diff --git a/misc/clear_data.sql b/misc/clear_data.sql
index a85595c..9642d64 100644
--- a/misc/clear_data.sql
+++ b/misc/clear_data.sql
@@ -1,11 +1,37 @@
-use bremen_calling_test;
+-- This script clears all data from the database tables related to the port management system.
 
 DELETE FROM notification WHERE id > 0;
 
 DELETE FROM history WHERE id > 0;
 
+DELETE FROM notification WHERE id > 0;
+
 DELETE FROM shipcall_participant_map WHERE id > 0;
 
+DELETE FROM participant_port_map WHERE id > 0;
+
+DELETE FROM shipcall_tug_map WHERE id > 0;
+
 DELETE FROM times WHERE id > 0;
 
-DELETE FROM shipcall WHERE id > 0;
\ No newline at end of file
+DELETE FROM shipcall WHERE id > 0;
+
+DELETE FROM user_role_map WHERE id > 0;
+
+DELETE FROM role_securable_map WHERE id > 0;
+
+DELETE FROM user_role_map WHERE id > 0;
+
+DELETE FROM securable WHERE id > 0;
+
+DELETE FROM role WHERE id > 0;
+
+DELETE FROM user WHERE id > 0;
+
+delete FROM ship WHERE id > 0;
+
+DELETE FROM berth WHERE id > 0;
+
+DELETE FROM participant WHERE id > 0;
+
+DELETE FROM port WHERE id > 0;
\ No newline at end of file