Resolve error

 var express = require('express');
 var router = express.Router();
 var db = require('../lib/db');
+require('date-utils');
+
+var newDate = new Date();
 
 /* GET home page. */
 router.get('/', function(req, res, next) {
@@ -11,38 +14,52 @@ router.get('/', function(req, res, next) {
   var wsArr = new Array(); // 풍속
   var rainArr = new Array(); // 강우량
   var probArr = new Array(); // 사망 확률
+  var dataLen = 0; // 데이터 개수
   var empty = 0; // 초기값 유뮤, 0 : 자료 있음, 1 : 자료 없음
   var sql = ""; // 쿼리
   var index;
 
   // 이전 10분간 데이터 찾기
+  sql = "SELECT * FROM weatherInfo WHERE time >= DATE_FORMAT(DATE_ADD(now(), INTERVAL -10 MINUTE), '%Y-%m-%d %H:%i:%s')";
+  db.query(sql, function(err, rows, fields){
+  if (err) {
+    console.log(err);
+  } else {
+    if (rows.length == 0) {
+      empty = 1;
+    } else {
+      dataLen = rows.length;
+      for (index = 0; index < rows.length; index++){
+        var temp = rows[index].time.getMinutesBetween(newDate);
 
-    sql = "SELECT * FROM weatherInfo WHERE time >= DATE_FORMAT(DATE_ADD(now(), INTERVAL -10 MINUTE), '%Y-%m-%d %H:%i:%s')";
-
-    db.query(sql, function(err, rows, fields){
-      if (err) {
-        console.log(err);
-      } else {
-        if (rows.length != 10) {
+        if(temp == index){
+          probArr.push(rows[index].prob);
+          time.push(rows[index].time);
+          ptArr.push(rows[index].temperature);
+          wsArr.push(rows[index].wind);
+          rainArr.push(rows[index].rain);
+        }
+        else {
           empty = 1;
-        } else {
-          probArr.push(rows[0].prob);
-          time.push(rows[0].time);
-          ptArr.push(rows[0].temperature);
-          wsArr.push(rows[0].wind);
-          rainArr.push(rows[0].rain);
+          break;
         }
-        
-        res.render('index', {
-          empty,
-          time,
-          ptArr,
-          wsArr,
-          rainArr,
-          probArr
-        });
       }
-    })
+
+      if (empty == 1 && probArr.length != 0)
+        empty = 0;
+      }
+
+      res.render('index', {
+        empty,
+        time,
+        ptArr,
+        wsArr,
+        rainArr,
+        probArr,
+        dataLen
+      });
+    }
+  })
 });
 
 module.exports = router;