Datatables - Merge columns together

provided that the columns returned by the datatables get are address, city , state, zip 1-4

if your data returned is a regular array

   { "mData": 0 , //or address field
     "mRender" : function ( data, type, full ) { 
     //data = mData
     //full is the full array address= [0] city = [1] state=[2] zip=[3] 
        return data+', '+full[1]+', '+full[2]+', '+full[3];}
      },

if your data is an associate array

   { "mData": 'address' , 
     "mRender" : function ( data, type, full ) { 
        return data+', '+full['city']+', '+full['state']+', '+full['zip'];}
      },

or you can call mRender independent of mData (though it seems not needed for this situation)

   { "mData": null , 
     "mRender" : function ( data, type, full ) { 
        return full['address']+', '+full['city']+', '+full['state']+', '+full['zip'];}
      },

EDIT: for datatables 1.10, just change the names a bit, drop the "m"

   { "data": null , 
     "render" : function ( data, type, full ) { 
        return full['address']+', '+full['city']+', '+full['state']+', '+full['zip'];}
      },

*note i'm not taking into account whether you should store this data in one column, just showing how its done

database table fields : id,first_name,last_name,email

datatable : full_name,email (without id) ?

"columns": [
            {
             "mData": null ,
             "mRender" : function ( data, type, full ) {
                return full['first_name']+' '+full['last_name'];
              }
             },