Execute SQL query in SSJS.js

execute SQL query in SSJS.js

<script runat="server">
Platform.Load("Core","1.1.1");

try {
var qd = QueryDefinition.Init("SQL_Query_External_Key");   
  var campaignId = 'WINTER SALE'
  var sql = "SELECT SubscriberKey, EmailAddress, FirstName, Status FROM MasterCustomer WHERE Status = '" + campaignId + "' FROM CampaignMaster";

  var status = qd.Update({
        Name : "SQL_Query_Name",
        QueryText : sql
    });
  var status = qd.Perform();  
}
catch (e) {
 Write(Stringify(e));
}
 </script>