Note: This program will work only in Internet Explorer.
In this article I will explain how to connect to a SQL database with JavaScript and how to get data from the database.
First I create a database called EmpDetail. Then I created a table in this database.
Query Code
CREATE TABLE [dbo].[emp](
[id] [int] NULL,
[name] [varchar](50) NULL,
[salary] [int] NULL
) ON [PRIMARY]
Now insert some data into the emp table.
Complete Program
JavaScriptConnectivity.htm
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript" >
function loadDB()
{
var connection = new ActiveXObject("ADODB.Connection");
var connectionstring = "Data Source=.;Initial Catalog=EmpDetail;Persist Security Info=True;User ID=sa;Password=Micr0s0ft;Provider=SQLOLEDB";
connection.Open(connectionstring);
var rs = new ActiveXObject("ADODB.Recordset");
rs.Open("select * from emp", connection);
rs.MoveFirst();
var span = document.createElement("span");
span.style.color = "Blue";
span.innerText = " ID "+" Name "+" Salary";
document.body.appendChild(span);
while (!rs.eof)
{
var span = document.createElement("span");
span.style.color = "green";
span.innerText = "\n " + rs.fields(0) +" | "+ rs.fields(1) +" | "+ rs.fields(2);
document.body.appendChild(span);
rs.MoveNext();
}
rs.close();
connection.close();
}
</script>
<style type="text/css">
#main {
height: 264px;
}
</style>
</head>
<body onload="loadDB()">
<div id="show" style="font-size: x-large; font-weight: bold">
Employee Details</div>
</body>
</html>
Output
