.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Querying XML Data

Posted By:      Posted Date: October 10, 2010    Points: 0   Category :Sql Server

I'm pretty new to XML within SQL Server, but have picked up quite a bit. Now comes the hard part - querying.


Here's the format of my XML column:


Code Block


<EventType>ALTER_TABLE</< FONT>EventType>

<PostTime>2007-10-15T10:13:13.417</< FONT>PostTime>



View Complete Post

More Related Resource Links

XML data type in SQLSERVER 2000 for querying

Hello,   we’ve developed an application that uses a database with a XML data type column. It works fine with SQLSERVER 2005 an above, but we cannot create the structure in SQLSERVER 2000 because it doesn’t support that data type.   We’ve made some test with SQLXML 3.0 packet and SQLSERVER 2000 but it only adds pseudo-support to work with XML documents. We need to store XML documents into a column and then make selects using XPath sentences over that column. For instance: select * from users where description.exist('//info[@value = "francesc"]') = 1 Is there any way to achieve this using SQLSERVER 2000?? Thanks in advance! Francesc

Problems querying XML data with null values

If the tags have "xsi:nil" in them, then my query failes with a "XML parsing: line [x], character [x], undeclared prefix" error.  So my question is how to get the query to handle or ignore those tags with "xsi:nil" embedded in them.  So specifically, the first SQL query below is successful, and the second one fails with the aforementioned error.  Any comments appreciated, thanks. -- Declare XML variable DECLARE @data XML; -- Element-centered XML SET @data = N'<data> <customer> <id>1</id> <name>Allied Industries</name> </customer> <customer> <id>2</id> <name>Trades International</name> </customer> </data>'; -- Using the query() method SELECT T.customer.query('id').value('.', 'INT') AS customer_id, T.customer.query('name').value('.', 'VARCHAR(20)') AS customer_name FROM @data.nodes('data/customer') AS T(customer); Returns: 1 Allied Industries 2 Trades International ================== -- Declare XML variable DECLARE @data XML; -- Element-centered XML SET @data = N'<data> <customer> <id>1</id> <name>Allied Industries</name> <fax xsi:nil="true" /> </customer> <customer> <id>2</id> <name>Trades International</name> <fax xsi:nil=&quo

Inserting and querying data on the same table


I need to implement a logic where in I insert or update a table in a loop.If the record is inserted then I need to update the table.To check this I have given IF NOT EXISTS statement with a query. But IF NOT EXISTS always returns true, so many records are getting inserted and update always fails

How do I resove this problem

Problem querying SQL data


I entered the following C# code in my button-click event handler of a web form:

        DataClassesDataContext db = new DataClassesDataContext();


        Profile profile = db.Profiles.SingleOrDefault(p => p.Callsign == Textbox1.Text);


Both the 'Single' and 'SingleOrDefault' statements result in the following error message:

'System.Data.Linq.Table<Profile>' does not contain a definition for 'SingleOrDefault' accepting a first argument of type 'System.Data.Linq.Table<Profile>' could be found.

Also, is it permitted to refer to textbox text as the condition for selecting a row in the table?



Binding WPF Controls to an Entity Data Model

In this interview, programming writer, McLean Schofield, demonstrates how to bind WPF controls to an entity data model, using Visual Studio 2010 Beta 1. You can also learn more in the topic: Walkthrough: Binding WPF Controls to an Entity Data Model.

Surrogate vs Natural Primary Keys - Data Modeling Mistake 2 of 10

In case you're new to the series I've compiled a list of ten data modeling mistakes that I see over and over that I'm tackling one by one. I'll be speaking about these topics at the upcoming IASA conference in October, so I'm hoping to generate some discussion to at least confirm I have well founded arguments.

The last post in this series Referential Integrity was probably less controversial than this one. After all, who can argue against enforcing referential integrity? But as obvious as surrogate keys may be to some, there is a good deal of diversity of opinion as evidenced by the fact that people continue to not use them.

Editing the Data in a GridView

In addition to deleting a GridView's underlying data, another common need is to allow end users to edit the data displayed in a GridView. With ASP.NET 1.x's DataGrid control, editing the data is certainly possible, but requires creating three event handlers and writing a dozen or so lines of code. With the GridView and ASP.NET 2.0, it is possible to create an editable GridView without writing a single line of code! All of the necessary functionality is encapsulated within the GridView.

The GridView allows editing on a row-by-row basis. An editable GridView contains an additional column with an Edit button in each row. When the end user clicks on an Edit button that row becomes editable, causing the Edit button to change to Update and Cancel buttons and the other columns to become TextBoxes. The end user can then update one or more column values and click Update to save their changes.

Using ASP.NET 3.5's ListView and DataPager Controls: Displaying Data with the ListView

Prior to ASP.NET 3.5, developers who needed to display a set of records could choose between the GridView, DataList, and Repeater controls. The GridView provides rich data features, but has a very boxy layout; the DataList and Repeater allow for a more flexible layout, but lack the "point and click" data features found in the GridView, DetailsView, and FormView controls. The ListView bridges the gap between layout flexibility and built-in data features.

This article, the first in a series of articles on the ListView and DataPager controls, looks at the ListView's many available templates and illustrates how to display data. Read on to learn more!

Dynamic Data Templates in GridView ASP.NET 3.5

At a high level, Dynamic Data Templates can be seen as a system to very quickly build up a User Interface linked with the relevant data model, immediately enabling you to perform CRUD operations (Create, Read, Update, Delete) on the database using the specified data source. They provide a powerful method for building up these kinds of applications, and I'm going to focus on an overview of what Dynamic Data Templates actually are, and a few ways of customizing them to suit industry needs.

MS SQL Server: Search All Tables, Columns & Rows For Data or Keyword Query

If you need to search your entire database for specific data, this query will come in handy.

So when a client needs a custom report or some sort of custom development using Great Plains, most of the time I will have to track down the data in the system by running this query and find the table(s) it is in.

Displaying Data using ASP.NET 2.0 Repeater and C#

This tutorial will show you how to display data using the .NET Repeater Control, ASP.NET 2.0 and C#.NET

The Repeater control is a powerful tool and is easy to use.

First, you will need to import the System.Data.SqlClient namespace.

MVC architecture in ASP.Net using C# and Microsoft Data Access Application block

The Model-View-Controller (MVC) pattern separates the modeling of the domain, the presentation, and the actions based on user input into three separate classes [Burbeck92]:

Model. The model manages the behavior and data of the application domain, responds to requests for information about its state (usually from the view), and responds to instructions to change state (usually from the controller).

View. The view manages the display of information.

Controller. The controller interprets the mouse and keyboard inputs from the user, informing the model and/or the view to change as appropriate.

ASP.NET 4.0 Dynamic Data and Many to Many Entity Framework Entities

I did not play much with Dynamic Data controls in VS2008 and just made a cool discovery in VS2010 Beta 2. This may not even be new, but as I'm sitting 30,000+ feet over the Atlantic ocean, I don't have access to VS2008 at the moment to check.

Display data in gridview dynamicallay

I have AD domain which has 100000 users, I want to display all the users in gridview controls.Actually it is displaying users in gridview after parsing entire domain which takes around 30 min. I want to display the users while loading itself.It is continously getting user information from AD domain and getting each user details, I want to display the users information which already queried instead of waiting till getting all users information

asp.net display data in gridview

i want to display data in gridview binded to a sql datasource
but the problem part is i want to bind a field of that datasource to a dropdownlist and when a item is selected in that dropdownlist then correcposnding to that data will be displayed in gridview...

display data into GridView from excel sheet

I have to display data from excel sheet into my gridview and also I need to figure out a way to store data into excel files from my web page. I am using C# 3.5, VS 2008.

GridView control to show master-child or master-slave data, written in c#, asp.net

I previously made a master slave datagrid using Visual Studio 2003 .Net (original article) that would allow users to show data to clients using collapse and expand features. These features however did not carry over to gridview for many users. This tutorial will explaing how to create a collapsable/expandable gridview in frameworks 2.0 and higher
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend