diff --git a/README.md b/README.md
index 6304a45..cb0e482 100644
--- a/README.md
+++ b/README.md
@@ -69,6 +69,11 @@ $conn = $this->get('doctrine.dbal.clickhouse_connection');
 
 ## Usage
 
+### Create database
+```php
+php bin/console doctrine:database:create --connection=clickhouse --if-not-exists
+```
+
 ### Create new table
 ```php
 // ***quick start***
diff --git a/src/ClickHousePlatform.php b/src/ClickHousePlatform.php
index 6dae699..ce3d020 100644
--- a/src/ClickHousePlatform.php
+++ b/src/ClickHousePlatform.php
@@ -1085,7 +1085,7 @@ public function getDropViewSQL($name) : string
      */
     public function getCreateDatabaseSQL($database) : string
     {
-        return 'CREATE DATABASE ' . $this->quoteIdentifier($database);
+        return 'CREATE DATABASE ' . $database;
     }
 
     /**
diff --git a/src/Driver.php b/src/Driver.php
index 9f80080..46218d7 100644
--- a/src/Driver.php
+++ b/src/Driver.php
@@ -50,10 +50,6 @@ public function connect(array $params, $username = null, $password = null, array
             throw new ClickHouseException('Connection parameter `port` is required');
         }
 
-        if (! isset($params['dbname'])) {
-            throw new ClickHouseException('Connection parameter `dbname` is required');
-        }
-
         return new ClickHouseConnection($params, (string) $username, (string) $password, $this->getDatabasePlatform());
     }