diff --git a/SUBD_Car_rent/database/ImplementationPostgres.cs b/SUBD_Car_rent/database/ImplementationPostgres.cs
index 5515d6c..292a4f8 100644
--- a/SUBD_Car_rent/database/ImplementationPostgres.cs
+++ b/SUBD_Car_rent/database/ImplementationPostgres.cs
@@ -499,92 +499,39 @@ namespace database
             cmd.ExecuteNonQuery();
         }
 
+        private Sequence GetSequence(string nameInPg, string nameInApp)
+        {
+			using var conn = GetConnection();
+			conn.Open();
+            using var cmd = new NpgsqlCommand("SELECT sequencename, last_value " +
+                "FROM pg_sequences " +
+                "WHERE sequencename = '" + nameInPg + "_id_seq'", conn);
+			using var reader = cmd.ExecuteReader();
+            if (reader.Read())
+            {
+                return new Sequence
+                {
+                    Id = nameInApp,
+                    Count = reader.GetInt32(1)
+                };
+            }
+            else
+                return new Sequence
+                {
+                    Id = nameInApp,
+                    Count = 0
+                };
+		}
+
         public List<Sequence> GetSequences()
         {
-			List < Sequence > sequences = new List<Sequence>();
-
-            {
-                using var conn = GetConnection();
-                conn.Open();
-                using var cmd = new NpgsqlCommand("SELECT sequencename, last_value " +
-                    "FROM pg_sequences " +
-                    "WHERE sequencename = 'client_id_seq'", conn);
-                using var reader = cmd.ExecuteReader();
-                if (reader.Read())
-                {
-                    sequences.Add(new Sequence
-                    {
-                        Id = "client",
-                        Count = reader.GetInt32(1)
-                    });
-                }
-			}
-			{
-				using var conn = GetConnection();
-				conn.Open();
-				using var cmd = new NpgsqlCommand("SELECT sequencename, last_value " +
-					"FROM pg_sequences " +
-					"WHERE sequencename = 'branch_id_seq'", conn);
-				using var reader = cmd.ExecuteReader();
-				if (reader.Read())
-				{
-					sequences.Add(new Sequence
-					{
-						Id = "branch",
-						Count = reader.GetInt32(1)
-					});
-				}
-			}
-			{
-				using var conn = GetConnection();
-				conn.Open();
-				using var cmd = new NpgsqlCommand("SELECT sequencename, last_value " +
-					"FROM pg_sequences " +
-					"WHERE sequencename = 'carmodel_id_seq'", conn);
-				using var reader = cmd.ExecuteReader();
-				if (reader.Read())
-				{
-					sequences.Add(new Sequence
-					{
-						Id = "car_model",
-						Count = reader.GetInt32(1)
-					});
-				}
-			}
-			{
-				using var conn = GetConnection();
-				conn.Open();
-				using var cmd = new NpgsqlCommand("SELECT sequencename, last_value " +
-					"FROM pg_sequences " +
-					"WHERE sequencename = 'car_id_seq'", conn);
-				using var reader = cmd.ExecuteReader();
-				if (reader.Read())
-				{
-					sequences.Add(new Sequence
-					{
-						Id = "car",
-						Count = reader.GetInt32(1)
-					});
-				}
-			}
-			{
-				using var conn = GetConnection();
-				conn.Open();
-				using var cmd = new NpgsqlCommand("SELECT sequencename, last_value " +
-					"FROM pg_sequences " +
-					"WHERE sequencename = 'rental_id_seq'", conn);
-				using var reader = cmd.ExecuteReader();
-				if (reader.Read())
-				{
-					sequences.Add(new Sequence
-					{
-						Id = "rental",
-						Count = reader.GetInt32(1)
-					});
-				}
-			}
-
-			return sequences;
+            return new List<Sequence>{
+                GetSequence("client", "client"),
+                GetSequence("branch", "branch"),
+                GetSequence("carmodel", "car_model"),
+                GetSequence("car", "car"),
+                GetSequence("rental", "rental")
+            };
 		}
     }
 }