diff --git a/database/triggers/logon_init.sql b/database/triggers/logon_init.sql
new file mode 100644
index 0000000..093ff4f
--- /dev/null
+++ b/database/triggers/logon_init.sql
@@ -0,0 +1,21 @@
+CREATE OR REPLACE TRIGGER logon_init
+AFTER LOGON ON SCHEMA
+BEGIN
+    DBMS_SESSION.SET_NLS('NLS_LANGUAGE',            '''ENGLISH''');
+    DBMS_SESSION.SET_NLS('NLS_TERRITORY',           '''CZECH REPUBLIC''');
+    DBMS_SESSION.SET_NLS('NLS_NUMERIC_CHARACTERS',  '''. ''');
+    DBMS_SESSION.SET_NLS('NLS_DATE_FORMAT',         '''YYYY-MM-DD HH24:MI:SS''');
+    DBMS_SESSION.SET_NLS('NLS_TIME_FORMAT',         '''HH24:MI:SSXFF''');
+    DBMS_SESSION.SET_NLS('NLS_TIMESTAMP_FORMAT',    '''YYYY-MM-DD HH24:MI:SSXFF''');
+    DBMS_SESSION.SET_NLS('NLS_TIME_TZ_FORMAT',      '''HH24:MI:SSXFF TZR''');
+    DBMS_SESSION.SET_NLS('NLS_TIMESTAMP_TZ_FORMAT', '''YYYY-MM-DD HH24:MI:SSXFF TZR''');
+    DBMS_SESSION.SET_NLS('NLS_SORT',                '''BINARY_AI''');
+    DBMS_SESSION.SET_NLS('NLS_COMP',                '''LINGUISTIC''');
+    --
+
+    --ALTER SESSION SET TIME_ZONE = '+02:00';
+
+END;
+/
+
+