diff --git a/include/database/currency_history_sql.class.php b/include/database/currency_history_sql.class.php
new file mode 100644
index 000000000..e1935324f
--- /dev/null
+++ b/include/database/currency_history_sql.class.php
@@ -0,0 +1,65 @@
+<?php
+
+/*
+ *   This file is part of NOALYSS.
+ *
+ *   PhpCompta is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   PhpCompta is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with PhpCompta; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+// Copyright (2018) Author Dany De Bontridder <dany@alchimerys.be>
+
+require_once NOALYSS_INCLUDE.'/lib/noalyss_sql.class.php';
+require_once NOALYSS_INCLUDE.'/lib/database.class.php';
+
+/**
+ * class_currency_history_sql.php
+ *
+ * @file
+ * @brief abstract of the table public.currency_history */
+class Currency_history_SQL extends Noalyss_SQL
+{
+
+    function __construct(Database $p_cn, $p_id=-1)
+    {
+        $this->table="public.currency_history";
+        $this->primary_key="id";
+        /*
+         * List of columns
+         */
+        $this->name=array(
+            "id"=>"id"
+            , "ch_value"=>"ch_value"
+            , "ch_from"=>"ch_from"
+            , "currency_id"=>"currency_id"
+        );
+        /*
+         * Type of columns
+         */
+        $this->type=array(
+            "id"=>"numeric"
+            , "ch_value"=>"numeric"
+            , "ch_from"=>"timestamp without time zone"
+            , "currency_id"=>"numeric"
+        );
+
+
+        $this->default=array(
+            "id"=>"auto"
+        );
+
+        $this->date_format="DD.MM.YYYY";
+        parent::__construct($p_cn, $p_id);
+    }
+
+}
diff --git a/include/database/currency_sql.class.php b/include/database/currency_sql.class.php
new file mode 100644
index 000000000..0d00e0b8f
--- /dev/null
+++ b/include/database/currency_sql.class.php
@@ -0,0 +1,61 @@
+<?php
+
+/*
+ *   This file is part of NOALYSS.
+ *
+ *   PhpCompta is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   PhpCompta is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with PhpCompta; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+// Copyright (2018) Author Dany De Bontridder <dany@alchimerys.be>
+
+require_once NOALYSS_INCLUDE.'/lib/noalyss_sql.class.php';
+require_once NOALYSS_INCLUDE.'/lib/database.class.php';
+
+/**
+ * class_currency_sql.php
+ *
+ * @file
+ * @brief abstract of the table public.currency */
+class Currency_SQL extends Noalyss_SQL
+{
+
+    function __construct(Database $p_cn, $p_id=-1)
+    {
+        $this->table="public.currency";
+        $this->primary_key="id";
+        /*
+         * List of columns
+         */
+        $this->name=array(
+            "id"=>"id"
+            , "cr_code_iso"=>"cr_code_iso"
+        );
+        /*
+         * Type of columns
+         */
+        $this->type=array(
+            "id"=>"numeric"
+            , "cr_code_iso"=>"text"
+        );
+
+
+        $this->default=array(
+            "id"=>"auto"
+        );
+
+        $this->date_format="DD.MM.YYYY";
+        parent::__construct($p_cn, $p_id);
+    }
+
+}