Index: branches/version-2_11-dev/data/class/pages/frontparts/LC_Page_FrontParts_LoginCheck.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/frontparts/LC_Page_FrontParts_LoginCheck.php	(revision 21145)
+++ branches/version-2_11-dev/data/class/pages/frontparts/LC_Page_FrontParts_LoginCheck.php	(revision 21376)
@@ -157,7 +157,7 @@
                     $objQuery = SC_Query_Ex::getSingletonInstance();
                     $where = '(email = ? OR email_mobile = ?) AND status = 1 AND del_flg = 0';
-                    $ret = $objQuery->count("dtb_customer", $where, array($arrForm['login_email'], $arrForm['login_email']));
+                    $exists = $objQuery->exists("dtb_customer", $where, array($arrForm['login_email'], $arrForm['login_email']));
                     // ログインエラー表示 TODO リファクタリング
-                    if($ret > 0) {
+                    if ($exists) {
                         if (SC_Display_Ex::detectDevice() === DEVICE_TYPE_SMARTPHONE) {
                             echo $this->lfGetErrorMessage(TEMP_LOGIN_ERROR);
Index: branches/version-2_11-dev/data/class/pages/products/LC_Page_Products_Review.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/products/LC_Page_Products_Review.php	(revision 21185)
+++ branches/version-2_11-dev/data/class/pages/products/LC_Page_Products_Review.php	(revision 21376)
@@ -164,8 +164,8 @@
         $arrForm = $objFormParam->getHashArray();
 
-        //重複メッセージの判定
+        // 重複メッセージの判定
         $objQuery =& SC_Query_Ex::getSingletonInstance();
-        $flag = $objQuery->count("dtb_review","product_id = ? AND title = ? ", array($arrForm['product_id'], $arrForm['title']));
-        if ($flag > 0){
+        $exists = $objQuery->exists("dtb_review","product_id = ? AND title = ? ", array($arrForm['product_id'], $arrForm['title']));
+        if ($exists) {
             $arrErr['title'] .= "重複したタイトルは登録できません。";
         }
Index: branches/version-2_11-dev/data/class/pages/products/LC_Page_Products_Detail.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/products/LC_Page_Products_Detail.php	(revision 21325)
+++ branches/version-2_11-dev/data/class/pages/products/LC_Page_Products_Detail.php	(revision 21376)
@@ -541,7 +541,7 @@
         } else {
             $objQuery =& SC_Query_Ex::getSingletonInstance();
-            $count = $objQuery->count("dtb_customer_favorite_products", "customer_id = ? AND product_id = ?", array($customer_id, $favorite_product_id));
-
-            if ($count == 0) {
+            $exists = $objQuery->exists("dtb_customer_favorite_products", "customer_id = ? AND product_id = ?", array($customer_id, $favorite_product_id));
+
+            if (!$exists) {
                 $sqlval['customer_id'] = $customer_id;
                 $sqlval['product_id'] = $favorite_product_id;
Index: branches/version-2_11-dev/data/class/pages/mypage/LC_Page_Mypage_Favorite.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/mypage/LC_Page_Mypage_Favorite.php	(revision 21368)
+++ branches/version-2_11-dev/data/class/pages/mypage/LC_Page_Mypage_Favorite.php	(revision 21376)
@@ -177,11 +177,10 @@
     // お気に入り商品削除
     function lfDeleteFavoriteProduct($customer_id, $product_id) {
-        $objQuery       =& SC_Query_Ex::getSingletonInstance();
-        $count      = $objQuery->count("dtb_customer_favorite_products", "customer_id = ? AND product_id = ?", array($customer_id, $product_id));
+        $objQuery =& SC_Query_Ex::getSingletonInstance();
 
-        if ($count > 0) {
-            $objQuery->begin();
+        $exists = $objQuery->exists("dtb_customer_favorite_products", "customer_id = ? AND product_id = ?", array($customer_id, $product_id));
+
+        if ($exists) {
             $objQuery->delete('dtb_customer_favorite_products', "customer_id = ? AND product_id = ?", array($customer_id, $product_id));
-            $objQuery->commit();
         }
     }
Index: branches/version-2_11-dev/data/class/pages/upgrade/LC_Page_Upgrade_Download.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/upgrade/LC_Page_Upgrade_Download.php	(revision 21185)
+++ branches/version-2_11-dev/data/class/pages/upgrade/LC_Page_Upgrade_Download.php	(revision 21376)
@@ -268,6 +268,6 @@
         $objQuery = new SC_Query_Ex();
 
-        $count = $objQuery->count($table, $where, array($objRet->product_id));
-        if ($count) {
+        $exists = $objQuery->exists($table, $where, array($objRet->product_id));
+        if ($exists) {
             $arrUpdate = array(
                 'module_code' => $objRet->product_code,
Index: branches/version-2_11-dev/data/class/pages/shopping/LC_Page_Shopping.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/shopping/LC_Page_Shopping.php	(revision 21295)
+++ branches/version-2_11-dev/data/class/pages/shopping/LC_Page_Shopping.php	(revision 21376)
@@ -537,6 +537,6 @@
         $objQuery =& SC_Query_Ex::getSingletonInstance();
         $where = "email = ? AND status = 1 AND del_flg = 0";
-        $count = $objQuery->count("dtb_customer", $where, array($login_email));
-        return $count > 0;
+        $exists = $objQuery->exists("dtb_customer", $where, array($login_email));
+        return $exists;
     }
 
Index: branches/version-2_11-dev/data/class/pages/admin/basis/LC_Page_Admin_Basis.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/basis/LC_Page_Admin_Basis.php	(revision 21185)
+++ branches/version-2_11-dev/data/class/pages/admin/basis/LC_Page_Admin_Basis.php	(revision 21376)
@@ -82,6 +82,5 @@
         $objDb = new SC_Helper_DB_Ex();
 
-        $cnt = $objDb->sfGetBasisCount();
-        if ($cnt > 0) {
+        if ($objDb->sfGetBasisExists()) {
             $this->tpl_mode = 'update';
         } else {
Index: branches/version-2_11-dev/data/class/pages/admin/basis/LC_Page_Admin_Basis_Tradelaw.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/basis/LC_Page_Admin_Basis_Tradelaw.php	(revision 21203)
+++ branches/version-2_11-dev/data/class/pages/admin/basis/LC_Page_Admin_Basis_Tradelaw.php	(revision 21376)
@@ -76,6 +76,5 @@
         $objFormParam->setParam($_POST);
 
-        $cnt = $objDb->sfGetBasisCount();
-        if ($cnt > 0) {
+        if ($objDb->sfGetBasisExists()) {
             $this->tpl_mode = 'update';
         } else {
Index: branches/version-2_11-dev/data/class/pages/admin/basis/LC_Page_Admin_Basis_Point.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/basis/LC_Page_Admin_Basis_Point.php	(revision 21203)
+++ branches/version-2_11-dev/data/class/pages/admin/basis/LC_Page_Admin_Basis_Point.php	(revision 21376)
@@ -76,6 +76,5 @@
         $objFormParam->setParam($_POST);
 
-        $cnt = $objDb->sfGetBasisCount();
-        if ($cnt > 0) {
+        if ($objDb->sfGetBasisExists()) {
             $this->tpl_mode = 'update';
         } else {
Index: branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_Category.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_Category.php	(revision 21357)
+++ branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_Category.php	(revision 21376)
@@ -205,6 +205,6 @@
         // 子カテゴリのチェック
         $where = "parent_category_id = ? AND del_flg = 0";
-        $count = $objQuery->count("dtb_category", $where, array($category_id));
-        if ($count > 0) {
+        $exists = $objQuery->exists("dtb_category", $where, array($category_id));
+        if ($exists) {
              $this->arrErr['category_name'] = "※ 子カテゴリが存在するため削除できません。<br/>";
              return;
@@ -213,6 +213,6 @@
         $table = "dtb_product_categories AS T1 LEFT JOIN dtb_products AS T2 ON T1.product_id = T2.product_id";
         $where = "T1.category_id = ? AND T2.del_flg = 0";
-        $count = $objQuery->count($table, $where, array($category_id));
-        if ($count > 0) {
+        $exists = $objQuery->exists($table, $where, array($category_id));
+        if ($exists) {
             $this->arrErr['category_name'] = "※ カテゴリ内に商品が存在するため削除できません。<br/>";
             return;
@@ -331,6 +331,6 @@
             $arrWhereVal[] = $category_id;
         }
-        $count = $objQuery->count('dtb_category', $where, $arrWhereVal);
-        if ($count > 0) {
+        $exists = $objQuery->exists('dtb_category', $where, $arrWhereVal);
+        if ($exists) {
             $arrErr['category_name'] = "※ 既に同じ内容の登録が存在します。<br/>";
             return $arrErr;
Index: branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_UploadCSVCategory.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_UploadCSVCategory.php	(revision 21317)
+++ branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_UploadCSVCategory.php	(revision 21376)
@@ -374,10 +374,10 @@
             // 同じidが存在すればupdate存在しなければinsert
             $where = "category_id = ?";
-            $category_count = $objQuery->count("dtb_category", $where, array($sqlval['category_id']));
-            if($category_count > 0){
+            $category_exists = $objQuery->exists("dtb_category", $where, array($sqlval['category_id']));
+            if ($category_exists) {
                 // UPDATEの実行
                 $where = "category_id = ?";
                 $objQuery->update("dtb_category", $sqlval, $where, array($sqlval['category_id']));
-            }else{
+            } else {
                 $sqlval['create_date'] = $arrList['update_date'];
                 // 新規登録
@@ -477,10 +477,10 @@
             }
             $where = "parent_category_id = ? AND category_id <> ? AND category_name = ?";
-            $count = $objQuery->count('dtb_category',
+            $exists = $objQuery->exists('dtb_category',
                         $where,
                         array($parent_category_id,
                                 $item['category_id'],
                                 $item['category_name']));
-            if($count > 0) {
+            if ($exists) {
                 $arrErr['category_name'] = "※ 既に同名のカテゴリが存在します。";
             }
Index: branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_Product.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_Product.php	(revision 21352)
+++ branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_Product.php	(revision 21376)
@@ -800,7 +800,6 @@
 
         $objQuery = new SC_Query_Ex();
-        $count = $objQuery->count('dtb_products', $where, $sqlval);
-        if (!$count) return false;
-        return true;
+        $exists = $objQuery->exists('dtb_products', $where, $sqlval);
+        return $exists;
     }
 
Index: branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_UploadCSV.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_UploadCSV.php	(revision 21317)
+++ branches/version-2_11-dev/data/class/pages/admin/products/LC_Page_Admin_Products_UploadCSV.php	(revision 21376)
@@ -391,8 +391,8 @@
             // 同じidが存在すればupdate存在しなければinsert
             $where = "product_id = ?";
-            $product_count = $objQuery->count("dtb_products", $where, array($sqlval['product_id']));
-            if($product_count > 0){
+            $product_exists = $objQuery->exists("dtb_products", $where, array($sqlval['product_id']));
+            if ($product_exists) {
                 $objQuery->update("dtb_products", $sqlval, $where, array($sqlval['product_id']));
-            }else{
+            } else {
                 $sqlval['create_date'] = $arrList['update_date'];
                 // INSERTの実行
Index: branches/version-2_11-dev/data/class/pages/admin/system/LC_Page_Admin_System_Editdb.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/system/LC_Page_Admin_System_Editdb.php	(revision 20970)
+++ branches/version-2_11-dev/data/class/pages/admin/system/LC_Page_Admin_System_Editdb.php	(revision 21376)
@@ -170,5 +170,5 @@
             if($param['indexflag'] != $param['indexflag_new']) {
                 // 入力値がデータにある対象テーブルかのチェック
-                if($objQuery->count('dtb_index_list', 'table_name = ? and column_name = ?', array($param['table_name'], $param['column_name']))) {
+                if ($objQuery->exists('dtb_index_list', 'table_name = ? and column_name = ?', array($param['table_name'], $param['column_name']))) {
                     $arrTarget[] = $param;
                 }
Index: branches/version-2_11-dev/data/class/pages/admin/system/LC_Page_Admin_System_Input.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/system/LC_Page_Admin_System_Input.php	(revision 21250)
+++ branches/version-2_11-dev/data/class/pages/admin/system/LC_Page_Admin_System_Input.php	(revision 21376)
@@ -279,11 +279,10 @@
      */
     function memberDataExists($where, $val) {
+        $objQuery =& SC_Query_Ex::getSingletonInstance();
+
         $table = 'dtb_member';
 
-        $objQuery =& SC_Query_Ex::getSingletonInstance();
-        $count = $objQuery->count($table, $where, array($val));
-
-        if ($count > 0) return true;
-        return false;
+        $exists = $objQuery->exists($table, $where, array($val));
+        return $exists;
     }
 
Index: branches/version-2_11-dev/data/class/pages/admin/design/LC_Page_Admin_Design.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/design/LC_Page_Admin_Design.php	(revision 20970)
+++ branches/version-2_11-dev/data/class/pages/admin/design/LC_Page_Admin_Design.php	(revision 21376)
@@ -274,7 +274,7 @@
             $arrParams['anywhere'] = intval($objFormParam->getValue('anywhere_' . $i));
             if ($arrParams['anywhere'] == 1) {
-                $count = $objQuery->count('dtb_blocposition', 'anywhere = 1 AND bloc_id = ? AND device_type_id = ?',
+                $exists = $objQuery->exists('dtb_blocposition', 'anywhere = 1 AND bloc_id = ? AND device_type_id = ?',
                                           array($id, $device_type_id));
-                if ($count > 0) {
+                if ($exists) {
                     continue;
                 }
Index: branches/version-2_11-dev/data/class/pages/admin/design/LC_Page_Admin_Design_MainEdit.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/design/LC_Page_Admin_Design_MainEdit.php	(revision 21185)
+++ branches/version-2_11-dev/data/class/pages/admin/design/LC_Page_Admin_Design_MainEdit.php	(revision 21376)
@@ -325,6 +325,6 @@
 
         $objQuery =& SC_Query_Ex::getSingletonInstance();
-        $count = $objQuery->count('dtb_pagelayout', $where, $arrValues);
-        if ($count > 0) {
+        $exists = $objQuery->exists('dtb_pagelayout', $where, $arrValues);
+        if ($exists) {
             $objErr->arrErr['filename'] = '※ 同じURLのデータが存在しています。別のURLを入力してください。<br />';
         }
Index: branches/version-2_11-dev/data/class/pages/admin/design/LC_Page_Admin_Design_UpDown.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/design/LC_Page_Admin_Design_UpDown.php	(revision 21185)
+++ branches/version-2_11-dev/data/class/pages/admin/design/LC_Page_Admin_Design_UpDown.php	(revision 21376)
@@ -166,6 +166,6 @@
         // DBにすでに登録されていないかチェック
         $objQuery =& SC_Query_Ex::getSingletonInstance();
-        $count = $objQuery->count("dtb_templates", "template_code = ?", array($template_code));
-        if ($count > 0) {
+        $exists = $objQuery->exists("dtb_templates", "template_code = ?", array($template_code));
+        if ($exists) {
             $arrErr['template_code'] = "※ すでに登録されているテンプレートコードです。<br/>";
         }
Index: branches/version-2_11-dev/data/class/pages/admin/ownersstore/LC_Page_Admin_OwnersStore_Settings.php
===================================================================
--- branches/version-2_11-dev/data/class/pages/admin/ownersstore/LC_Page_Admin_OwnersStore_Settings.php	(revision 20970)
+++ branches/version-2_11-dev/data/class/pages/admin/ownersstore/LC_Page_Admin_OwnersStore_Settings.php	(revision 21376)
@@ -177,7 +177,7 @@
         $table = 'dtb_ownersstore_settings';
         $objQuery = new SC_Query_Ex();
-        $count = $objQuery->count($table);
-
-        if ($count) {
+        $exists = $objQuery->exists($table);
+
+        if ($exists) {
             $objQuery->update($table, $arrSettingsData);
         } else {
Index: branches/version-2_11-dev/data/class/SC_Customer.php
===================================================================
--- branches/version-2_11-dev/data/class/SC_Customer.php	(revision 21259)
+++ branches/version-2_11-dev/data/class/SC_Customer.php	(revision 21376)
@@ -121,8 +121,7 @@
 
         // 携帯端末IDが一致し、本登録された会員を検索する。
-        $sql = 'SELECT count(*) FROM dtb_customer WHERE mobile_phone_id = ? AND del_flg = 0 AND status = 2';
-        $objQuery = new SC_Query_Ex();
-        $result = $objQuery->count("dtb_customer", "mobile_phone_id = ? AND del_flg = 0 AND status = 2", array($_SESSION['mobile']['phone_id']));
-        return $result > 0;
+        $objQuery = new SC_Query_Ex();
+        $exists = $objQuery->exists("dtb_customer", "mobile_phone_id = ? AND del_flg = 0 AND status = 2", array($_SESSION['mobile']['phone_id']));
+        return $exists;
     }
 
Index: branches/version-2_11-dev/data/class/helper/SC_Helper_PageLayout.php
===================================================================
--- branches/version-2_11-dev/data/class/helper/SC_Helper_PageLayout.php	(revision 20970)
+++ branches/version-2_11-dev/data/class/helper/SC_Helper_PageLayout.php	(revision 21376)
@@ -210,7 +210,7 @@
          * PHP ファイルは, 複数のデバイスで共有するため, device_type_id を条件に入れない
          */
-        $count = $objQuery->count('dtb_pagelayout', 'filename = ?', array($filename));
-
-        if ($count == 0) {
+        $exists = $objQuery->exists('dtb_pagelayout', 'filename = ?', array($filename));
+
+        if (!$exists) {
             // phpファイルの削除
             $del_php = HTML_REALDIR . $filename . '.php';
Index: branches/version-2_11-dev/data/class/helper/SC_Helper_Purchase.php
===================================================================
--- branches/version-2_11-dev/data/class/helper/SC_Helper_Purchase.php	(revision 21303)
+++ branches/version-2_11-dev/data/class/helper/SC_Helper_Purchase.php	(revision 21376)
@@ -833,6 +833,6 @@
         $arrValues = $objQuery->extractOnlyColsOf($table, $arrParams);
 
-        $exists = $objQuery->count($table, $where, array($order_id));
-        if ($exists > 0) {
+        $exists = $objQuery->exists($table, $where, array($order_id));
+        if ($exists) {
 
             $this->sfUpdateOrderStatus($order_id, $arrValues['status'],
Index: branches/version-2_11-dev/data/class/helper/SC_Helper_Customer.php
===================================================================
--- branches/version-2_11-dev/data/class/helper/SC_Helper_Customer.php	(revision 21221)
+++ branches/version-2_11-dev/data/class/helper/SC_Helper_Customer.php	(revision 21376)
@@ -276,10 +276,10 @@
      */
     function sfGetUniqSecretKey() {
-        $objQuery   =& SC_Query_Ex::getSingletonInstance();
-        $count      = 1;
-        while ($count != 0) {
+        $objQuery =& SC_Query_Ex::getSingletonInstance();
+
+        do {
             $uniqid = SC_Utils_Ex::sfGetUniqRandomId('r');
-            $count  = $objQuery->count("dtb_customer", "secret_key = ?", array($uniqid));
-        }
+            $exists = $objQuery->exists("dtb_customer", "secret_key = ?", array($uniqid));
+        } while ($exists);
         return $uniqid;
     }
Index: branches/version-2_11-dev/data/class/helper/SC_Helper_Session.php
===================================================================
--- branches/version-2_11-dev/data/class/helper/SC_Helper_Session.php	(revision 21194)
+++ branches/version-2_11-dev/data/class/helper/SC_Helper_Session.php	(revision 21376)
@@ -84,7 +84,8 @@
      {
          $objQuery = new SC_Query_Ex();
-         $count = $objQuery->count("dtb_session", "sess_id = ?", array($id));
+         $exists = $objQuery->exists("dtb_session", "sess_id = ?", array($id));
+var_dump($id, $exists);exit;
          $sqlval = array();
-         if($count > 0) {
+         if ($exists) {
              // レコード更新
              $sqlval['sess_data'] = $sess_data;
Index: branches/version-2_11-dev/data/class/helper/SC_Helper_DB.php
===================================================================
--- branches/version-2_11-dev/data/class/helper/SC_Helper_DB.php	(revision 21328)
+++ branches/version-2_11-dev/data/class/helper/SC_Helper_DB.php	(revision 21376)
@@ -99,6 +99,6 @@
      * @param string $where データを検索する WHERE 句
      * @param string $dsn データソース名
-     * @param string $sql データの追加を行う場合の SQL文
-     * @param bool $add データの追加も行う場合 true
+     * @param string $sql @deprecated データの追加を行う場合の SQL文
+     * @param bool $add @deprecated データの追加も行う場合 true
      * @return bool データが存在する場合 true, データの追加に成功した場合 true,
      *               $add == false で, データが存在しない場合 false
@@ -109,13 +109,8 @@
 
         $objQuery =& SC_Query_Ex::getSingletonInstance();
-        $count = $objQuery->count($table_name, $where, $arrval);
-
-        if($count > 0) {
-            $ret = true;
-        } else {
-            $ret = false;
-        }
+        $exists = $objQuery->exists($table_name, $where, $arrval);
+
         // データを追加する
-        if(!$ret && $add) {
+        if(!$exists && $add) {
             $objQuery->exec($sql);
         }
@@ -158,4 +153,5 @@
      *
      * @return int
+     * @deprecated
      */
     function sfGetBasisCount() {
@@ -163,4 +159,15 @@
 
         return $objQuery->count("dtb_baseinfo");
+    }
+
+    /**
+     * 基本情報の登録有無を取得する
+     *
+     * @return boolean 有無
+     */
+    function sfGetBasisExists() {
+        $objQuery =& SC_Query_Ex::getSingletonInstance();
+
+        return $objQuery->exists('dtb_baseinfo');
     }
 
@@ -1431,7 +1438,7 @@
         $objQuery =& SC_Query_Ex::getSingletonInstance();
         $where = 'product_id = ? AND del_flg = 0 AND class_combination_id IS NOT NULL';
-        $count = $objQuery->count('dtb_products_class', $where, array($product_id));
-
-        return $count >= 1;
+        $exists = $objQuery->exists('dtb_products_class', $where, array($product_id));
+
+        return $exists;
     }
 }
Index: branches/version-2_11-dev/data/class/helper/SC_Helper_Mobile.php
===================================================================
--- branches/version-2_11-dev/data/class/helper/SC_Helper_Mobile.php	(revision 21354)
+++ branches/version-2_11-dev/data/class/helper/SC_Helper_Mobile.php	(revision 21376)
@@ -384,7 +384,7 @@
             $arrValues['kara_mail_id'] = $objQuery->nextVal('dtb_mobile_kara_mail_kara_mail_id');
             $objQuery->insert('dtb_mobile_kara_mail', $arrValues);
-            $count = $objQuery->count('dtb_mobile_kara_mail', 'token = ?', array($token));
-
-            if ($count == 1) {
+            $exists = $objQuery->exists('dtb_mobile_kara_mail', 'token = ?', array($token));
+
+            if ($exists) {
                 break;
             }
Index: branches/version-2_11-dev/data/class/SC_Query.php
===================================================================
--- branches/version-2_11-dev/data/class/SC_Query.php	(revision 21375)
+++ branches/version-2_11-dev/data/class/SC_Query.php	(revision 21376)
@@ -131,4 +131,19 @@
 
     /**
+     * EXISTS文を実行する.
+     *
+     * @param string $table テーブル名
+     * @param string $where where句
+     * @param array $arrWhereVal プレースホルダ
+     * @return boolean 有無
+     */
+    function exists($table, $where = '', $arrWhereVal = array()) {
+        $sql_inner = $this->getSql('*', $table, $where, $arrWhereVal);
+        $sql = "SELECT CASE WHEN EXISTS($sql_inner) THEN 1 ELSE 0 END";
+        $res = $this->getOne($sql, $arrWhereVal);
+        return (bool)$res;
+    }
+
+    /**
      * SELECT文を実行する.
      *