diff --git a/lib/classes/eventsmanager/broker.php b/lib/classes/eventsmanager/broker.php
index 24d787d65c..8b96f46faa 100644
--- a/lib/classes/eventsmanager/broker.php
+++ b/lib/classes/eventsmanager/broker.php
@@ -11,6 +11,7 @@
 
 use Alchemy\Phrasea\Application;
 use Alchemy\Phrasea\Model\Entities\User;
+use Doctrine\DBAL\Connection;
 
 class eventsmanager_broker
 {
@@ -260,12 +261,21 @@ class eventsmanager_broker
             return false;
         }
 
-        $sql = 'UPDATE notifications SET unread="0"
-            WHERE usr_id = :usr_id
-              AND (id="' . implode('" OR id="', $notifications) . '")';
+        $sql = 'UPDATE notifications SET unread="0" WHERE usr_id = :usr_id AND (id IN (:notifications))';
 
-        $stmt = $this->app['phraseanet.appbox']->get_connection()->prepare($sql);
-        $stmt->execute([':usr_id' => $usr_id]);
+        /** @var Connection $connection */
+        $connection = $this->app['phraseanet.appbox']->get_connection();
+        $stmt = $connection->prepare($sql);
+        $stmt->execute(
+            [
+                'usr_id' => $usr_id,
+                'notifications' => $notifications,
+            ],
+            [
+                'usr_id' => PDO::PARAM_INT,
+                'notifications' => Connection::PARAM_INT_ARRAY,
+            ]
+        );
         $stmt->closeCursor();
 
         return $this;
diff --git a/lib/classes/module/console/fieldsMerge.php b/lib/classes/module/console/fieldsMerge.php
index 6c7e0b540c..438a78f7de 100644
--- a/lib/classes/module/console/fieldsMerge.php
+++ b/lib/classes/module/console/fieldsMerge.php
@@ -44,6 +44,7 @@ class module_console_fieldsMerge extends Command
         $output->writeln("");
 
         try {
+            /** @var databox $databox */
             $databox = $this->getService('phraseanet.appbox')->get_databox((int) $input->getArgument('sbas_id'));
         } catch (\Exception $e) {
             $output->writeln("<error>Invalid databox id </error>");
@@ -155,11 +156,16 @@ class module_console_fieldsMerge extends Command
         $start = 0;
         $quantity = 100;
 
+        $builder = $databox->get_connection()->createQueryBuilder();
+        $builder
+            ->select('r.record_id')
+            ->from('record', 'r')
+            ->orderBy('r.record_id', 'ASC')
+            ->setFirstResult($start)
+            ->setMaxResults($quantity)
+        ;
         do {
-            $sql = 'SELECT record_id FROM record
-                  ORDER BY record_id LIMIT ' . $start . ', ' . $quantity;
-            $stmt = $databox->get_connection()->prepare($sql);
-            $stmt->execute();
+            $stmt = $builder->execute();
             $results = $stmt->fetchAll(PDO::FETCH_ASSOC);
             $stmt->closeCursor();
 
diff --git a/lib/classes/module/console/fieldsRename.php b/lib/classes/module/console/fieldsRename.php
index 30f8fb76eb..6dbf7f931b 100644
--- a/lib/classes/module/console/fieldsRename.php
+++ b/lib/classes/module/console/fieldsRename.php
@@ -35,6 +35,7 @@ class module_console_fieldsRename extends Command
         $new_name = $input->getArgument('name');
 
         try {
+            /** @var databox $databox */
             $databox = $this->getService('phraseanet.appbox')->get_databox((int) $input->getArgument('sbas_id'));
         } catch (\Exception $e) {
             $output->writeln("<error>Invalid databox id </error>");
@@ -84,13 +85,18 @@ class module_console_fieldsRename extends Command
         $start = 0;
         $quantity = 100;
 
+        $builder = $databox->get_connection()->createQueryBuilder();
+        $builder
+            ->select('r.record_id')
+            ->from('record', 'r')
+            ->orderBy('r.record_id', 'ASC')
+            ->setFirstResult($start)
+            ->setMaxResults($quantity)
+        ;
         do {
             $output->write("\rUpdating records... <info>".min($start, $total)." / $total</info>");
 
-            $sql = 'SELECT record_id FROM record
-                  ORDER BY record_id LIMIT ' . $start . ', ' . $quantity;
-            $stmt = $databox->get_connection()->prepare($sql);
-            $stmt->execute();
+            $stmt = $builder->execute();
             $results = $stmt->fetchAll(PDO::FETCH_ASSOC);
             $stmt->closeCursor();
 
diff --git a/lib/classes/module/console/systemExport.php b/lib/classes/module/console/systemExport.php
index 68946ccdde..bc109ebbba 100644
--- a/lib/classes/module/console/systemExport.php
+++ b/lib/classes/module/console/systemExport.php
@@ -11,6 +11,7 @@
 
 use Alchemy\Phrasea\Command\Command;
 use Alchemy\Phrasea\Model\Serializer\CaptionSerializer;
+use Doctrine\DBAL\Connection;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
@@ -120,6 +121,7 @@ class module_console_systemExport extends Command
 
         $total = $errors = 0;
 
+        /** @var databox $databox */
         foreach ($this->getService('phraseanet.appbox')->get_databoxes() as $databox) {
             $output->writeln(sprintf("Processing <info>%s</info>", $databox->get_label($this->container['locale'])));
 
@@ -153,20 +155,27 @@ class module_console_systemExport extends Command
 
             $this->getService('filesystem')->mkdir($local_export);
 
-            $sql = 'SELECT record_id FROM record WHERE parent_record_id = 0 ';
+            $builder = $databox->get_connection()->createQueryBuilder();
+            $builder
+                ->select('r.record_id')
+                ->from('record', 'r')
+                ->where($builder->expr()->eq('r.parent_record_id', $builder->expr()->literal(0)))
+            ;
 
             if (count($coll_ids) > 0) {
-                $sql .= ' AND coll_id IN (' . implode(', ', $coll_ids) . ') ';
+                $builder
+                    ->andWhere($builder->expr()->in('r.coll_id', [':collIds']))
+                    ->setParameter('collIds', $coll_ids, Connection::PARAM_INT_ARRAY)
+                ;
             }
 
-            $sql .= ' ORDER BY record_id ASC ';
+            $builder->orderBy('r.record_id', 'ASC');
 
             if ($limit) {
-                $sql .= ' LIMIT 0, ' . $limit;
+                $builder->setMaxResults($limit);
             }
 
-            $stmt = $databox->get_connection()->prepare($sql);
-            $stmt->execute();
+            $stmt = $builder->execute();
             $rs = $stmt->fetchAll(PDO::FETCH_ASSOC);
             $stmt->closeCursor();
 
diff --git a/lib/classes/module/report/activity.php b/lib/classes/module/report/activity.php
index 022279366f..53aa7aec6f 100644
--- a/lib/classes/module/report/activity.php
+++ b/lib/classes/module/report/activity.php
@@ -106,8 +106,6 @@ class module_report_activity extends module_report
                 WHERE (" . $filter['sql'] . ") AND !ISNULL(usrid)
             GROUP BY heures;";
 
-// no_file_put_contents("/tmp/report.txt", sprintf("%s (%s)\n%s\n\n", __FILE__, __LINE__, $sql), FILE_APPEND);
-
         $stmt = $sqlBuilder->getConnBas()->prepare($sql);
         $stmt->execute($params);
         $rs = $stmt->fetchAll(PDO::FETCH_ASSOC);