edited scheme but still not working

backendV2/schemeV2.sql

@@ -37,14 +37,12 @@ CREATE TABLE items (
   item_name varchar(255) NOT NULL UNIQUE,
   can_borrow_role INT NOT NULL,
   in_safe bool NOT NULL DEFAULT true,
-  safe_nr CHAR(2) DEFAULT NULL,
+  safe_nr INT DEFAULT NULL UNIQUE,
   entry_created_at timestamp NULL DEFAULT CURRENT_TIMESTAMP,
   entry_updated_at timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
   last_borrowed_person varchar(255) DEFAULT NULL,
   currently_borrowing varchar(255) DEFAULT NULL,
-  PRIMARY KEY (id),
-  CHECK (safe_nr REGEXP '^[0-9]{2}$' OR safe_nr IS NULL),
-  UNIQUE KEY ux_items_safe_nr (safe_nr)
+  PRIMARY KEY (id)
 ) ENGINE=InnoDB;
 
 CREATE TABLE apiKeys (
@@ -55,4 +53,11 @@ CREATE TABLE apiKeys (
   entry_created_at TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP,
   PRIMARY KEY (id),
   CHECK (api_key REGEXP '^[0-9]{8}$')
+) ENGINE=InnoDB;
+
+CREATE TABLE doorKeys (
+	id int NOT NULL AUTO_INCREMENT,
+  door_key INT NOT NULL,
+  lockers INT NOT NULL,
+  PRIMARY KEY (id)
 ) ENGINE=InnoDB;