ADO.NET :: How To Wirte Linq Qurey To Select From And To Records In Table
Feb 9, 2011can we wirte linq query to select few records based on the from and to records..
View 3 Repliescan we wirte linq query to select few records based on the from and to records..
View 3 Replieshow can i select a record from A table and insert into B table using linq?
View 2 RepliesI have a basic CMS which I'm adding to a site to display some downloads organised into groups. I have two tables, one for the groups and one for the downloads. I'm using a repeated to display the groups with another repeater inside to display the children. This works perfectly.
However some of my download groups may not have any downloads related to them and I'd like to handle this by filter the groups so that only those with a relate download record(s) are shown.
I'm trying to do this with the query which populates the top repeater based on some ideas I read but I must be going wrong with the syntax.
Here is what I'm using to try and only select downloads groups which have downloads linked to them by the download group ID.
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Can anyone offer any thoughts on how I should construct the query to perform this?
Is there anyway I can access the individual attributes of a profile record?
I want to access the address fields of a user stored in my aspnet_profiles table.
how to insert records in multiple table using with foreign key with linq to sql?
View 2 RepliesI have to retreive all records from a table except 1 record. For example: I give example from default database in SQL ie "master" In "master" DB we have "spt_values" table. Now if I want to retreive all records from spt_values table except 1-1 record of type = A and type = B. To retreive all records its a simple query "Select * from spt_values where type in ('A','B')" -- this will returns 16 records. Now I want to retreive all record except 1-1 record left in each type, so it will return 14 records in result.
View 6 Repliesi am new to this linq concept,
i have used the following code to delete multiple records in my table,
but when i hit the button insteading deleting multiple records only one record is getting deleted
below is the code
protected void Button1_Click(object sender, EventArgs e)
I have several tables to load from depending on a string value using Linq to Sql I currently have
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but of course that only gets the specific table DOffices if I wanted to grab tables at runtime what would be the best way to go about it?
I have 2 tables ( having one to many relation )
SELECT CAT.CAT_TYPE, Agencies.Name
FROM CAT INNER JOIN
Agencies ON CAT.CAT_ID = Agencies.CAT_ID
CAT_A Val1
CAT_A Val2
CAT_A Val3
I need the select statement to list only the last records of the Table Agencies , see the red color at the top , if this can be only acheived using SP
I have 2 Tables , OrderDetails and Requests In my LINQ to SQL dbml file. OrderDetailsID is a foreign key in Requests Table. I want to write the query to get the sum of UnitCost from OrderDetails based on OrderId. And If there is a row in Requests Table for each OrderDetailsID, and the Requests.Last.RequestType="Refund" I want to reduce the total refund amount from the main sum otherwise If there is no row based on OrderDetailsID, add to sum. Here is the way I implement that. I am looking to prevent using "For each".
iRefund = (From od1 In dc.OrderDetails _
Where od1.OrderID =1 _
Select od1.UnitCost).Sum
Dim objOrderDetails = (From od1 In dc.OrderDetails _
Where od1.OrderID =1 _
Select od1)
For Each OrderDetail As ORM.Entities.OrderDetail In objOrderDetails
If Not OrderDetail.Requests Is Nothing Then
IF OrderDetail.Requests.Last.RequestType="Refund" Then
iRefund -= OrderDetail.UnitCost
End If
End If
Next
Mmy data table has four columns. How can I get only selected columns name?
View 5 Repliesmy requirement is that SSRS 2005 report should show all records with checkboxes(or can be by any other means of flagging ?) .
Now the records for which checkboxes are checked or flagged are only to be included in the exported excel sheet or pdf .
I have two Data Table, One data table contain Product-A information, and another data table contain Product-B Information, I want to get the uncommon values between the two data table, I would like to achieve this using LINQ, find the sample values below
Product Data Table
Product-A-Id ProductName
W10012 A
W10013 B
W10014 C
W10015 D
Sales Data Table
ProductId ProductName
W10013 B
W10013 B
W10015 D
X10020 AC
I want to find the uncommon data from both data table using LINQ, So find my expected Data Table result is
Result Data Table
ProductId ProductName
W10012 A
W10014 C
X10020 AC
I have a datagrid control which is bound to a table which containing more than 1000 records. And i want to show only 25 records once a time. I have used paging in datagrid. But each time the next page index is set, query is fired again. This takes lots of time. So what is the easiest way to bound data in this case to improve performance.
View 3 RepliesWhat is difference between select { } and select new {} In Linq Query
View 3 RepliesI have an Access 2010 DB that I have a table of RAW data in. In my scenero when table 'a' has been populated all the rows with the updatedate of Now() get moved to another table... the SQL is like this...
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As you can see it is a very simple query but it does NOT return any rows. There are actually 404 rows with todays date in teh Append_Date column.
I am stumped as to why it does not return rows?
I have two tables for storing language translations - tblEN and tblES. They have the same structure which is nvcEnglish and nvcLocal - both nVarChar fields.
In nvcLocal of the Spanish table, I enter the Spanish translations of words and phrases used within my app. Problem is, when I add a bunch of new records to the English table I also have to go in and repeat the data entry into the Spanish table. I am wondering if there is a way to import the newly added records into the Spanish table using Transact SQL?The plain language query would be something like:
If the data in tblEN.nvcEnglish does not exist in tblES.nvcEnglish then insert a new row into tblES with the values from tblEN
I have two tables and I want to display the second one based on the primary key:
the first table is tbl1 (id,fName,lName), and the second one is scnds(id,course,tbl1id).
I am practice using MVC 2.0, so I bulilt the the class repository
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Then created the Studentcontroller
[Code]....
The problem is if I used Details method it will show only the first record, but I want to display every course that specific a student has. I don't know if the problem in repository or in the controller.
I need Moving records up and down with Linq
View 1 RepliesI need to find the count of records between the first and last day of the current month.I am very new to linq and having doubts in getting the count, below is the code i have written.
[code]....
There is likely an easy solution to this problem, but I'm stalling on it.Problem:Using EntityDatasource with a where="filed_id = @xxxx" the parameter is tied to a dropdownlist and works fine except I want to be able to select all records or basically no where condition. Is there a some way to do this without going to code behind?
View 2 Repliesi am trying to get a list of recors that are not already linked via many to manyTable "keyword" is linked to table "directories" thought a many to many link using table "directoriesKeywords"what i want to do is get a list of keywords that are not linked to a certain directory.I have somthing like this( i ahve tried many variations
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I have one table named 'dbo.ac_Products' Within this table there is a column named 'ProductId' There is also another table named 'dbo.ac_CatalogNodes' Within this table there is a column named 'CatalogNodeId' and a column named 'CatalogNodeType'
I need to delete all the rows from 'dbo.ac_Products' and 'dbo.ac_CatalogNodes' where 'ProductId' = 'CatalogNodeId' and 'CatalogNodeType' = 1
i have 3 tables which are Table A(a Id,b Id),
Table B(b Id,a Id,c Id),
Table C(c Id,b Id)
How can i select Table C column by using table A?
I have two DataSet were mention below DataSet1 & DataSet2. DataSet1 records are already in User Database table. I would like to insert the DataSet2 records to User table, Before going to insert the Dataset2, I am trying to check the duplicate records in DataSet2 Compare with DataSet1. How to identify the duplicate records in DataSet2 using LINQ. I want to Get the List of Duplicate record set. Or Return the True Or False.
Note: In User table SiteId and UserName is Combinational primary key Records.