diff --git a/Data/SqliteClientRepository.cs b/Data/SqliteClientRepository.cs
index 2aab76a..527eb00 100644
--- a/Data/SqliteClientRepository.cs
+++ b/Data/SqliteClientRepository.cs
@@ -3,6 +3,7 @@ using System.Threading.Tasks;
 using Microsoft.Data.Sqlite;
 using Microsoft.Extensions.Configuration;
 using Workshop8.Models;
+using System;
 
 namespace Workshop8.Data
 {
@@ -20,23 +21,76 @@ namespace Workshop8.Data
 
         public async Task<IEnumerable<Cliente>> GetAllClientsAsync()
         {
-            // TODO: implementar SELECT
-            return new List<Cliente>();
+            var clients = new List<Cliente>();
+
+            using var connection = new SqliteConnection(_connectionString);
+            await connection.OpenAsync();
+
+            var command = connection.CreateCommand();
+            command.CommandText = "SELECT Id, Nome, Email, CriadoEm FROM Clientes";
+
+            using var reader = await command.ExecuteReaderAsync();
+            while (await reader.ReadAsync())
+            {
+                clients.Add(new Cliente
+                {
+                    Id = reader.GetInt32(0),
+                    Nome = reader.GetString(1),
+                    Email = reader.GetString(2),
+                    CriadoEm = reader.GetDateTime(3)
+                });
+            }
+
+            return clients;
         }
 
         public async Task AddClientAsync(Cliente c)
         {
-            // TODO: implementar INSERT
+            using var connection = new SqliteConnection(_connectionString);
+            await connection.OpenAsync();
+
+            var command = connection.CreateCommand();
+            command.CommandText = @"
+                INSERT INTO Clientes (Nome, Email, CriadoEm) 
+                VALUES ($nome, $email, $criadoEm);
+            ";
+
+            command.Parameters.AddWithValue("$nome", c.Nome);
+            command.Parameters.AddWithValue("$email", c.Email);
+            command.Parameters.AddWithValue("$criadoEm", c.CriadoEm);
+
+            await command.ExecuteNonQueryAsync();
         }
 
         public async Task UpdateClientAsync(Cliente c)
         {
-            // TODO: implementar UPDATE
+            using var connection = new SqliteConnection(_connectionString);
+            await connection.OpenAsync();
+
+            var command = connection.CreateCommand();
+            command.CommandText = @"
+                UPDATE Clientes 
+                SET Nome = $nome, Email = $email
+                WHERE Id = $id;
+            ";
+
+            command.Parameters.AddWithValue("$nome", c.Nome);
+            command.Parameters.AddWithValue("$email", c.Email);
+            command.Parameters.AddWithValue("$id", c.Id);
+
+            await command.ExecuteNonQueryAsync();
         }
 
         public async Task DeleteClientAsync(int id)
         {
-            // TODO: implementar DELETE
+            using var connection = new SqliteConnection(_connectionString);
+            await connection.OpenAsync();
+
+            var command = connection.CreateCommand();
+            command.CommandText = "DELETE FROM Clientes WHERE Id = $id;";
+            command.Parameters.AddWithValue("$id", id);
+
+            await command.ExecuteNonQueryAsync();
         }
     }
 }