diff --git a/backend/migrations/cleanup.sql b/backend/migrations/cleanup.sql
new file mode 100644
index 0000000..a3c99ca
--- /dev/null
+++ b/backend/migrations/cleanup.sql
@@ -0,0 +1,21 @@
+-- Создаем временную таблицу для уникальных адресов
+CREATE TEMP TABLE unique_users AS
+SELECT DISTINCT ON (LOWER(address)) 
+  id,
+  LOWER(address) as address,
+  created_at
+FROM users
+ORDER BY LOWER(address), created_at ASC;
+
+-- Удаляем все записи из users
+TRUNCATE users CASCADE;
+
+-- Восстанавливаем уникальные записи
+INSERT INTO users (id, address, created_at)
+SELECT id, address, created_at FROM unique_users;
+
+-- Обновляем последовательность id
+SELECT setval('users_id_seq', (SELECT MAX(id) FROM users));
+
+-- Удаляем временную таблицу
+DROP TABLE unique_users; 
\ No newline at end of file
diff --git a/backend/migrations/init.sql b/backend/migrations/init.sql
index 074876a..9341fb4 100644
--- a/backend/migrations/init.sql
+++ b/backend/migrations/init.sql
@@ -29,4 +29,12 @@ CREATE TABLE IF NOT EXISTS chat_history (
 
 -- Даем права пользователю
 GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO postgres;
-GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO postgres; 
\ No newline at end of file
+GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO postgres;
+
+-- Обновляем существующие адреса
+UPDATE users SET address = LOWER(address);
+
+-- Удаляем дубликаты
+DELETE FROM users a USING users b
+WHERE a.id > b.id 
+AND LOWER(a.address) = LOWER(b.address); 
\ No newline at end of file
diff --git a/backend/routes/api.js b/backend/routes/api.js
index 28fbf72..4a25f35 100644
--- a/backend/routes/api.js
+++ b/backend/routes/api.js
@@ -130,7 +130,7 @@ router.post('/chat', requireAuth, async (req, res) => {
 
     // Получаем или создаем пользователя
     let user = await pool.query(
-      'INSERT INTO users (address) VALUES ($1) ON CONFLICT (address) DO UPDATE SET address = EXCLUDED.address RETURNING id',
+      'INSERT INTO users (address) VALUES (LOWER($1)) ON CONFLICT (address) DO UPDATE SET address = LOWER($1) RETURNING id',
       [userAddress]
     );
     const userId = user.rows[0].id;
@@ -166,34 +166,36 @@ router.post('/chat', requireAuth, async (req, res) => {
 router.get('/chat/history', requireAuth, async (req, res) => {
   try {
     const userAddress = req.session.siwe.address;
+    console.log('Запрос истории чата для:', userAddress);
     
     // Получаем ID пользователя
     const userResult = await pool.query(
-      'SELECT id FROM users WHERE address = $1',
+      'SELECT id FROM users WHERE LOWER(address) = LOWER($1) ORDER BY created_at ASC LIMIT 1',
       [userAddress]
     );
+    console.log('Найден пользователь:', userResult.rows);
+
+    if (userResult.rows.length === 0) {
+      return res.status(404).json({ error: 'User not found' });
+    }
+
     const userId = userResult.rows[0].id;
 
     // Получаем историю чата
     const history = await pool.query(
-      `SELECT * FROM (
-        SELECT 
-          message as content,
-          created_at,
-          'user' as role
-        FROM chat_history 
-        WHERE user_id = $1
-        UNION ALL
-        SELECT 
-          response as content,
-          created_at,
-          'assistant' as role
-        FROM chat_history 
-        WHERE user_id = $1
-      ) messages
-      ORDER BY created_at ASC`,
+      `SELECT 
+        ch.id,
+        LOWER(u.address) as address,
+        ch.message,
+        ch.response,
+        ch.created_at
+      FROM chat_history ch
+      JOIN users u ON ch.user_id = u.id
+      WHERE ch.user_id = $1
+      ORDER BY created_at DESC`,
       [userId]
     );
+    console.log('История чата:', history.rows);
 
     res.json({ 
       history: history.rows 
@@ -204,4 +206,19 @@ router.get('/chat/history', requireAuth, async (req, res) => {
   }
 });
 
+// Получение списка пользователей
+router.get('/users', requireAuth, async (req, res) => {
+  try {
+    console.log('Запрос списка пользователей');
+    const users = await pool.query(
+      'SELECT id, LOWER(address) as address, created_at FROM users ORDER BY created_at DESC'
+    );
+    console.log('Найдено пользователей:', users.rows);
+    res.json({ users: users.rows });
+  } catch (error) {
+    console.error('Ошибка получения пользователей:', error);
+    res.status(500).json({ error: 'Ошибка сервера' });
+  }
+});
+
 module.exports = router; 
\ No newline at end of file
diff --git a/backend/sessions/MQ7gY14YfnCv8X0bQKUNjZjITzdTWz58.json b/backend/sessions/MQ7gY14YfnCv8X0bQKUNjZjITzdTWz58.json
index e01e81f..2777518 100644
--- a/backend/sessions/MQ7gY14YfnCv8X0bQKUNjZjITzdTWz58.json
+++ b/backend/sessions/MQ7gY14YfnCv8X0bQKUNjZjITzdTWz58.json
@@ -1 +1 @@
-{"cookie":{"originalMaxAge":2591999999,"expires":"2025-03-23T14:05:28.613Z","secure":false,"httpOnly":true,"domain":"127.0.0.1","path":"/","sameSite":"lax"},"nonce":null,"__lastAccess":1740146728614,"siwe":{"domain":"127.0.0.1:5173","address":"0xF45aa4917b3775bA37f48Aeb3dc1a943561e9e0B","statement":"Sign in with Ethereum to access DApp features and AI Assistant","uri":"http://127.0.0.1:5173","version":"1","nonce":"KF6YuwJBLPv8vFKCK","issuedAt":"2025-02-21T14:05:01.684Z","chainId":11155111,"resources":["http://127.0.0.1:5173/api/chat","http://127.0.0.1:5173/api/contract"]},"authenticated":true}
\ No newline at end of file
+{"cookie":{"originalMaxAge":2591999999,"expires":"2025-03-23T16:06:19.831Z","secure":false,"httpOnly":true,"domain":"127.0.0.1","path":"/","sameSite":"lax"},"nonce":null,"__lastAccess":1740153979832,"siwe":{"domain":"127.0.0.1:5173","address":"0xF45aa4917b3775bA37f48Aeb3dc1a943561e9e0B","statement":"Sign in with Ethereum to access DApp features and AI Assistant","uri":"http://127.0.0.1:5173","version":"1","nonce":"u7P3wT2kyPmGb4Z0I","issuedAt":"2025-02-21T16:05:49.561Z","chainId":11155111,"resources":["http://127.0.0.1:5173/api/chat","http://127.0.0.1:5173/api/contract"]},"authenticated":true}
\ No newline at end of file
diff --git a/backend/sessions/OgJhv73wKRJ4xuAAUBa9k5CtZ9E4dcFJ.json b/backend/sessions/OgJhv73wKRJ4xuAAUBa9k5CtZ9E4dcFJ.json
new file mode 100644
index 0000000..b710c12
--- /dev/null
+++ b/backend/sessions/OgJhv73wKRJ4xuAAUBa9k5CtZ9E4dcFJ.json
@@ -0,0 +1 @@
+{"cookie":{"originalMaxAge":2592000000,"expires":"2025-03-23T14:54:20.531Z","secure":false,"httpOnly":true,"domain":"127.0.0.1","path":"/","sameSite":"lax"},"__lastAccess":1740149660531}
\ No newline at end of file
diff --git a/backend/sessions/P6j78qGOxf6uv3j-AGfgu0la3luxKbaV.json b/backend/sessions/P6j78qGOxf6uv3j-AGfgu0la3luxKbaV.json
new file mode 100644
index 0000000..519ec36
--- /dev/null
+++ b/backend/sessions/P6j78qGOxf6uv3j-AGfgu0la3luxKbaV.json
@@ -0,0 +1 @@
+{"cookie":{"originalMaxAge":2592000000,"expires":"2025-03-23T14:53:08.151Z","secure":false,"httpOnly":true,"domain":"127.0.0.1","path":"/","sameSite":"lax"},"__lastAccess":1740149588151}
\ No newline at end of file
diff --git a/backend/sessions/VO2T1gK1S6E0sq7-yYtjHx6p3nsixeGv.json b/backend/sessions/VO2T1gK1S6E0sq7-yYtjHx6p3nsixeGv.json
new file mode 100644
index 0000000..ba2a55a
--- /dev/null
+++ b/backend/sessions/VO2T1gK1S6E0sq7-yYtjHx6p3nsixeGv.json
@@ -0,0 +1 @@
+{"cookie":{"originalMaxAge":2592000000,"expires":"2025-03-23T14:36:28.622Z","secure":false,"httpOnly":true,"domain":"127.0.0.1","path":"/","sameSite":"lax"},"__lastAccess":1740148588623}
\ No newline at end of file
diff --git a/backend/sessions/jK4QzdazTk9W_ubXZTLnIEwgGD2xcwmE.json b/backend/sessions/jK4QzdazTk9W_ubXZTLnIEwgGD2xcwmE.json
new file mode 100644
index 0000000..6c28ad7
--- /dev/null
+++ b/backend/sessions/jK4QzdazTk9W_ubXZTLnIEwgGD2xcwmE.json
@@ -0,0 +1 @@
+{"cookie":{"originalMaxAge":2592000000,"expires":"2025-03-23T14:49:54.299Z","secure":false,"httpOnly":true,"domain":"127.0.0.1","path":"/","sameSite":"lax"},"__lastAccess":1740149394299}
\ No newline at end of file
diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index e91305b..7123ab3 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -5,8 +5,14 @@
     <AIAssistant 
       :isConnected="isConnected"
       :userAddress="userAddress"
+      @chatUpdated="handleChatUpdate"
     />
     <ServerControl />
+    <DataTables 
+      :isConnected="isConnected" 
+      :userAddress="userAddress"
+      ref="dataTables"
+    />
   </div>
 </template>
 
@@ -15,10 +21,12 @@ import { ref, watch } from 'vue'
 import ContractInteraction from './components/ContractInteraction.vue'
 import AIAssistant from './components/AIAssistant.vue'
 import ServerControl from './components/ServerControl.vue'
+import DataTables from './components/DataTables.vue'
 
 const contractInteraction = ref(null)
 const isConnected = ref(false)
 const userAddress = ref(null)
+const dataTables = ref(null)
 
 watch(() => contractInteraction.value?.isConnected, (newValue) => {
   isConnected.value = newValue
@@ -27,6 +35,10 @@ watch(() => contractInteraction.value?.isConnected, (newValue) => {
 watch(() => contractInteraction.value?.address, (newValue) => {
   userAddress.value = newValue
 })
+
+function handleChatUpdate() {
+  dataTables.value?.fetchData()
+}
 </script>
 
 <style>
diff --git a/frontend/src/components/AIAssistant.vue b/frontend/src/components/AIAssistant.vue
index 2251988..a98cd99 100644
--- a/frontend/src/components/AIAssistant.vue
+++ b/frontend/src/components/AIAssistant.vue
@@ -35,6 +35,8 @@ const props = defineProps({
   userAddress: String
 })
 
+const emit = defineEmits(['chatUpdated'])
+
 const userInput = ref('')
 const messages = ref([])
 const isLoading = ref(false)
@@ -129,6 +131,7 @@ async function sendMessage() {
     messages.value.push({ role: 'user', content: userInput.value })
     messages.value.push({ role: 'assistant', content: data.response })
     userInput.value = ''
+    emit('chatUpdated')
   } catch (error) {
     console.error('Ошибка при отправке сообщения:', error)
     messages.value.push({ 
diff --git a/frontend/src/components/DataTables.vue b/frontend/src/components/DataTables.vue
new file mode 100644
index 0000000..f354fa7
--- /dev/null
+++ b/frontend/src/components/DataTables.vue
@@ -0,0 +1,163 @@
+<template>
+  <div class="data-tables" v-if="isConnected">
+    <h3>Данные из базы</h3>
+    
+    <!-- История чатов -->
+    <div class="table-section">
+      <h4>История чатов</h4>
+      <table>
+        <thead>
+          <tr>
+            <th>Адрес</th>
+            <th>Сообщение</th>
+            <th>Ответ</th>
+            <th>Дата</th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr v-for="chat in chatHistory" :key="chat.id">
+            <td>{{ shortenAddress(chat.address) }}</td>
+            <td>{{ chat.message }}</td>
+            <td>{{ chat.response }}</td>
+            <td>{{ formatDate(chat.created_at) }}</td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+
+    <!-- Пользователи -->
+    <div class="table-section">
+      <h4>Пользователи</h4>
+      <table>
+        <thead>
+          <tr>
+            <th>ID</th>
+            <th>Адрес</th>
+            <th>Дата регистрации</th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr v-for="user in users" :key="user.id">
+            <td>{{ user.id }}</td>
+            <td>{{ shortenAddress(user.address) }}</td>
+            <td>{{ formatDate(user.created_at) }}</td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref, onMounted, watch } from 'vue';
+
+const props = defineProps({
+  isConnected: Boolean,
+  userAddress: String
+});
+
+const chatHistory = ref([]);
+const users = ref([]);
+
+// Нормализация адреса (приведение к нижнему регистру)
+function normalizeAddress(address) {
+  return address?.toLowerCase() || '';
+}
+
+// Следим за изменением состояния подключения
+watch(() => props.isConnected, (newValue) => {
+  console.log('isConnected изменился:', newValue);
+  if (newValue) {
+    fetchData();
+  }
+});
+
+// Следим за изменением адреса
+watch(() => props.userAddress, (newValue) => {
+  console.log('userAddress изменился:', newValue);
+  if (props.isConnected && newValue) {
+    fetchData();
+  }
+});
+
+// Получение данных
+async function fetchData() {
+  try {
+    console.log('Запрос обновления данных');
+    // История чатов
+    const chatResponse = await fetch('http://127.0.0.1:3000/api/chat/history', {
+      credentials: 'include'
+    });
+    const chatData = await chatResponse.json();
+    console.log('Получена история чата:', chatData);
+    chatHistory.value = chatData.history.map(chat => ({
+      ...chat,
+      address: normalizeAddress(chat.address)
+    }));
+
+    // Пользователи
+    const usersResponse = await fetch('http://127.0.0.1:3000/api/users', {
+      credentials: 'include'
+    });
+    const usersData = await usersResponse.json();
+    console.log('Получен список пользователей:', usersData);
+    users.value = usersData.users.map(user => ({
+      ...user,
+      address: normalizeAddress(user.address)
+    }));
+  } catch (error) {
+    console.error('Ошибка получения данных:', error);
+  }
+}
+
+// Форматирование адреса
+function shortenAddress(address) {
+  return `${address.slice(0, 6)}...${address.slice(-4)}`;
+}
+
+// Форматирование даты
+function formatDate(date) {
+  return new Date(date).toLocaleString();
+}
+
+onMounted(() => {
+  if (props.isConnected) {
+    fetchData();
+  }
+});
+
+// Делаем метод доступным извне
+defineExpose({
+  fetchData
+});
+</script>
+
+<style scoped>
+.data-tables {
+  margin: 20px;
+}
+
+.table-section {
+  margin-bottom: 30px;
+}
+
+table {
+  width: 100%;
+  border-collapse: collapse;
+  margin-top: 10px;
+}
+
+th, td {
+  border: 1px solid #ddd;
+  padding: 8px;
+  text-align: left;
+}
+
+th {
+  background-color: #f5f5f5;
+}
+
+tr:nth-child(even) {
+  background-color: #f9f9f9;
+}
+</style> 
\ No newline at end of file