I am tring to use a custom select with a stored procedure in a linqdatasource. When I try to run it I get this error "The query results cannot be enumerated more than once." Im fairly new to programing and am not sure what Im doing wrong. I have a gridview that displays user data.
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I have a Listview that I want to read the results of a Stored procedure. I have created the DBML object with the table and the stored procedure. When I configure my LinqDataSource on the page I cannot specify the SProc - only the Table. Or do I need to do it in the Listview?
View 1 Replieshow can I create stored procedure and write my select statement in it, I know how to create dataset then put type stored procedure and assign it to the sp ... what I want is writing my sp... how can I make it ?
check the following code, this is what I want to write put I don't know where or how !
CREATE STORED PROCEDURE SP_CATEGORY
@CATEGORY VARCHAR(30)
AS
BEGIN
SELECT LATIN_NAME, ENGLISH_NAME, ARABIC_NAME, CATEGORY
FROM FLORA, CATEGORY_LIST
WHERE FLORA.CATEGORY=CATEGORY_LIST.CATEGORY_NAME AND CATEGORY_LIST.CATEGORY_NAME IN (SELECT * FROM SPLITLIST(@CATEGORY, ','))
END
where can I write this code ?!
i am using stored proc in linq to sql but i have done insert & delete operations but im unable to do the select operation i have tried but no use,whenever i enter the id into the textbox it should display the record?
View 5 RepliesLet's say I have a query like this:
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But I want to call a procedure (DeleteUser) for every rows returned from that query.
And of course the procedure has a parameter. But it should be the UserID which is returned from query.
So how to do it?
I am executing stored procedure using session.CreateSqlQueries but it is giving me exception as {"SQL queries do not currently support returning aliases"}.
I tried doing following also but it is not working for me
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i do have a stored procedure which inserts data and the message should be displayed that data has been sucessfully updated or not
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Just quick question, is it possible to Use a Stored Procedure which has a parameter in a select statement,, I mean something like the following
SELECT A, B
FROM Something
-- Something is the name of the Stored Procedure which take date parameter
When Select an entity by linq with entity framework 3.5 ...and thenn select it again using stored procedure ..which change the value for a field for that entity ... i got that with old value ...not procedure value...............When i called that procedure before .. the select ... i got the correct value.........but in my case i shall call the procedure after select with linq statment
View 4 RepliesI have procedure near below i want to call this procedure through "linq"
I use mvc 4 and .edmx
//table//
CREATE TABLE [dbo].[Board](
[BoardID] [uniqueidentifier] NOT NULL,
[Board] [varchar](50) NOT NULL
) ON [PRIMARY]
GO
//Procedure //
create procedure [dbo].[GetAllBoard]
as
select * from Board order by Board
I'm programming a webpage in ASP.NET which displays a list of students not listed as participants in something, and upon clicking a student name shows you a brief summary of their details, so the user can ensure they're selecting the right person.
My code currently correctly obtains their ID, adds it as a parameter to my stored procedure and executes the procedure;
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However, when I try to access the results I get the following error:
System.NullReferenceException: Object reference not set to an instance of an object.
Upon debugging, there don't seem to be any results returned... but when running just the stored procedure in SQL Server with the same data, it does return a single row, as expected.
How do I access this result so I can bind it to my fields?
(I am working in ASP.NET 3.5 in Visual Studio 2008, with SQL Server 2008.)
Ive been banging my head against the wall for the last 2 days with this query I am trying to produce. I have an application that creates requests and these requests have status codes dependant on how far along in the process they are : new request, awaiting approval, approved, in progress, complete When a request is moved to the next status, it Inserts a row into an auditing table, so we can track who moved it onto the next status, along with a timestamp. There are Service Level Agreements in place that mean that a request that is currently 'In Progress' must be actioned to 'Complete' within 5 days. I have been asked to create a query that will return all records that fall outside of this SLA. My main problem is trying to Select the time from the audit log for 'In Progress' and 'Complete' status codes. It would be simple if i only had to find one of the times, as i could add a "WHERE StatusCode = 'complete' clause to the query My Audit table is structured as follows:
[RequestID] [Request Status] [UserID] [CreateDate]
So far I have been successful in querying the table by using the DATEDIFF() function as below:
SELECT
DateDiff
(day,
( SELECT
top 1 CreateDate
FROM audit_tblRequest
WHERE RequestStatus
= 'In Progress'
AND RequestID
=
@RequestID Order
by CreateDate
DESC)
,(SELECT
top 1 CreateDate
FROM audit_tblRequestWHERE RequestStatus
= 90AND RequestID
=@RequestID
Order
by CreateDate
DESC)
)
This will return the difference in days to me, however, i cannot figure out how to integrate this into a query that will be run across all RequestIDs. I was wondering if there was any way to bundle the DateDiff function into a stored Procedure and be able to call it For Each RequestID in the result set I would need to pass the requestID as a parameter, and also add some If Else logic to only return records outside of the 5 Day SLA. Im sure there are some patches in the above logic, but my brain is about to explode and I needed to type it all out before calling it a day for today.
I have a stored procedure that receives 2 parameters and returns 3 columns.
Here is how I added the SP:
1. Added SP to entity model (.edmx) via update model from DB.
2. Did a Function Import -- selected my SP, clicked "Get Column Information" and then created a new complex type (myStoredProcedureName_Result) which I assigned.
3. My LINQ is the following:
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trying to write a stored procedure to select any 5 random columns from a selected row,this is the query i ve written so far
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I am using .Net 3.5, VS2008, MSSQL2008 I would like to perform CRUD operations through SP and want the SP to be bound to custom entities
View 8 RepliesI have an sp that I would like to us the data from one column to use as a parameter for the following Select Statement
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need to set the @customerID parameter = customer_data.CustomerID from the first Select Statement
I tried nested ListViews but can get the display wanted.In my database I have a Category Table and a Product table.They share the CG_ID value.I want to make a stored procedure that will use two select statements to produce a single table.that can be used as a ListView DataSource.
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redirect me to your own blog link or any other link explaining complete tutorial about how to implement gridview custom paging using stored procedure?
My search in google giving me old articles from year 2006. Right now I am using asp.net 3.5 and c#.
Is it possible to add multiple select statements in a single stored procedure. The select statements are getting data from different tables. If yes, could anybody provide an example in adding multiple select statements, which retrieve data from different tables in a stored procedure.
View 3 Repliesi want to know how to call stored procedure in entity framework. how to do code with controller class and with model.
i mean if i want to call insert,update,select,delete stored procedure for entity framework then what are stps i have to follow.
I'm using VS 2008 and SQL 2008.
I have created the tables and the stored procedures in SQL 2008.
In VS 2008, I created DataSet1.xsd in App_Code and created the connectionString in web.config file.
Then when I go into the DataSet1.xsd and try to add a TableAdapter, strange things happened.
First I chose the data connection, then selected "Use existing stored procedure", then there was nothing listed in the dropdownlists (in Select, Insert, Update, or Delete).
I'm sure the connectionString is correct because if I choose "Use SQL statement" and type in a "select * from mytable1", the TableAdapter can be created without any problem.
When can I use Stored Procedure? Is this useful for looping into multiple SELECT statements to return single value? How? Can anyone post some sample codes? I have text query and notice that my web application is slow and want to find ways to speed it up. Is there any possible ways aside from Stored Procedures?
View 4 RepliesThis is surareddy. i nead some small clarification in the "Stored Procedure"
how to convert the oracle Stored Procedure to sqlserver2005/2008 Stored Procedure.
right now i am enhancing the project that project already developed the oracle Stored Procedure. now our company is using sqlserver 2005/2008.
how to convert the Oracle Stored Procedure to sqlserver 2005 Stored Procedure
Initially, I have tried to use stored procedure. But I changed my mind and preferred to call sql query in codebase with command text. However, it stills tries to find initially-called stored procedure (which is neither called or exists).I think that it is related caching. But I tried it with different browsers it did not work.What might be the reason?
View 4 RepliesI am new to MVC framwork and have a big project on my hand.The MVC given a inbuilt membership provider .But I want to a custom database account management of users like admin user,subadmin user and site users.provide me functionlity(total step by step ) about login module with work with stored procedure and how i validate valid user login in the site and redirect from home page with displaying username etc.
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