diff --git a/dibi/drivers/mssql.php b/dibi/drivers/mssql.php
index fb99d564..0b32cb7b 100644
--- a/dibi/drivers/mssql.php
+++ b/dibi/drivers/mssql.php
@@ -76,11 +76,11 @@ class DibiMsSqlDriver extends NObject implements DibiDriverInterface
         }
 
         if (!is_resource($this->connection)) {
-            throw new DibiDatabaseException("Can't connect to DB");
+            throw new DibiDriverException("Can't connect to DB");
         }
 
         if (isset($config['database']) && !@mssql_select_db($config['database'], $this->connection)) {
-            throw new DibiDatabaseException("Can't select DB '$config[database]'");
+            throw new DibiDriverException("Can't select DB '$config[database]'");
         }
     }
 
@@ -103,14 +103,14 @@ class DibiMsSqlDriver extends NObject implements DibiDriverInterface
      *
      * @param string       SQL statement.
      * @return bool        have resultset?
-     * @throws DibiDatabaseException
+     * @throws DibiDriverException
      */
     public function query($sql)
     {
         $this->resultset = @mssql_query($sql, $this->connection);
 
         if ($this->resultset === FALSE) {
-            throw new DibiDatabaseException('Query error', 0, $sql);
+            throw new DibiDriverException('Query error', 0, $sql);
         }
 
         return is_resource($this->resultset);
diff --git a/dibi/drivers/mysql.php b/dibi/drivers/mysql.php
index c3046075..1be9137a 100644
--- a/dibi/drivers/mysql.php
+++ b/dibi/drivers/mysql.php
@@ -106,7 +106,7 @@ class DibiMySqlDriver extends NObject implements DibiDriverInterface
         }
 
         if (!is_resource($this->connection)) {
-            throw new DibiDatabaseException(mysql_error(), mysql_errno());
+            throw new DibiDriverException(mysql_error(), mysql_errno());
         }
 
         if (isset($config['charset'])) {
@@ -115,7 +115,7 @@ class DibiMySqlDriver extends NObject implements DibiDriverInterface
         }
 
         if (isset($config['database']) && !@mysql_select_db($config['database'], $this->connection)) {
-            throw new DibiDatabaseException(mysql_error($this->connection), mysql_errno($this->connection));
+            throw new DibiDriverException(mysql_error($this->connection), mysql_errno($this->connection));
         }
 
         $this->buffered = empty($config['unbuffered']);
@@ -140,7 +140,7 @@ class DibiMySqlDriver extends NObject implements DibiDriverInterface
      *
      * @param string       SQL statement.
      * @return bool        have resultset?
-     * @throws DibiDatabaseException
+     * @throws DibiDriverException
      */
     public function query($sql)
     {
@@ -151,7 +151,7 @@ class DibiMySqlDriver extends NObject implements DibiDriverInterface
         }
 
         if ($errno = mysql_errno($this->connection)) {
-            throw new DibiDatabaseException(mysql_error($this->connection), $errno, $sql);
+            throw new DibiDriverException(mysql_error($this->connection), $errno, $sql);
         }
 
         return is_resource($this->resultset);
@@ -264,7 +264,7 @@ class DibiMySqlDriver extends NObject implements DibiDriverInterface
     public function rowCount()
     {
         if (!$this->buffered) {
-            throw new DibiDatabaseException('Row count is not available for unbuffered queries');
+            throw new DibiDriverException('Row count is not available for unbuffered queries');
         }
         return mysql_num_rows($this->resultset);
     }
@@ -294,7 +294,7 @@ class DibiMySqlDriver extends NObject implements DibiDriverInterface
     public function seek($row)
     {
         if (!$this->buffered) {
-            throw new DibiDatabaseException('Cannot seek an unbuffered result set');
+            throw new DibiDriverException('Cannot seek an unbuffered result set');
         }
 
         return mysql_data_seek($this->resultset, $row);
diff --git a/dibi/drivers/mysqli.php b/dibi/drivers/mysqli.php
index 6b056f5e..783bf6aa 100644
--- a/dibi/drivers/mysqli.php
+++ b/dibi/drivers/mysqli.php
@@ -95,7 +95,7 @@ class DibiMySqliDriver extends NObject implements DibiDriverInterface
         @mysqli_real_connect($this->connection, $config['host'], $config['username'], $config['password'], $config['database'], $config['port'], $config['socket'], $config['options']);
 
         if ($errno = mysqli_connect_errno()) {
-            throw new DibiDatabaseException(mysqli_connect_error(), $errno);
+            throw new DibiDriverException(mysqli_connect_error(), $errno);
         }
 
         if (isset($config['charset'])) {
@@ -123,14 +123,14 @@ class DibiMySqliDriver extends NObject implements DibiDriverInterface
      *
      * @param string       SQL statement.
      * @return bool        have resultset?
-     * @throws DibiDatabaseException
+     * @throws DibiDriverException
      */
     public function query($sql)
     {
         $this->resultset = @mysqli_query($this->connection, $sql, $this->buffered ? MYSQLI_STORE_RESULT : MYSQLI_USE_RESULT);
 
         if ($errno = mysqli_errno($this->connection)) {
-            throw new DibiDatabaseException(mysqli_error($this->connection), $errno, $sql);
+            throw new DibiDriverException(mysqli_error($this->connection), $errno, $sql);
         }
 
         return is_object($this->resultset);
@@ -169,7 +169,7 @@ class DibiMySqliDriver extends NObject implements DibiDriverInterface
     public function begin()
     {
         if (!mysqli_autocommit($this->connection, FALSE)) {
-            throw new DibiDatabaseException(mysqli_error($this->connection), mysqli_errno($this->connection));
+            throw new DibiDriverException(mysqli_error($this->connection), mysqli_errno($this->connection));
         }
     }
 
@@ -182,7 +182,7 @@ class DibiMySqliDriver extends NObject implements DibiDriverInterface
     public function commit()
     {
         if (!mysqli_commit($this->connection)) {
-            throw new DibiDatabaseException(mysqli_error($this->connection), mysqli_errno($this->connection));
+            throw new DibiDriverException(mysqli_error($this->connection), mysqli_errno($this->connection));
         }
         mysqli_autocommit($this->connection, TRUE);
     }
@@ -196,7 +196,7 @@ class DibiMySqliDriver extends NObject implements DibiDriverInterface
     public function rollback()
     {
         if (!mysqli_rollback($this->connection)) {
-            throw new DibiDatabaseException(mysqli_error($this->connection), mysqli_errno($this->connection));
+            throw new DibiDriverException(mysqli_error($this->connection), mysqli_errno($this->connection));
         }
         mysqli_autocommit($this->connection, TRUE);
     }
@@ -252,7 +252,7 @@ class DibiMySqliDriver extends NObject implements DibiDriverInterface
     public function rowCount()
     {
         if (!$this->buffered) {
-            throw new DibiDatabaseException('Row count is not available for unbuffered queries');
+            throw new DibiDriverException('Row count is not available for unbuffered queries');
         }
         return mysqli_num_rows($this->resultset);
     }
@@ -282,7 +282,7 @@ class DibiMySqliDriver extends NObject implements DibiDriverInterface
     public function seek($row)
     {
         if (!$this->buffered) {
-            throw new DibiDatabaseException('Cannot seek an unbuffered result set');
+            throw new DibiDriverException('Cannot seek an unbuffered result set');
         }
         return mysqli_data_seek($this->resultset, $row);
     }
diff --git a/dibi/drivers/odbc.php b/dibi/drivers/odbc.php
index d0d6bc3e..5aaab5d3 100644
--- a/dibi/drivers/odbc.php
+++ b/dibi/drivers/odbc.php
@@ -86,7 +86,7 @@ class DibiOdbcDriver extends NObject implements DibiDriverInterface
         }
 
         if (!is_resource($this->connection)) {
-            throw new DibiDatabaseException(odbc_errormsg() . ' ' . odbc_error());
+            throw new DibiDriverException(odbc_errormsg() . ' ' . odbc_error());
         }
     }
 
@@ -109,14 +109,14 @@ class DibiOdbcDriver extends NObject implements DibiDriverInterface
      *
      * @param string       SQL statement.
      * @return bool        have resultset?
-     * @throws DibiDatabaseException
+     * @throws DibiDriverException
      */
     public function query($sql)
     {
         $this->resultset = @odbc_exec($this->connection, $sql);
 
         if ($this->resultset === FALSE) {
-            throw new DibiDatabaseException(odbc_errormsg($this->connection) . ' ' . odbc_error($this->connection), 0, $sql);
+            throw new DibiDriverException(odbc_errormsg($this->connection) . ' ' . odbc_error($this->connection), 0, $sql);
         }
 
         return is_resource($this->resultset);
@@ -155,7 +155,7 @@ class DibiOdbcDriver extends NObject implements DibiDriverInterface
     public function begin()
     {
         if (!odbc_autocommit($this->connection, FALSE)) {
-            throw new DibiDatabaseException(odbc_errormsg($this->connection)  . ' ' . odbc_error($this->connection));
+            throw new DibiDriverException(odbc_errormsg($this->connection)  . ' ' . odbc_error($this->connection));
         }
     }
 
@@ -168,7 +168,7 @@ class DibiOdbcDriver extends NObject implements DibiDriverInterface
     public function commit()
     {
         if (!odbc_commit($this->connection)) {
-            throw new DibiDatabaseException(odbc_errormsg($this->connection) . ' ' . odbc_error($this->connection));
+            throw new DibiDriverException(odbc_errormsg($this->connection) . ' ' . odbc_error($this->connection));
         }
         odbc_autocommit($this->connection, TRUE);
     }
@@ -182,7 +182,7 @@ class DibiOdbcDriver extends NObject implements DibiDriverInterface
     public function rollback()
     {
         if (!odbc_rollback($this->connection)) {
-            throw new DibiDatabaseException(odbc_errormsg($this->connection) . ' ' . odbc_error($this->connection));
+            throw new DibiDriverException(odbc_errormsg($this->connection) . ' ' . odbc_error($this->connection));
         }
         odbc_autocommit($this->connection, TRUE);
     }
diff --git a/dibi/drivers/oracle.php b/dibi/drivers/oracle.php
index 160f1f08..9b24c1a2 100644
--- a/dibi/drivers/oracle.php
+++ b/dibi/drivers/oracle.php
@@ -78,7 +78,7 @@ class DibiOracleDriver extends NObject implements DibiDriverInterface
 
         if (!$this->connection) {
             $err = oci_error();
-            throw new DibiDatabaseException($err['message'], $err['code']);
+            throw new DibiDriverException($err['message'], $err['code']);
         }
     }
 
@@ -101,7 +101,7 @@ class DibiOracleDriver extends NObject implements DibiDriverInterface
      *
      * @param string       SQL statement.
      * @return bool        have resultset?
-     * @throws DibiDatabaseException
+     * @throws DibiDriverException
      */
     public function query($sql)
     {
@@ -111,11 +111,11 @@ class DibiOracleDriver extends NObject implements DibiDriverInterface
             oci_execute($this->resultset, $this->autocommit ? OCI_COMMIT_ON_SUCCESS : OCI_DEFAULT);
             $err = oci_error($this->resultset);
             if ($err) {
-                throw new DibiDatabaseException($err['message'], $err['code'], $sql);
+                throw new DibiDriverException($err['message'], $err['code'], $sql);
             }
         } else {
             $err = oci_error($this->connection);
-            throw new DibiDatabaseException($err['message'], $err['code'], $sql);
+            throw new DibiDriverException($err['message'], $err['code'], $sql);
         }
 
         return is_resource($this->resultset);
@@ -166,7 +166,7 @@ class DibiOracleDriver extends NObject implements DibiDriverInterface
     {
         if (!oci_commit($this->connection)) {
             $err = oci_error($this->connection);
-            throw new DibiDatabaseException($err['message'], $err['code']);
+            throw new DibiDriverException($err['message'], $err['code']);
         }
         $this->autocommit = TRUE;
     }
@@ -181,7 +181,7 @@ class DibiOracleDriver extends NObject implements DibiDriverInterface
     {
         if (!oci_rollback($this->connection)) {
             $err = oci_error($this->connection);
-            throw new DibiDatabaseException($err['message'], $err['code']);
+            throw new DibiDriverException($err['message'], $err['code']);
         }
         $this->autocommit = TRUE;
     }
diff --git a/dibi/drivers/pdo.php b/dibi/drivers/pdo.php
index 96cdd10b..f8cfa702 100644
--- a/dibi/drivers/pdo.php
+++ b/dibi/drivers/pdo.php
@@ -68,7 +68,16 @@ class DibiPdoDriver extends NObject implements DibiDriverInterface
             throw new DibiException("PHP extension 'pdo' is not loaded");
         }
 
-        $this->connection = new PDO($config['dsn'], $config['username'], $config['password'], $config['options']);
+        try {
+            $this->connection = new PDO($config['dsn'], $config['username'], $config['password'], $config['options']);
+        } catch (PDOException $e) {
+           throw $this->convertException($e);
+        }
+
+        if (!$this->connection) {
+            throw new DibiDriverException('Connecting error');
+        }
+
         $this->connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
     }
 
@@ -90,11 +99,15 @@ class DibiPdoDriver extends NObject implements DibiDriverInterface
      *
      * @param string       SQL statement.
      * @return bool        have resultset?
-     * @throws DibiDatabaseException
+     * @throws DibiDriverException
      */
     public function query($sql)
     {
-        $this->resultset = $this->connection->query($sql);
+        try {
+            $this->resultset = $this->connection->query($sql);
+        } catch (PDOException $e) {
+           throw $this->convertException($e);
+        }
         return $this->resultset instanceof PDOStatement;
     }
 
@@ -130,7 +143,11 @@ class DibiPdoDriver extends NObject implements DibiDriverInterface
      */
     public function begin()
     {
-        $this->connection->beginTransaction();
+        try {
+            $this->connection->beginTransaction();
+        } catch (PDOException $e) {
+           throw $this->convertException($e);
+        }
     }
 
 
@@ -141,7 +158,11 @@ class DibiPdoDriver extends NObject implements DibiDriverInterface
      */
     public function commit()
     {
-        $this->connection->commit();
+        try {
+            $this->connection->commit();
+        } catch (PDOException $e) {
+           throw $this->convertException($e);
+        }
     }
 
 
@@ -152,7 +173,11 @@ class DibiPdoDriver extends NObject implements DibiDriverInterface
      */
     public function rollback()
     {
-        $this->connection->rollBack();
+        try {
+            $this->connection->rollBack();
+        } catch (PDOException $e) {
+           throw $this->convertException($e);
+        }
     }
 
 
@@ -199,7 +224,7 @@ class DibiPdoDriver extends NObject implements DibiDriverInterface
      */
     public function rowCount()
     {
-        throw new DibiDatabaseException('Row count is not available for unbuffered queries');
+        throw new DibiDriverException('Row count is not available for unbuffered queries');
     }
 
 
@@ -226,7 +251,7 @@ class DibiPdoDriver extends NObject implements DibiDriverInterface
      */
     public function seek($row)
     {
-        throw new DibiDatabaseException('Cannot seek an unbuffered result set');
+        throw new DibiDriverException('Cannot seek an unbuffered result set');
     }
 
 
@@ -291,4 +316,17 @@ class DibiPdoDriver extends NObject implements DibiDriverInterface
     function getDibiReflection()
     {}
 
+
+
+    /**
+     * Disconnects from a database
+     *
+     * @param  PDOException
+     * @return DibiDriverException
+     */
+    private function convertException($e)
+    {
+        return new DibiDriverException($e->getMessage(), $e->getCode());
+    }
+
 }
diff --git a/dibi/drivers/postgre.php b/dibi/drivers/postgre.php
index a5c8bb53..ef4dfa92 100644
--- a/dibi/drivers/postgre.php
+++ b/dibi/drivers/postgre.php
@@ -66,7 +66,7 @@ class DibiPostgreDriver extends NObject implements DibiDriverInterface
         }
 
 
-        NException::catchError('DibiDatabaseException');
+        NException::catchError('DibiDriverException');
         if (isset($config['persistent'])) {
             $this->connection = @pg_connect($config['database'], PGSQL_CONNECT_FORCE_NEW);
         } else {
@@ -75,7 +75,7 @@ class DibiPostgreDriver extends NObject implements DibiDriverInterface
         NException::restore();
 
         if (!is_resource($this->connection)) {
-            throw new DibiDatabaseException('unknown error');
+            throw new DibiDriverException('Connecting error');
         }
 
         if (isset($config['charset'])) {
@@ -104,14 +104,14 @@ class DibiPostgreDriver extends NObject implements DibiDriverInterface
      * @param string       SQL statement.
      * @param bool         update affected rows?
      * @return bool        have resultset?
-     * @throws DibiDatabaseException
+     * @throws DibiDriverException
      */
     public function query($sql)
     {
         $this->resultset = @pg_query($this->connection, $sql);
 
         if ($this->resultset === FALSE) {
-            throw new DibiDatabaseException(pg_last_error($this->connection), 0, $sql);
+            throw new DibiDriverException(pg_last_error($this->connection), 0, $sql);
         }
 
         return is_resource($this->resultset);
diff --git a/dibi/drivers/sqlite.php b/dibi/drivers/sqlite.php
index 74eb323b..af21b81b 100644
--- a/dibi/drivers/sqlite.php
+++ b/dibi/drivers/sqlite.php
@@ -78,7 +78,7 @@ class DibiSqliteDriver extends NObject implements DibiDriverInterface
         }
 
         if (!$this->connection) {
-            throw new DibiDatabaseException($errorMsg);
+            throw new DibiDriverException($errorMsg);
         }
 
         $this->buffered = empty($config['unbuffered']);
@@ -102,7 +102,7 @@ class DibiSqliteDriver extends NObject implements DibiDriverInterface
      *
      * @param string       SQL statement.
      * @return bool        have resultset?
-     * @throws DibiDatabaseException
+     * @throws DibiDriverException
      */
     public function query($sql)
     {
@@ -115,7 +115,7 @@ class DibiSqliteDriver extends NObject implements DibiDriverInterface
         }
 
         if ($errorMsg !== NULL) {
-            throw new DibiDatabaseException($errorMsg, sqlite_last_error($this->connection), $sql);
+            throw new DibiDriverException($errorMsg, sqlite_last_error($this->connection), $sql);
         }
 
         return is_resource($this->resultset);
@@ -225,7 +225,7 @@ class DibiSqliteDriver extends NObject implements DibiDriverInterface
     public function rowCount()
     {
         if (!$this->buffered) {
-            throw new DibiDatabaseException('Row count is not available for unbuffered queries');
+            throw new DibiDriverException('Row count is not available for unbuffered queries');
         }
         return sqlite_num_rows($this->resultset);
     }
@@ -255,7 +255,7 @@ class DibiSqliteDriver extends NObject implements DibiDriverInterface
     public function seek($row)
     {
         if (!$this->buffered) {
-            throw new DibiDatabaseException('Cannot seek an unbuffered result set');
+            throw new DibiDriverException('Cannot seek an unbuffered result set');
         }
         return sqlite_seek($this->resultset, $row);
     }
diff --git a/dibi/libs/DibiDriverInterface.php b/dibi/libs/DibiDriverInterface.php
index a717138a..0c0e284f 100644
--- a/dibi/libs/DibiDriverInterface.php
+++ b/dibi/libs/DibiDriverInterface.php
@@ -56,7 +56,7 @@ interface DibiDriverInterface
      *
      * @param string       SQL statement.
      * @return bool        have resultset?
-     * @throws DibiDatabaseException
+     * @throws DibiDriverException
      */
     function query($sql);
 
diff --git a/dibi/libs/DibiException.php b/dibi/libs/DibiException.php
index f8651112..a224c8b0 100644
--- a/dibi/libs/DibiException.php
+++ b/dibi/libs/DibiException.php
@@ -40,7 +40,7 @@ class DibiException extends Exception
  * @package    dibi
  * @version    $Revision$ $Date$
  */
-class DibiDatabaseException extends DibiException
+class DibiDriverException extends DibiException
 {
     /** @var string */
     private $sql;
diff --git a/dibi/libs/DibiLogger.php b/dibi/libs/DibiLogger.php
index 045ceafb..374d271b 100644
--- a/dibi/libs/DibiLogger.php
+++ b/dibi/libs/DibiLogger.php
@@ -73,7 +73,7 @@ final class DibiLogger extends NObject
         }
 
         if ($event === 'exception' && $this->logErrors) {
-            // $arg is DibiDatabaseException
+            // $arg is DibiDriverException
             $message = $arg->getMessage();
             $code = $arg->getCode();
             if ($code) {