--- a/about.php
+++ b/about.php
@@ -29,21 +29,29 @@
 
 <?php
 include_once("./lib/common.inc.php");
-$query = "SELECT DATE(importDate) as importday, count(*) as count, min(publishDate) as start, max(publishDate) as end 
-FROM `contractnotice` WHERE childCN = 0 AND parentCN = 0 AND DATE(importDate) in (select * from (SELECT DATE(importDate) 
-FROM `contractnotice` ORDER BY `importDate` DESC limit 1) alias)";
-$result = mysql_query($query);
+$query = 'SELECT DATE("importDate") as importday, count(*) as count, min("publishDate") as start, max("publishDate") as end 
+FROM contractnotice WHERE "childCN" = 0 AND "parentCN" = 0 AND DATE("importDate") = (select * from (SELECT DATE("importDate") 
+FROM contractnotice ORDER BY "importDate" DESC limit 1) alias) GROUP BY DATE("importDate")';
+$query = $conn->prepare($query);
+	$query->execute();
+	if (!$query) {
+		databaseError($conn->errorInfo());
+	}
 echo "<div>";
-$stats = mysql_fetch_array($result, MYSQL_BOTH);
+$stats = $query->fetch(PDO::FETCH_ASSOC);
 echo $stats["count"] . " new records in period " . $stats["start"] . "  to " . $stats["end"] ."<br>";
 
 
-$query = "SELECT DATE(importDate) as importday, count(*) as count, min(publishDate) as start, max(publishDate) as end 
-FROM `contractnotice` WHERE (childCN != 0 OR parentCN != 0) AND DATE(importDate) in (select * from (SELECT DATE(importDate) 
-FROM `contractnotice` ORDER BY `importDate` DESC limit 1) alias)";
-$result = mysql_query($query);
+$query = 'SELECT DATE("importDate") as importday, count(*) as count, min("publishDate") as start, max("publishDate") as end 
+FROM contractnotice WHERE ("childCN" != 0 OR "parentCN" != 0) AND DATE("importDate") = (select * from (SELECT DATE("importDate") 
+FROM contractnotice ORDER BY "importDate" DESC limit 1) alias) GROUP BY DATE("importDate")';
+$query = $conn->prepare($query);
+	$query->execute();
+	if (!$query) {
+		databaseError($conn->errorInfo());
+	}
 echo "<div>";
-$stats = mysql_fetch_array($result, MYSQL_BOTH);
+$stats =  $query->fetch(PDO::FETCH_ASSOC);
 echo $stats["count"] . " updated records in period " . $stats["start"] . "  to " . $stats["end"] ."<br>";