SQL Server :: Advantage And Disadvantage Of Lock In OLTP System?
Oct 15, 2010i want to know Advantage and Disadvantage of lock in OLTP system??
View 2 Repliesi want to know Advantage and Disadvantage of lock in OLTP system??
View 2 RepliesIf I use SqlDataSource control in my asp page to retrive data in viewgrid and some dropdownlist control then what is advantage and disadvantage?
View 1 RepliesI am starting big asp.net project but I could not decided LLbl or linq to sql. What is advantage or disadvantage of linq to sql and LLBL? Which one should I use?
View 5 RepliesHow to row lock in SQL Server 2005. I execute a sql for row locking and that is
SELECT *
FROM authors
WITH (HOLDLOCK, ROWLOCK)
WHERE au_id = '274-80-9391'
it work fine but in this case row is lock for update not for selection. I just want to know how to lock a row as a result another user can not see that row when issue a SQL in SQL Server. please guide me. thanks
is there a way do something like this:
[Code]....
I develop an application using LINQ to SQL. Recently I deploy the application on server and starts performance testing using WAPT for 100 users. Unfortunately, 90 requests are failed while placing an order and only 10 are passed. I analyse and found that for every failed request I got an error "System Exception: Transaction (Process Id 68) was Deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction."
View 5 RepliesHow do I go about securing files that are stored on the server? We have an ASP.NET app which generates PDFs. These are not stored in the wwwroot folder but in another folder i.e. C:inetpubdata. This provides more security but maybe not enough. The ASP.NET/IIS process will need write access to this folder so it generate the PDFs there.
Once the pdf is generated, it can be viewed using an ASP.NET form called viewpdf.aspx with the file to be viewed add to the query string like so viewpdf.aspx?FILE=mynewfile.pdf. This is loaded from a gridview.
The full path to C:inetpubdata is resolved and loaded in the Page_load event of the viewer page. Now I'm wondering how to secure this. Anybody could just view the file. Not by entering in the URL, as it won't been seen by IIS (its not in wwwroot), but could change the querystring in the viewpdf page.
How do I stop anybody hacking this?
I have a big excel file , and i want to upload it to server.
on upload_click , i have to do a processing which takes very long time,
because i am finding latitude and longitude from the google by reading that excel file.
and i wanted that when used click on CANCEL button the process should stop.
i have created a thread on upload_click and doing all this stuff in that thread .
when user clicks on CANCEL , i am aborting that thread.
but when user again tries to upload file , i am getting the error that file is in use .
to solve this problem i have to stop aspnet_wp.exe from task manager and have to try again .
I have the following items bound to my combobox:
Value: 1, Text: SNS
Value: 2, Text: ING
Value: 3, Text: ING
Choosing value 1 results in a SelectedValue of 1
Choosing value 2 results in a SelectedValue of 2
Choosing value 3 results in a SelectedValue of 2
does the combobox has as a disadvantage that the Text has to be unique?
I'm now getting into EF and from what I'm seeing so far, I wouldn't have to worry about writing stored procedures any more. Looks like EF takes care of all of that -- including INSERT's that store data in multiple tables. One of the things they taught us when learning stored procedures was that they're compiled which has performance benefits. How does EF 4 fare against using stored procedures?
View 3 RepliesWhat is the advantage of using a Mex Endpoint over setting
[code]....
I am not able to add the service using Add Service Reference. I am not able to get the WSDL using a browser.
2. If I add the tag <serviceMetadata
httpGetEnabled="true"
and remove Mex Endpoint, I am able to query the wsdl using browser and I am still able to add a refernce using Add Service Reference.
Then, What's the specific use of Mex Endpoint.
I am supposed to create a intranet web application and the question is what technology I will use? is that the ASPX with C # or the Java EE. in any case I want to know the great advantages that I will receive.
View 4 RepliesSince Themes in ASP.NET are used to style elements of your site, I was just wondering why would you use Themes rather than CSS, or is it common practice to use both? If so, when would you opt for one versus the other and why?
Just seems to me like Themes are kind of unnecessary, so I am just looking on clarification if there really is a good reason to use them, or it's just a part of the framework as an alternative(unnecessary) step to styling your site.
I hate webform that no matter what action is done with a client side page(such as clicking a dropdownlist to only see the Items), it cause a postback&re-rendering of the whole page and all of the page events is raised( page_init,page_load....complete....).
We know that the server side .cs page shoudnt have to go through all the events and many methods(such as "IsPostback",viewstate), in fact,it just have to do only one thing:get data from DB for the dropdownlist and show it to us, other part of the page just doesnt have to change.
We may achieve this effect using Ajax, but the key is I dont wanna raise too many useless event .
seems MVC can handle such a problem, one action of browser side is replied by exactly one method,and time isnot waste by raise event...
Is this the biggest advantage of MVC?
Possible Duplicate:
MVC versus WebForms
What are some of the advantages of using one over the other?
I am new to Entity frameworks-EF. As, EF is built on top of ADO.NET...If so, will there be any performance issue when we use it?Same way MVC also targets Test Driven , rapid application development only ..What speciality does it add for end-users?As per my understanding ASP.Net 2.0 itself is powerful without MVC and/or EF...
View 7 RepliesWe want to launch our website in two different countries. for that which one is the best option
Use same domain in both country, use different domain for each country
I am relatively new with the usage of asp.net and AJAX technologies and i am trying to add some ajax functionality to my web application.So, I was interested in finding out what the advantage is of using asp.net ajax libary and controls over the usage of simple javascript XMLHttpRequest.
View 3 RepliesSee in below I have writtine a
1. Singleton class Emp1 with Display Method and
2. Static Class with Static Method Display.
What is the advantage of singleton class over Static Class with Static members?
[Code]....
i want to develop intranet application.can i deveop it as a windows application.if it so what is the advantage than web application
if we develop windows application is it requires server?
I am trying to take advantage of the Content Delivery Network Support and have run into a snag
I set the script manager to look like this
<asp:ScriptManager ID="ScriptManager1" runat="server" EnableCdn="true">
I'm using ASP.NET 4 and the routing engine. In my Global.asax I have something like this.
routes.MapPageRoute(
"Items",
"manager/items",
"~/Manager/Item/Items.aspx"
);
Is writing a link this this acceptable?: <a href="/Manager/Items"></a> Should I be using the <% %> tags and code within to retrieve the route name, "Items" in this case?
When i started developing web applications i stored the authentication details of the user in two session variables
Session["UserName"]="username";
Session["Password"]="paswword-123";
But someone proposed me an idea to create a class which holds the UserName and Password properties and on succesful authentication i have been asked to create an instance of the class and set the UserName and Password properties and store that instance in the session.
I have been told that the session object is TypeSafe. Can someone explain what is typesafe coding and the advantage of storing the object in the session.
I have a stored procedure which fetches data after joining 8-9 tables and inserts that into a temp table. It was running fine till now, but now when the amount of data fetched have exceeded 20000, the SP is breaking. I have debugged the sp and found that this main query is failing after returning arround 15000-16000 records.
The error message says Transaction (Process ID) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. I know what is deadlock, but when i checked with SP_LOCK stored proc i only found that my process is running on database only. So how is this getting deadlocked when there are no other processes running simultaneously on server.
I have this function in aspx page.
[Code]....
and I call this function from JavaScript as below:
[Code]....
I want to know what is this technique called and what is the advantage of calling the function on that way