diff --git a/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Bool.php b/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Bool.php
index 58fde57ec4..c6dce4d685 100644
--- a/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Bool.php
+++ b/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Bool.php
@@ -18,15 +18,13 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
- ************************************************************************/ 
+ ************************************************************************/
 
 namespace Espo\Core\Utils\Database\DBAL\FieldTypes;
 
-use Doctrine\DBAL\Types\Type;
-use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Types\BooleanType;
 
-
-class Bool extends Type
+class Bool extends BooleanType
 {
 	const BOOL = 'bool';
 
@@ -39,27 +37,4 @@ class Bool extends Type
 	{
 		return 'TINYINT';
 	}
-
-
-    public function getSQLDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
-    {
-        return $platform->getBooleanTypeDeclarationSQL($fieldDeclaration);
-    }
-
-
-    public function convertToDatabaseValue($value, AbstractPlatform $platform)
-    {
-        return $platform->convertBooleans($value);
-    }
-
-
-    public function convertToPHPValue($value, AbstractPlatform $platform)
-    {
-        return (null === $value) ? null : (bool) $value;
-    }
-
-    public function getBindingType()
-    {
-        return \PDO::PARAM_BOOL;
-    }
 }
\ No newline at end of file
diff --git a/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Int.php b/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Int.php
index cbadfc5f97..0c0c688af0 100644
--- a/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Int.php
+++ b/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Int.php
@@ -18,38 +18,18 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
- ************************************************************************/ 
+ ************************************************************************/
 
 namespace Espo\Core\Utils\Database\DBAL\FieldTypes;
 
-use Doctrine\DBAL\Types\Type;
-use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Types\IntegerType;
 
-
-class Int extends Type
+class Int extends IntegerType
 {
 	const INTtype = 'int';
 
-
     public function getName()
     {
         return self::INTtype;
     }
-
-    public function getSQLDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
-    {
-        return $platform->getIntegerTypeDeclarationSQL($fieldDeclaration);
-    }
-
-
-    public function convertToPHPValue($value, AbstractPlatform $platform)
-    {
-        return (null === $value) ? null : (int) $value;
-    }
-
-    
-    public function getBindingType()
-    {
-        return \PDO::PARAM_INT;
-    }
 }
\ No newline at end of file
diff --git a/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Password.php b/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Password.php
index b9a03c10ff..5d408dfec6 100644
--- a/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Password.php
+++ b/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Password.php
@@ -18,14 +18,13 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
- ************************************************************************/ 
+ ************************************************************************/
 
 namespace Espo\Core\Utils\Database\DBAL\FieldTypes;
 
-use Doctrine\DBAL\Types\Type;
-use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Types\StringType;
 
-class Password extends Type
+class Password extends StringType
 {
     const PASSWORD = 'password';
 
@@ -38,23 +37,5 @@ class Password extends Type
 	{
 		return 'VARCHAR';
 	}
-
-    public function getSqlDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
-    {
-        return $platform->getVarcharTypeDeclarationSQL($fieldDeclaration);
-		//return "MD5";
-    }
-
-    /*public function convertToPHPValue($value, AbstractPlatform $platform)
-    {
-        return $value;
-    }
-
-    public function convertToDatabaseValue($value, AbstractPlatform $platform)
-    {
-        return $value;
-    } */
-
-
 }
 
diff --git a/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Varchar.php b/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Varchar.php
index 800aaf5402..77910cc1e3 100644
--- a/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Varchar.php
+++ b/application/Espo/Core/Utils/Database/DBAL/FieldTypes/Varchar.php
@@ -18,15 +18,13 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
- ************************************************************************/ 
+ ************************************************************************/
 
 namespace Espo\Core\Utils\Database\DBAL\FieldTypes;
 
-use Doctrine\DBAL\Types\Type;
-use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Types\StringType;
 
-
-class Varchar extends Type
+class Varchar extends StringType
 {
 	const VARCHAR = 'varchar';
 
@@ -34,16 +32,4 @@ class Varchar extends Type
     {
         return self::VARCHAR;
     }
-
-    public function getSQLDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
-    {
-        return $platform->getVarcharTypeDeclarationSQL($fieldDeclaration);
-		//return 'varchar';
-    }
-
-
-    public function getDefaultLength(AbstractPlatform $platform)
-    {
-        return $platform->getVarcharDefaultLength();
-    }
 }
\ No newline at end of file