Same Query, No Rows Are Returned?
Aug 19, 2010Here is the code:
Function getData(ByVal id As String)
Dim reader As SqlClient.SqlDataReader
Dim statement As String
[code].....
.net - Aggregate The Columns To Group On The Period And Sum The Count Columns?
Jun 29, 2011I have the below Linq query that is returning the data but I need to aggregate the columns to group on the Period and Sum the Count columns. How do I go about doing this?
LINQ
from t In tblTimes
join h In tblEngineeringDashboard_CADMachinesCounts on t.ID Equals h.TimeID
Order By t.Period
[code].....
When Creating A Query Error "The Schema Returned By The New Query Differs From The Base Query"
Feb 29, 2012When Creating a query using the sear Criteria Builder . I keep getting the error : "The schema returned by the new query differs from the base query" what does that mean and how do i avoid this problem in future
View 2 RepliesUse Less Condition For Many Condition?
Aug 10, 2011i mean for e.g., numbers are between 1 and 100 .i want to show messagebox for each number as text for example "One" for 1.
View 1 Replies.net Dropdownlist If Condition?
Oct 18, 2010I had posted this question before but didn't get the right answer -here's my code again with the if condition.
Dim provider As CultureInfo = CultureInfo.InvariantCulture
Dim a1 As DateTime = Nothing
If date1.selectedvalue isnot nothing Then
[code]....
25 Alphanumeric Key With Condition?
Sep 25, 2011I have a problem. I have been programming an activation type of security protection for my software but i ran into problems when i try to generate an alphanumeric key with conditions. i cant seem to be able to make the keys to be valid with the condition. Basically i can get the 25 keys but all of them seem to be returning 1 (ones) instead of 0 (zero which what i want. below is my sample code may be someone can tell me what i am doing
[Code]...
Exit Sub If Condition Is Met?
Dec 8, 2009I have the following code which gives me an error at run time. The problem is when TxtSearch.Text - is not an integer a message box should be prompted saying- Only a numeric value is allowed in this field, otherwise continue with the sub.
Private Sub ButtonSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonSearch.Click
Dim query As String
[Code].....
The error I receive is showing ''saved_prac = cmd.ExecuteScalar()''..
First it brings the Message box - Only a numeric value is allowed in this field. When I OK it, then it brings another message box "error converting data type varchar to numeric". When you click OK the application crashes...