Req : CRUD Operations using JavaScript for SQL Sqerver

Question

Dear Developers....

  I got the New requirement ..,

  i.e  How to Work CRUD Operations using JavaScript for SQL Sqerver  ... 

condition 1 : .aspx.cs file have only page_load() only ...,

condition 2 :  connection string is available in either web.config file or .aspx file only

Please Provide design and code files to my account..,

T V S Narasimha Murthy

Associate Software Engineer,

Blue Frog Mobile Technologies.,

Visakhapatnam.