Get connection to HTML and JS database [closed]

You should not use JavaScript to access the database for several reasons, but if you really want to do so, here is an example:

var connection = new ActiveXObject("ADODB.Connection") ;

var connectionstring="Data Source=<server>;Initial Catalog=<catalog>;User ID=<user>;Password=<password>;Provider=SQLOLEDB";

connection.Open(connectionstring);
var rs = new ActiveXObject("ADODB.Recordset");

rs.Open("SELECT * FROM table", connection);
rs.MoveFirst
while(!rs.eof)
{
   document.write(rs.fields(1));
   rs.movenext;
}

rs.close;
connection.close; 

A good way to do this would be to use secondary languages such as PHP, Java, .NET, etc.

I hope I have helped.

No, you can not consider using webservices and communicating with jquery ajax.

Communication can not be handled without using a Web Service . I noticed in your last question (which you deleted), that you are trying to work with Worklight , so I suggest the this reading