diff --git a/src/main/java/DB/Competition.java b/src/main/java/DB/Competition.java
index 33c606d..7fbaeff 100644
--- a/src/main/java/DB/Competition.java
+++ b/src/main/java/DB/Competition.java
@@ -142,19 +142,4 @@ public class Competition extends Table {
         }
         return list;
     }
-
-    @Override
-    public boolean save() {
-        return false;
-    }
-
-    @Override
-    public boolean update() {
-        return false;
-    }
-
-    @Override
-    public boolean delete() {
-        return false;
-    }
 }
diff --git a/src/main/java/DB/DB.java b/src/main/java/DB/DB.java
index 3340d8a..25a82bc 100644
--- a/src/main/java/DB/DB.java
+++ b/src/main/java/DB/DB.java
@@ -87,4 +87,18 @@ public class DB {
         }
         return false;
     }
+
+    static public boolean delete(String table, String check, String checkValue) {
+        try {
+            PreparedStatement ps = DB.connection.prepareStatement("DELETE FROM "+table+" WHERE "+check+" = ?");
+            ps.setString(1, checkValue);
+            int r = ps.executeUpdate();
+            ps.close();
+            if (r > 0)
+                return true;
+        } catch (SQLException e) {
+            return false;
+        }
+        return false;
+    }
 }
diff --git a/src/main/java/DB/Movie.java b/src/main/java/DB/Movie.java
index f1b83a4..ffc98d3 100644
--- a/src/main/java/DB/Movie.java
+++ b/src/main/java/DB/Movie.java
@@ -69,16 +69,6 @@ public class Movie extends Table {
         return list;
     }
 
-    @Override
-    public boolean save() {
-        return false;
-    }
-
-    @Override
-    public boolean update() {
-        return false;
-    }
-
     @Override
     public boolean delete() {
         return false;
diff --git a/src/main/java/DB/Projection.java b/src/main/java/DB/Projection.java
index 0d94513..1b89a25 100644
--- a/src/main/java/DB/Projection.java
+++ b/src/main/java/DB/Projection.java
@@ -63,16 +63,6 @@ public class Projection extends Table {
         return list;
     }
 
-    @Override
-    public boolean save() {
-        return false;
-    }
-
-    @Override
-    public boolean update() {
-        return false;
-    }
-
     @Override
     public boolean delete() {
         return false;
diff --git a/src/main/java/DB/Room.java b/src/main/java/DB/Room.java
index 602fc93..c9d5df4 100644
--- a/src/main/java/DB/Room.java
+++ b/src/main/java/DB/Room.java
@@ -65,19 +65,4 @@ public class Room extends Table {
         }
         return list;
     }
-
-    @Override
-    public boolean save() {
-        return false;
-    }
-
-    @Override
-    public boolean update() {
-        return false;
-    }
-
-    @Override
-    public boolean delete() {
-        return false;
-    }
 }
diff --git a/src/main/java/DB/Slot.java b/src/main/java/DB/Slot.java
index 16c2926..9574295 100644
--- a/src/main/java/DB/Slot.java
+++ b/src/main/java/DB/Slot.java
@@ -46,19 +46,4 @@ public class Slot extends Table {
         }
         return list;
     }
-
-    @Override
-    public boolean save() {
-        return false;
-    }
-
-    @Override
-    public boolean update() {
-        return false;
-    }
-
-    @Override
-    public boolean delete() {
-        return false;
-    }
 }
diff --git a/src/main/java/DB/Table.java b/src/main/java/DB/Table.java
index 0de08bd..9a159ca 100644
--- a/src/main/java/DB/Table.java
+++ b/src/main/java/DB/Table.java
@@ -5,9 +5,6 @@ public abstract class Table {
     static protected String tableName;
     static protected String check;
     protected String checkValue;
-    abstract public boolean save();
-    abstract public boolean update();
-    abstract public boolean delete();
 
     protected <T> T get(Class<T> cl, String value) {
         return DB.get(cl, tableName, value, check, checkValue);
@@ -16,4 +13,8 @@ public abstract class Table {
     protected boolean set(String value, String newValue) {
         return DB.set(tableName, value, newValue, check, checkValue);
     }
+
+    public boolean delete() {
+        return DB.delete(tableName, check, checkValue);
+    }
 }
diff --git a/src/main/java/DB/User.java b/src/main/java/DB/User.java
index 6282de9..c6c1cb0 100644
--- a/src/main/java/DB/User.java
+++ b/src/main/java/DB/User.java
@@ -81,19 +81,4 @@ public class User extends Table {
         }
         return list;
     }
-
-    @Override
-    public boolean save() {
-        return false;
-    }
-
-    @Override
-    public boolean update() {
-        return false;
-    }
-
-    @Override
-    public boolean delete() {
-        return false;
-    }
 }
diff --git a/src/main/java/DB/UserType.java b/src/main/java/DB/UserType.java
index 3c55ac3..d2dbb89 100644
--- a/src/main/java/DB/UserType.java
+++ b/src/main/java/DB/UserType.java
@@ -43,19 +43,4 @@ public class UserType extends Table {
         }
         return list;
     }
-
-    @Override
-    public boolean save() {
-        return false;
-    }
-
-    @Override
-    public boolean update() {
-        return false;
-    }
-
-    @Override
-    public boolean delete() {
-        return false;
-    }
 }
diff --git a/src/main/java/ProjectionPlanning/Main.java b/src/main/java/ProjectionPlanning/Main.java
index b77eb4e..237f2a3 100644
--- a/src/main/java/ProjectionPlanning/Main.java
+++ b/src/main/java/ProjectionPlanning/Main.java
@@ -7,8 +7,6 @@ public class Main {
     public static void main(String[] args) {
         //new GUI();
         DB.connect();
-        Competition u = new Competition("Court Métrage");
-        System.out.println(Competition.getAll());
-        System.out.println(u.getUsers());
+        System.out.println(new User("test@test.com").delete());
     }
 }