Comparing Entity Framework 4 New Stored Procedure Support to LINQ to SQL
While some of them are quite interesting (e.g., fluent mappings, etc.), many of the other features being added have already been available in other frameworks like LINQ to SQL. EF 4, on the other hand, exposes that parameter as an actual ObjectParameter (rather than a "ref int") and all the rest of the parameters as their natural primitives
Tim Acheson's Blog : Executing a stored procedure with an output parameter using Entity Framework
If so, that is the road to a performance and security nightmare sometime in the future - probably long after the devloper has left! Tim Acheson (03 Apr 12, 17:47) Reply Hi Andrew! "start with ... I'm using a sproc to insert a new row into a table with a generated primary key (using an identity, though in the future it will be a sequence).I want to use an output param to return the generated value to the caller
While some of them are quite interesting (e.g., fluent mappings, etc.), many of the other features being added have already been available in other frameworks like LINQ to SQL. In previous versions of EF, working with stored procedures was quite limited and really only usable with CRUD operations that were mapped to already defined entities
KishoR NaiK: LINQ - Retrive data from database using stored procedure with LINQ to SQL
http://kishor-naik-dotnet.blogspot.com/2010/11/linq-retrive-data-from-database-using.htmlThis gives us the advantage of using Visual Studio's IntelliSense feature to expose them as methods together with the strongly-typed parameters which might be needed to call the stored procedures
What I have is a database table with a datetime in string format and a stored procedure which returns all the data.What I want to do is load a dropdown list with MonthName and Year for a selection choice on generating monthly report. Since the page is not expecting any return from the stored procedure, I want to execute the stored procedure asyncronously so that the user can continue working on the web page and other web pages while the stored procedure is running in the background
How to call stored procedure using LINQ to SQL - Fryan's Digital World
The LINQ to SQL object relational mapping that ships in .NET 3.5 is flexible and can be used to create data model classes whose object model can be independent of the underlying database schema
Challa Biztalk, DotNet and MSBI FAQ's Blog: Stored Procedure Optional Parameters using LINQ to SQL
http://challadotnetfaq.blogspot.com/2009/05/stored-procedure-optional-parameters.htmlStored Procedure Optional Parameters using LINQ to SQL By default using the LINQ to SQL DataContext design surface (or the SQL Metal command line tool), all parameters are created for a Stored Pr... WPF Interview Questions and Answers : Part 1 WPF Interview Questions and Answers What is WPF? Windows Presentation Foundation (WPF) is a next-generation presentation system for bui..
ADO.NET :: How To Call A Stored Procedures With Varchar Output Parameters In LINQ
View 3 Replies View Related Stored Procedure Call With Parameters In .NET MVC? Apr 22, 2010 I have a working controller for another stored procedure in the database, but I am trying to test another. I have attempted converting the service results to IQuery, List, and Array, however, I still have the problem with the first record being repeated 4 times
The values can be passed to stored procedures by: By supplying the parameter values exactly in the same order as given in the CREATE PROCEDURE statement
After mapping the procedure to the product entity class by drag and drop method onto the designer, it will auto-generate a function in the designer class with the name same as of the stored procedure i.e
The DataTable class does not implement either interface, so you must call the AsEnumerable method to use the DataTable as a source in the From clause of a LINQ query
Ritesh Kesharwani: Table Value Parameter with LINQ, (LINQ for Stored Procedure that has datatable as an input parameter)
http://riteshkk2000.blogspot.com/2010/10/table-value-parameter-with-linq-linq.htmlFriday, October 01, 2010 Table Value Parameter with LINQ, (LINQ for Stored Procedure that has datatable as an input parameter) Table Value Parameter with LINQ, (LINQ for Stored Procedure that has datatable as an input parameter) If you are using LINQ to SQL with SQL server database then Visual Studio will not allow you to drag your SP into dbml file like you do for other simple SP and also Visual Studio will not able to generate the code for this
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Fixing LINQ to SQL Issue: Stored Procedure Definition Returns int Instead of ResultSet
Overriding it to force it off will cause it to return data (which is likely just ignored), but it will be able to determine the proper format of the records returned. Parametrized stored proc compiles and executes on the runtime so dbml generation tool is not sure of the resulting IsingleResult object .To make this work just copy again your select statement at the end of the stored proc and execute it.Now try dragging storedproc from server explorer and it should work as usual
You could do save them one-by-one which can be expensive if the count is huge, (or) you could serialize them to a xml string and pass it to sp and have the SP parse it and save it to tables. You can use table-valued parameters to send multiple rows of data to a Transact-SQL statement or a routine, such as a stored procedure or function, without creating a temporary table or many parameters
How to Call a Stored Procedure
Name: Email: Comment: Home Tuning Services Featured Articles How to cache stored procedure results using a hash key There are a lot of different design patterns that lend themselves to creating SQL Server Database Optimization Guide In the troubleshooting guide we went over the different physical bottlenecks that can Yet Another Temp Tables Vs Table Variables Article The debate whether to use temp tables or table variables is an old Using Union Instead of OR Sometimes slow queries can be rectified by changing the query around a bit. You do this because if the order of the parameters were to change, then the procedure would error out (or even worse pass the incorrect values to the parameters)
zainnab 26 Oct 2007 6:39 AM I was wondering if anyone would get the reference to Hackers hehehe Glen 22 Jan 2008 8:51 PM I have a complex stored proc that i would like to run but can not be generated as it contains either temp tables or nested loops. Linq will change his won signature or he will do nothing ( you will do erease the current store Procedures and readd this ) ? zainnab 15 Sep 2008 12:14 PM Yep if the stored proc signature changes you have to re-add the proc to your model so the app is aware of the change JNick 15 Sep 2008 2:05 PM Can I specified to the dbml to regenerate the designer.cs, each time I build the project ? zainnab 18 Sep 2008 10:15 AM Well, yes and no
What I have is a database table with a datetime in string format and a stored procedure which returns all the data.What I want to do is load a dropdown list with MonthName and Year for a selection choice on generating monthly report. The difference between this post and most threads I've seen is I don't want to run a stored proc within the report and send parameters to the stored proc
For example, it is easier to delete a large number of records via stored procedure if you can call the delete procedure one time with a collection of record IDs instead of the same stored procedure over and over (one ID at a time). Using table valued parameters makes it possible to send in a collection of items from your client application to the SQL server in a single roundtrip, without using XML or string parsing
After dropping the stored procedure by drag and drop method onto the designer area, it will auto-generate a function in the designer class with the name same as of the stored procedure i.e
Not Now Nigel: LINQ to SQL Dynamic Stored Procedures
http://not-now-nigel.blogspot.com/2012/01/linq-to-sql-dynamic-stored-procedures.htmlLINQ to SQL works through defining class members that maps LINQ onto the entity and makes use of attributes to map columns, parameters and returns to .Net classes. The implementation of this stored procedure for any given named table may be complex, for example, they may include selecting output from child tables where foreign key are present
Reader Level: Article Using Stored Procedure in LINQ By Dhananjay Kumar on Jan 04, 2011 LINQ, Stored Procedure, Stored Procedure in LINQ, Using Stored Procedure, We have a strored procedure as below
Zeeshan Hirani - Using Stored Procedures In Linq
Notice that after calling our stored procedure in a Linq query we are further filtering the result by getting only customers with contact title of Sales Representative. If the stored procedure does not return any particular entity, dragging the stored procedure on the designer would generate a class on the fly which would contain properties that match the columns your stored procedure is returning
Linq to Sql - Using Stored Procedures
The example below calls the stored procedure CustOrdersHist in the Northwind database and returns a datatable, as the stored procedure returns a single resultset. There are two type of Stored Procedure Calls you can map in the LLBLGen Pro project: action stored procedures (calling a procedure, passing in parameters, no result set returned), and retrieval stored procedures (calling a procedure, passing in parameters, resultset is returned)
Six simple steps to use a Stored Procedure in LINQ - CodeProject
Download source code - 1.06 MB Table of contents Introduction LINQ basics Step 1: Create a Stored Procedure Step 2: Create a LINQ Entity Step 3: Inherit from the DataContext class Step 4: Attribute using Function attribute Step 5: Invoke the ExecuteMethod call Step 6: Finally we call the data context in the client Introduction This is an extremely small article which describes how to flourish LINQ objects using a Stored Procedure. As this is a protected function, it changes the way you architect the DAL using the DataContext class and probably you would like to tweak and consider some options here
The ability to define data model classes that can be independent of the underlying database schema gives you much more agility as you build your application (since you can change the underlying column names without having to update your code). I was wondering if you had thought of providing selections of your blogs as PDF docs for download, so that we could have, for example, this LINQ series of posts all together in one place in chronological order
You don't say how are you building the model or what version of EF you are using, but I assume you can just go ahead and update the model from the DB and add the store procedure. They narrow down their search through the UI and when they hit the search button, the code behind takes all the arguments and sends it to my Linq service, which then needs to call on the stored procedure
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