Showing posts from 2013
Difference between asynchronous (AJAX) and synchronous request? Now-a-days, this is a very common question that been asked in all most every basic interview – What is the main strength of AJAX? Or why and when should we use AJAX in web application?
And the most common answer is – “AJAX does not refresh or reload the whole page”. But, the more perfect answer is – “AJAX is an asynchronous technology where others request are synchronous.” So, what is the difference? In a word, a program does not wait for response after requesting an asynchronous call whereas synchronous does so. Here is a simple example – function check() {
var a=0;
a = getStatus(“getstatus.php?id=5”);
if(a==1) {
} else {
alert(“not active”);
} Here getStatus() function sends a AJAX request to the server with “getstatus.php?id=5” url and the php file decides (from database may be) the status and output/response as 1 or 0. But, this function will not work properly. It will alert “…

Read /Write in XML column in sqlserver

This is simple example to read and write in xml column of a table in sqlserver . You can directly execute in sqlserver too.

----------------- To insert/update in xml column
declare @t table (id int, xmlCol xml)

insert into @t values(1,'14747')

select * from @t;

update @t set xmlcol = '1474714749' where id =1

select * from @t

--even you cast as
select cast ( xmlcol as varchar(max)) , * from @t

----------------- Select example-----1st example --
Declare @responce xml; DECLARE @douvalue varchar(100);
SELECT @responce = ' 60.4655'
select @douvalue = @responce.value('(/double)[1]', 'varchar(100)');
select @responce, @douvalue AS DownloadEnvironment

--Declare @responce xml;
SELECT @responce = '

;WITH XMLNAMESPACES(DEFAULT 'http://www.webserviceX.NET/')
select @douvalue = @responce.value('/double[1]', 'varchar(100)');

select @douvalue

------2nd example - To retrieve value ---
declare @xml xml 
set @xml = '14747147491475014752…

Read And write xml data in xml column in sqlserver

Suppose I have an entry

assetsIDs_xml  '119'

update Designs set assetsIDs_xml = ''
where ( assetsIDs_xml.exist('/root/id[text()=119]') =1 ) 

SELECT            Columnlist FROM             tableName c WHERE AND((c.userIDs_xml.exist('/root/id[text()=sql:variable("@userID")]')= 1)

IIS not work, Give error "HRESULT...." or When IIS start gives error "Already running a process on this port"

Hello All,

In my pc, IIS was working fine as I know. Today when I want to run my site from IIS. It gives me above error . I am searching lot for my this issue. Even I was did stop my firewall , still getting the same.

So I googling and get solution that skype is also share the same port of IIS : 80. So follow below to solve this issue.

The cmd NETSTAT -ano showed Skype (via the PID) was using port 80.
This was preventing IIS starting a local website with the message:
The process cannot access the file because it is being used by another process. (Exception from HRESULT: 0x80070020) This was resolved in Skype by unchecking Tools > Options... > Advanced > Connection > "Use port 80 and 443 as alternatives for incoming connections"

Refer link :Prevent Skype using port 80 and causing IIS to throw a HRESULT: 0x80070020 Exception