diff --git a/UPGRADE.md b/UPGRADE.md
index 3381b183411..d4d939c21b1 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -1,5 +1,20 @@
 # Upgrade to 3.0 (DEVELOP)
 
+## BC BREAK: Removed support for SQL Anywhere 12 and older
+
+DBAL now requires SQL Anywhere 16 or newer, support for unmaintained versions has been dropped.
+If you are using any of the legacy versions, you have to upgrade to newer SQL Anywhere version (16+).
+`Doctrine\DBAL\Platforms\SQLAnywherePlatform` and `Doctrine\DBAL\Platforms\Keywords\SQLAnywhereKeywords` now represent the SQL Anywhere 16.
+
+The following classes have been removed:
+
+ * `Doctrine\DBAL\Platforms\SQLAnywhere11Platform`
+ * `Doctrine\DBAL\Platforms\SQLAnywhere12Platform`
+ * `Doctrine\DBAL\Platforms\SQLAnywhere16Platform`  
+ * `Doctrine\DBAL\Platforms\Keywords\SQLAnywhere11Keywords`
+ * `Doctrine\DBAL\Platforms\Keywords\SQLAnywhere12Keywords`
+ * `Doctrine\DBAL\Platforms\Keywords\SQLAnywhere16Keywords`
+
 ## BC BREAK: Removed support for SQL Server 2005 and older
 
 DBAL now requires SQL Server 2008 or newer, support for unmaintained versions has been dropped.
diff --git a/docs/en/reference/configuration.rst b/docs/en/reference/configuration.rst
index 9a2235bc5c4..bc130cc05a8 100644
--- a/docs/en/reference/configuration.rst
+++ b/docs/en/reference/configuration.rst
@@ -311,14 +311,9 @@ sqlanywhere
 Depending on the used underlying platform version, you can specify
 any other connection parameter that is supported by the particular
 platform version via the ``driverOptions`` option.
-You can find a list of supported connection parameters for each
-platform version here:
-
-- `SQL Anywhere 10.0.1 <http://dcx.sybase.com/index.html#1001/en/dbdaen10/da-conmean.html>`_
-- `SQL Anywhere 11.0.0 <http://dcx.sybase.com/index.html#1100/en/dbadmin_en11/conmean.html>`_
-- `SQL Anywhere 11.0.1 <http://dcx.sybase.com/index.html#1101/en/dbadmin_en11/conmean.html>`_
-- `SQL Anywhere 12.0.0 <http://dcx.sybase.com/index.html#1200/en/dbadmin/da-conparm.html>`_
-- `SQL Anywhere 12.0.1 <http://dcx.sybase.com/index.html#1201/en/dbadmin/da-conparm.html>`_
+You can find a list of supported connection parameters for the
+currently supported platform here:
+
 - `SAP Sybase SQL Anywhere 16.0 <http://dcx.sybase.com/index.html#sa160/en/dbadmin/da-conparm.html>`_
 
 Automatic platform version detection
diff --git a/docs/en/reference/types.rst b/docs/en/reference/types.rst
index b43da04ab90..a7801311c97 100644
--- a/docs/en/reference/types.rst
+++ b/docs/en/reference/types.rst
@@ -695,9 +695,7 @@ Please also notice the mapping specific footnotes for additional information.
 |                   |               +--------------------------+         |                                                          |
 |                   |               | **Oracle**               |         |                                                          |
 |                   |               +--------------------------+---------+----------------------------------------------------------+
-|                   |               | **SQL Anywhere**         | < 12    | ``DATETIME``  [14]_ [15]_                                |
-|                   |               |                          +---------+----------------------------------------------------------+
-|                   |               |                          | >= 12   | ``TIMESTAMP WITH TIME ZONE``                             |
+|                   |               | **SQL Anywhere**         | "all"   | ``TIMESTAMP WITH TIME ZONE``                             |
 +-------------------+---------------+--------------------------+---------+----------------------------------------------------------+
 | **time**          | ``\DateTime`` | **MySQL**                | *all*   | ``TIME``                                                 |
 |                   |               +--------------------------+         |                                                          |
diff --git a/lib/Doctrine/DBAL/Driver/AbstractSQLAnywhereDriver.php b/lib/Doctrine/DBAL/Driver/AbstractSQLAnywhereDriver.php
index 2dbc5030847..c83458e0037 100644
--- a/lib/Doctrine/DBAL/Driver/AbstractSQLAnywhereDriver.php
+++ b/lib/Doctrine/DBAL/Driver/AbstractSQLAnywhereDriver.php
@@ -5,9 +5,6 @@
 use Doctrine\DBAL\DBALException;
 use Doctrine\DBAL\Driver;
 use Doctrine\DBAL\Exception;
-use Doctrine\DBAL\Platforms\SQLAnywhere11Platform;
-use Doctrine\DBAL\Platforms\SQLAnywhere12Platform;
-use Doctrine\DBAL\Platforms\SQLAnywhere16Platform;
 use Doctrine\DBAL\Platforms\SQLAnywherePlatform;
 use Doctrine\DBAL\Schema\SQLAnywhereSchemaManager;
 use Doctrine\DBAL\VersionAwarePlatformDriver;
@@ -89,12 +86,6 @@ public function createDatabasePlatformForVersion($version)
         $version      = $majorVersion . '.' . $minorVersion . '.' . $patchVersion . '.' . $buildVersion;
 
         switch(true) {
-            case version_compare($version, '16', '>='):
-                return new SQLAnywhere16Platform();
-            case version_compare($version, '12', '>='):
-                return new SQLAnywhere12Platform();
-            case version_compare($version, '11', '>='):
-                return new SQLAnywhere11Platform();
             default:
                 return new SQLAnywherePlatform();
         }
@@ -115,7 +106,7 @@ public function getDatabase(\Doctrine\DBAL\Connection $conn)
      */
     public function getDatabasePlatform()
     {
-        return new SQLAnywhere12Platform();
+        return new SQLAnywherePlatform();
     }
 
     /**
diff --git a/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhere11Keywords.php b/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhere11Keywords.php
deleted file mode 100644
index 2c953b0b95d..00000000000
--- a/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhere11Keywords.php
+++ /dev/null
@@ -1,38 +0,0 @@
-<?php
-
-namespace Doctrine\DBAL\Platforms\Keywords;
-
-/**
- * SAP Sybase SQL Anywhere 11 reserved keywords list.
- *
- * @author Steve Müller <st.mueller@dzh-online.de>
- */
-class SQLAnywhere11Keywords extends SQLAnywhereKeywords
-{
-    /**
-     * {@inheritdoc}
-     */
-    public function getName()
-    {
-        return 'SQLAnywhere11';
-    }
-
-    /**
-     * {@inheritdoc}
-     *
-     * @link http://dcx.sybase.com/1100/en/dbreference_en11/alhakeywords.html
-     */
-    protected function getKeywords()
-    {
-        return array_merge(
-            array_diff(
-                parent::getKeywords(),
-                ['IQ']
-            ),
-            [
-                'MERGE',
-                'OPENSTRING'
-            ]
-        );
-    }
-}
diff --git a/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhere12Keywords.php b/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhere12Keywords.php
deleted file mode 100644
index cd7f9d4d801..00000000000
--- a/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhere12Keywords.php
+++ /dev/null
@@ -1,47 +0,0 @@
-<?php
-
-namespace Doctrine\DBAL\Platforms\Keywords;
-
-/**
- * SAP Sybase SQL Anywhere 12 reserved keywords list.
- *
- * @author Steve Müller <st.mueller@dzh-online.de>
- */
-class SQLAnywhere12Keywords extends SQLAnywhere11Keywords
-{
-    /**
-     * {@inheritdoc}
-     */
-    public function getName()
-    {
-        return 'SQLAnywhere12';
-    }
-
-    /**
-     * {@inheritdoc}
-     *
-     * @link http://dcx.sybase.com/1200/en/dbreference/alhakeywords.html
-     */
-    protected function getKeywords()
-    {
-        return array_merge(
-            array_diff(
-                parent::getKeywords(),
-                [
-                    'INDEX_LPAREN',
-                    'SYNTAX_ERROR',
-                    'WITH_CUBE',
-                    'WITH_LPAREN',
-                    'WITH_ROLLUP'
-                ]
-            ),
-            [
-                'DATETIMEOFFSET',
-                'LIMIT',
-                'OPENXML',
-                'SPATIAL',
-                'TREAT'
-            ]
-        );
-    }
-}
diff --git a/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhere16Keywords.php b/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhere16Keywords.php
deleted file mode 100644
index c8cef87511e..00000000000
--- a/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhere16Keywords.php
+++ /dev/null
@@ -1,39 +0,0 @@
-<?php
-
-namespace Doctrine\DBAL\Platforms\Keywords;
-
-/**
- * SAP Sybase SQL Anywhere 16 reserved keywords list.
- *
- * @author Steve Müller <st.mueller@dzh-online.de>
- */
-class SQLAnywhere16Keywords extends SQLAnywhere12Keywords
-{
-    /**
-     * {@inheritdoc}
-     */
-    public function getName()
-    {
-        return 'SQLAnywhere16';
-    }
-
-    /**
-     * {@inheritdoc}
-     *
-     * @link http://dcx.sybase.com/index.html#sa160/en/dbreference/alhakeywords.html
-     */
-    protected function getKeywords()
-    {
-        return array_merge(
-            parent::getKeywords(),
-            [
-                'ARRAY',
-                'JSON',
-                'ROW',
-                'ROWTYPE',
-                'UNNEST',
-                'VARRAY'
-            ]
-        );
-    }
-}
diff --git a/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhereKeywords.php b/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhereKeywords.php
index 125f06d52d0..342177f4857 100644
--- a/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhereKeywords.php
+++ b/lib/Doctrine/DBAL/Platforms/Keywords/SQLAnywhereKeywords.php
@@ -30,6 +30,7 @@ protected function getKeywords()
             'ALTER',
             'AND',
             'ANY',
+            'ARRAY',
             'AS',
             'ASC',
             'ATTACH',
@@ -70,6 +71,7 @@ protected function getKeywords()
             'CURRENT_USER',
             'CURSOR',
             'DATE',
+            'DATETIMEOFFSET',
             'DBSPACE',
             'DEALLOCATE',
             'DEC',
@@ -116,7 +118,6 @@ protected function getKeywords()
             'IF',
             'IN',
             'INDEX',
-            'INDEX_LPAREN',
             'INNER',
             'INOUT',
             'INSENSITIVE',
@@ -129,20 +130,22 @@ protected function getKeywords()
             'INTEGRATED',
             'INTERSECT',
             'INTO',
-            'IQ',
             'IS',
             'ISOLATION',
             'JOIN',
+            'JSON',
             'KERBEROS',
             'KEY',
             'LATERAL',
             'LEFT',
             'LIKE',
+            'LIMIT',
             'LOCK',
             'LOGIN',
             'LONG',
             'MATCH',
             'MEMBERSHIP',
+            'MERGE',
             'MESSAGE',
             'MODE',
             'MODIFY',
@@ -160,6 +163,8 @@ protected function getKeywords()
             'OFF',
             'ON',
             'OPEN',
+            'OPENSTRING',
+            'OPENXML',
             'OPTION',
             'OPTIONS',
             'OR',
@@ -196,6 +201,8 @@ protected function getKeywords()
             'RIGHT',
             'ROLLBACK',
             'ROLLUP',
+            'ROW',
+            'ROWTYPE',
             'SAVE',
             'SAVEPOINT',
             'SCROLL',
@@ -207,6 +214,7 @@ protected function getKeywords()
             'SHARE',
             'SMALLINT',
             'SOME',
+            'SPATIAL',
             'SQLCODE',
             'SQLSTATE',
             'START',
@@ -214,7 +222,6 @@ protected function getKeywords()
             'SUBTRANS',
             'SUBTRANSACTION',
             'SYNCHRONIZE',
-            'SYNTAX_ERROR',
             'TABLE',
             'TEMPORARY',
             'THEN',
@@ -224,6 +231,7 @@ protected function getKeywords()
             'TO',
             'TOP',
             'TRAN',
+            'TREAT',
             'TRIGGER',
             'TRUNCATE',
             'TSEQUAL',
@@ -232,6 +240,7 @@ protected function getKeywords()
             'UNIQUE',
             'UNIQUEIDENTIFIER',
             'UNKNOWN',
+            'UNNEST',
             'UNSIGNED',
             'UPDATE',
             'UPDATING',
@@ -243,6 +252,7 @@ protected function getKeywords()
             'VARBIT',
             'VARCHAR',
             'VARIABLE',
+            'VARRAY',
             'VARYING',
             'VIEW',
             'WAIT',
@@ -252,9 +262,6 @@ protected function getKeywords()
             'WHILE',
             'WINDOW',
             'WITH',
-            'WITH_CUBE',
-            'WITH_LPAREN',
-            'WITH_ROLLUP',
             'WITHIN',
             'WORK',
             'WRITETEXT',
diff --git a/lib/Doctrine/DBAL/Platforms/SQLAnywhere11Platform.php b/lib/Doctrine/DBAL/Platforms/SQLAnywhere11Platform.php
deleted file mode 100644
index 875841a18d5..00000000000
--- a/lib/Doctrine/DBAL/Platforms/SQLAnywhere11Platform.php
+++ /dev/null
@@ -1,30 +0,0 @@
-<?php
-
-namespace Doctrine\DBAL\Platforms;
-
-/**
- * The SQLAnywhere11Platform provides the behavior, features and SQL dialect of the
- * SAP Sybase SQL Anywhere 11 database platform.
- *
- * @author Steve Müller <st.mueller@dzh-online.de>
- * @link   www.doctrine-project.org
- * @since  2.5
- */
-class SQLAnywhere11Platform extends SQLAnywherePlatform
-{
-    /**
-     * {@inheritdoc}
-     */
-    public function getRegexpExpression()
-    {
-        return 'REGEXP';
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    protected function getReservedKeywordsClass()
-    {
-        return Keywords\SQLAnywhere11Keywords::class;
-    }
-}
diff --git a/lib/Doctrine/DBAL/Platforms/SQLAnywhere12Platform.php b/lib/Doctrine/DBAL/Platforms/SQLAnywhere12Platform.php
deleted file mode 100644
index bf8e232bfe1..00000000000
--- a/lib/Doctrine/DBAL/Platforms/SQLAnywhere12Platform.php
+++ /dev/null
@@ -1,118 +0,0 @@
-<?php
-
-namespace Doctrine\DBAL\Platforms;
-
-use Doctrine\DBAL\Schema\Index;
-use Doctrine\DBAL\Schema\Sequence;
-
-/**
- * The SQLAnywhere12Platform provides the behavior, features and SQL dialect of the
- * SAP Sybase SQL Anywhere 12 database platform.
- *
- * @author Steve Müller <st.mueller@dzh-online.de>
- * @link   www.doctrine-project.org
- * @since  2.5
- */
-class SQLAnywhere12Platform extends SQLAnywhere11Platform
-{
-    /**
-     * {@inheritdoc}
-     */
-    public function getCreateSequenceSQL(Sequence $sequence)
-    {
-        return 'CREATE SEQUENCE ' . $sequence->getQuotedName($this) .
-            ' INCREMENT BY ' . $sequence->getAllocationSize() .
-            ' START WITH ' . $sequence->getInitialValue() .
-            ' MINVALUE ' . $sequence->getInitialValue();
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getAlterSequenceSQL(Sequence $sequence)
-    {
-        return 'ALTER SEQUENCE ' . $sequence->getQuotedName($this) .
-            ' INCREMENT BY ' . $sequence->getAllocationSize();
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getDateTimeTzFormatString()
-    {
-        return 'Y-m-d H:i:s.uP';
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getDateTimeTzTypeDeclarationSQL(array $fieldDeclaration)
-    {
-        return 'TIMESTAMP WITH TIME ZONE';
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getDropSequenceSQL($sequence)
-    {
-        if ($sequence instanceof Sequence) {
-            $sequence = $sequence->getQuotedName($this);
-        }
-
-        return 'DROP SEQUENCE ' . $sequence;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getListSequencesSQL($database)
-    {
-        return 'SELECT sequence_name, increment_by, start_with, min_value FROM SYS.SYSSEQUENCE';
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getSequenceNextValSQL($sequenceName)
-    {
-        return 'SELECT ' . $sequenceName . '.NEXTVAL';
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function supportsSequences()
-    {
-        return true;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    protected function getAdvancedIndexOptionsSQL(Index $index)
-    {
-        if ( ! $index->isPrimary() && $index->isUnique() && $index->hasFlag('with_nulls_not_distinct')) {
-            return ' WITH NULLS NOT DISTINCT' . parent::getAdvancedIndexOptionsSQL($index);
-        }
-
-        return parent::getAdvancedIndexOptionsSQL($index);
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    protected function getReservedKeywordsClass()
-    {
-        return Keywords\SQLAnywhere12Keywords::class;
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    protected function initializeDoctrineTypeMappings()
-    {
-        parent::initializeDoctrineTypeMappings();
-        $this->doctrineTypeMapping['timestamp with time zone'] = 'datetime';
-    }
-}
diff --git a/lib/Doctrine/DBAL/Platforms/SQLAnywhere16Platform.php b/lib/Doctrine/DBAL/Platforms/SQLAnywhere16Platform.php
deleted file mode 100644
index 8851474bfbd..00000000000
--- a/lib/Doctrine/DBAL/Platforms/SQLAnywhere16Platform.php
+++ /dev/null
@@ -1,43 +0,0 @@
-<?php
-
-namespace Doctrine\DBAL\Platforms;
-
-use Doctrine\Common\Proxy\Exception\UnexpectedValueException;
-use Doctrine\DBAL\Schema\Index;
-
-/**
- * The SQLAnywhere16Platform provides the behavior, features and SQL dialect of the
- * SAP Sybase SQL Anywhere 16 database platform.
- *
- * @author Steve Müller <st.mueller@dzh-online.de>
- * @link   www.doctrine-project.org
- * @since  2.5
- */
-class SQLAnywhere16Platform extends SQLAnywhere12Platform
-{
-    /**
-     * {@inheritdoc}
-     */
-    protected function getAdvancedIndexOptionsSQL(Index $index)
-    {
-        if ($index->hasFlag('with_nulls_distinct') && $index->hasFlag('with_nulls_not_distinct')) {
-            throw new UnexpectedValueException(
-                'An Index can either have a "with_nulls_distinct" or "with_nulls_not_distinct" flag but not both.'
-            );
-        }
-
-        if ( ! $index->isPrimary() && $index->isUnique() && $index->hasFlag('with_nulls_distinct')) {
-            return ' WITH NULLS DISTINCT' . parent::getAdvancedIndexOptionsSQL($index);
-        }
-
-        return parent::getAdvancedIndexOptionsSQL($index);
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    protected function getReservedKeywordsClass()
-    {
-        return Keywords\SQLAnywhere16Keywords::class;
-    }
-}
diff --git a/lib/Doctrine/DBAL/Platforms/SQLAnywherePlatform.php b/lib/Doctrine/DBAL/Platforms/SQLAnywherePlatform.php
index 9afaf850390..08ff0997c41 100644
--- a/lib/Doctrine/DBAL/Platforms/SQLAnywherePlatform.php
+++ b/lib/Doctrine/DBAL/Platforms/SQLAnywherePlatform.php
@@ -2,6 +2,7 @@
 
 namespace Doctrine\DBAL\Platforms;
 
+use Doctrine\Common\Proxy\Exception\UnexpectedValueException;
 use Doctrine\DBAL\DBALException;
 use Doctrine\DBAL\LockMode;
 use Doctrine\DBAL\Schema\Column;
@@ -10,13 +11,14 @@
 use Doctrine\DBAL\Schema\ForeignKeyConstraint;
 use Doctrine\DBAL\Schema\Identifier;
 use Doctrine\DBAL\Schema\Index;
+use Doctrine\DBAL\Schema\Sequence;
 use Doctrine\DBAL\Schema\Table;
 use Doctrine\DBAL\Schema\TableDiff;
 use Doctrine\DBAL\TransactionIsolationLevel;
 
 /**
  * The SQLAnywherePlatform provides the behavior, features and SQL dialect of the
- * SAP Sybase SQL Anywhere 10 database platform.
+ * SAP Sybase SQL Anywhere 12 database platform.
  *
  * @author Steve Müller <st.mueller@dzh-online.de>
  * @link   www.doctrine-project.org
@@ -500,7 +502,7 @@ public function getDateTimeTypeDeclarationSQL(array $fieldDeclaration)
      */
     public function getDateTimeTzFormatString()
     {
-        return $this->getDateTimeFormatString();
+        return 'Y-m-d H:i:s.uP';
     }
 
     /**
@@ -960,6 +962,14 @@ public function getMd5Expression($column)
         return "HASH(" . $column . ", 'MD5')";
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function getRegexpExpression()
+    {
+        return 'REGEXP';
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -1123,6 +1133,70 @@ public function getTruncateTableSQL($tableName, $cascade = false)
         return 'TRUNCATE TABLE ' . $tableIdentifier->getQuotedName($this);
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function getCreateSequenceSQL(Sequence $sequence)
+    {
+        return 'CREATE SEQUENCE ' . $sequence->getQuotedName($this) .
+            ' INCREMENT BY ' . $sequence->getAllocationSize() .
+            ' START WITH ' . $sequence->getInitialValue() .
+            ' MINVALUE ' . $sequence->getInitialValue();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getAlterSequenceSQL(Sequence $sequence)
+    {
+        return 'ALTER SEQUENCE ' . $sequence->getQuotedName($this) .
+            ' INCREMENT BY ' . $sequence->getAllocationSize();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getDropSequenceSQL($sequence)
+    {
+        if ($sequence instanceof Sequence) {
+            $sequence = $sequence->getQuotedName($this);
+        }
+
+        return 'DROP SEQUENCE ' . $sequence;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getListSequencesSQL($database)
+    {
+        return 'SELECT sequence_name, increment_by, start_with, min_value FROM SYS.SYSSEQUENCE';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getSequenceNextValSQL($sequenceName)
+    {
+        return 'SELECT ' . $sequenceName . '.NEXTVAL';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supportsSequences()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getDateTimeTzTypeDeclarationSQL(array $fieldDeclaration)
+    {
+        return 'TIMESTAMP WITH TIME ZONE';
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -1286,12 +1360,27 @@ protected function doModifyLimitQuery($query, $limit, $offset)
      */
     protected function getAdvancedIndexOptionsSQL(Index $index)
     {
+        if ($index->hasFlag('with_nulls_distinct') && $index->hasFlag('with_nulls_not_distinct')) {
+            throw new UnexpectedValueException(
+                'An Index can either have a "with_nulls_distinct" or "with_nulls_not_distinct" flag but not both.'
+            );
+        }
+
         $sql = '';
 
-        if ( ! $index->isPrimary() && $index->hasFlag('for_olap_workload')) {
+        if (! $index->isPrimary() && $index->hasFlag('for_olap_workload')) {
             $sql .= ' FOR OLAP WORKLOAD';
         }
 
+
+        if (! $index->isPrimary() && $index->isUnique() && $index->hasFlag('with_nulls_not_distinct')) {
+            return ' WITH NULLS NOT DISTINCT' . $sql;
+        }
+
+        if (! $index->isPrimary() && $index->isUnique() && $index->hasFlag('with_nulls_distinct')) {
+            return ' WITH NULLS DISTINCT' . $sql;
+        }
+
         return $sql;
     }
 
@@ -1445,6 +1534,7 @@ protected function initializeDoctrineTypeMappings()
             'smalldatetime' => 'datetime',
             'time' => 'time',
             'timestamp' => 'datetime',
+            'timestamp with time zone' => 'datetime',
             'binary' => 'binary',
             'image' => 'blob',
             'long binary' => 'blob',
diff --git a/lib/Doctrine/DBAL/Tools/Console/Command/ReservedWordsCommand.php b/lib/Doctrine/DBAL/Tools/Console/Command/ReservedWordsCommand.php
index 29964d1a492..9591737d7c7 100644
--- a/lib/Doctrine/DBAL/Tools/Console/Command/ReservedWordsCommand.php
+++ b/lib/Doctrine/DBAL/Tools/Console/Command/ReservedWordsCommand.php
@@ -10,9 +10,6 @@
 use Doctrine\DBAL\Platforms\Keywords\PostgreSQL94Keywords;
 use Doctrine\DBAL\Platforms\Keywords\PostgreSQLKeywords;
 use Doctrine\DBAL\Platforms\Keywords\ReservedKeywordsValidator;
-use Doctrine\DBAL\Platforms\Keywords\SQLAnywhere11Keywords;
-use Doctrine\DBAL\Platforms\Keywords\SQLAnywhere12Keywords;
-use Doctrine\DBAL\Platforms\Keywords\SQLAnywhere16Keywords;
 use Doctrine\DBAL\Platforms\Keywords\SQLAnywhereKeywords;
 use Doctrine\DBAL\Platforms\Keywords\SQLiteKeywords;
 use Doctrine\DBAL\Platforms\Keywords\SQLServer2012Keywords;
@@ -40,9 +37,6 @@ class ReservedWordsCommand extends Command
         'oracle'        => OracleKeywords::class,
         'db2'           => DB2Keywords::class,
         'sqlanywhere'   => SQLAnywhereKeywords::class,
-        'sqlanywhere11' => SQLAnywhere11Keywords::class,
-        'sqlanywhere12' => SQLAnywhere12Keywords::class,
-        'sqlanywhere16' => SQLAnywhere16Keywords::class,
     ];
 
     /**
@@ -97,9 +91,6 @@ protected function configure()
     * sqlserver
     * sqlserver2012
     * sqlanywhere
-    * sqlanywhere11
-    * sqlanywhere12
-    * sqlanywhere16
     * db2 (Not checked by default)
 EOT
         );
diff --git a/tests/Doctrine/Tests/DBAL/Driver/AbstractSQLAnywhereDriverTest.php b/tests/Doctrine/Tests/DBAL/Driver/AbstractSQLAnywhereDriverTest.php
index f2b13c3c1c9..efa3a97a2ab 100644
--- a/tests/Doctrine/Tests/DBAL/Driver/AbstractSQLAnywhereDriverTest.php
+++ b/tests/Doctrine/Tests/DBAL/Driver/AbstractSQLAnywhereDriverTest.php
@@ -3,7 +3,7 @@
 namespace Doctrine\Tests\DBAL\Driver;
 
 use Doctrine\DBAL\Connection;
-use Doctrine\DBAL\Platforms\SQLAnywhere12Platform;
+use Doctrine\DBAL\Platforms\SQLAnywherePlatform;
 use Doctrine\DBAL\Schema\SQLAnywhereSchemaManager;
 
 class AbstractSQLAnywhereDriverTest extends AbstractDriverTest
@@ -15,7 +15,7 @@ protected function createDriver()
 
     protected function createPlatform()
     {
-        return new SQLAnywhere12Platform();
+        return new SQLAnywherePlatform();
     }
 
     protected function createSchemaManager(Connection $connection)
@@ -25,37 +25,15 @@ protected function createSchemaManager(Connection $connection)
 
     protected function getDatabasePlatformsForVersions()
     {
-        return array(
-            array('10', 'Doctrine\DBAL\Platforms\SQLAnywherePlatform'),
-            array('10.0', 'Doctrine\DBAL\Platforms\SQLAnywherePlatform'),
-            array('10.0.0', 'Doctrine\DBAL\Platforms\SQLAnywherePlatform'),
-            array('10.0.0.0', 'Doctrine\DBAL\Platforms\SQLAnywherePlatform'),
-            array('10.1.2.3', 'Doctrine\DBAL\Platforms\SQLAnywherePlatform'),
-            array('10.9.9.9', 'Doctrine\DBAL\Platforms\SQLAnywherePlatform'),
-            array('11', 'Doctrine\DBAL\Platforms\SQLAnywhere11Platform'),
-            array('11.0', 'Doctrine\DBAL\Platforms\SQLAnywhere11Platform'),
-            array('11.0.0', 'Doctrine\DBAL\Platforms\SQLAnywhere11Platform'),
-            array('11.0.0.0', 'Doctrine\DBAL\Platforms\SQLAnywhere11Platform'),
-            array('11.1.2.3', 'Doctrine\DBAL\Platforms\SQLAnywhere11Platform'),
-            array('11.9.9.9', 'Doctrine\DBAL\Platforms\SQLAnywhere11Platform'),
-            array('12', 'Doctrine\DBAL\Platforms\SQLAnywhere12Platform'),
-            array('12.0', 'Doctrine\DBAL\Platforms\SQLAnywhere12Platform'),
-            array('12.0.0', 'Doctrine\DBAL\Platforms\SQLAnywhere12Platform'),
-            array('12.0.0.0', 'Doctrine\DBAL\Platforms\SQLAnywhere12Platform'),
-            array('12.1.2.3', 'Doctrine\DBAL\Platforms\SQLAnywhere12Platform'),
-            array('12.9.9.9', 'Doctrine\DBAL\Platforms\SQLAnywhere12Platform'),
-            array('13', 'Doctrine\DBAL\Platforms\SQLAnywhere12Platform'),
-            array('14', 'Doctrine\DBAL\Platforms\SQLAnywhere12Platform'),
-            array('15', 'Doctrine\DBAL\Platforms\SQLAnywhere12Platform'),
-            array('15.9.9.9', 'Doctrine\DBAL\Platforms\SQLAnywhere12Platform'),
-            array('16', 'Doctrine\DBAL\Platforms\SQLAnywhere16Platform'),
-            array('16.0', 'Doctrine\DBAL\Platforms\SQLAnywhere16Platform'),
-            array('16.0.0', 'Doctrine\DBAL\Platforms\SQLAnywhere16Platform'),
-            array('16.0.0.0', 'Doctrine\DBAL\Platforms\SQLAnywhere16Platform'),
-            array('16.1.2.3', 'Doctrine\DBAL\Platforms\SQLAnywhere16Platform'),
-            array('16.9.9.9', 'Doctrine\DBAL\Platforms\SQLAnywhere16Platform'),
-            array('17', 'Doctrine\DBAL\Platforms\SQLAnywhere16Platform'),
-        );
+        return [
+            ['16', SQLAnywherePlatform::class],
+            ['16.0', SQLAnywherePlatform::class],
+            ['16.0.0', SQLAnywherePlatform::class],
+            ['16.0.0.0', SQLAnywherePlatform::class],
+            ['16.1.2.3', SQLAnywherePlatform::class],
+            ['16.9.9.9', SQLAnywherePlatform::class],
+            ['17', SQLAnywherePlatform::class],
+        ];
     }
 
     protected function getExceptionConversionData()
diff --git a/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywhere11PlatformTest.php b/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywhere11PlatformTest.php
deleted file mode 100644
index c59a9b1ac12..00000000000
--- a/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywhere11PlatformTest.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-namespace Doctrine\Tests\DBAL\Platforms;
-
-use Doctrine\DBAL\Platforms\SQLAnywhere11Platform;
-
-class SQLAnywhere11PlatformTest extends SQLAnywherePlatformTest
-{
-    /**
-     * @var \Doctrine\DBAL\Platforms\SQLAnywhere11Platform
-     */
-    protected $_platform;
-
-    public function createPlatform()
-    {
-        return new SQLAnywhere11Platform;
-    }
-
-    public function testDoesNotSupportRegexp()
-    {
-        $this->markTestSkipped('This version of the platform now supports regular expressions.');
-    }
-
-    public function testGeneratesRegularExpressionSQLSnippet()
-    {
-        self::assertEquals('REGEXP', $this->_platform->getRegexpExpression());
-    }
-}
diff --git a/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywhere12PlatformTest.php b/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywhere12PlatformTest.php
deleted file mode 100644
index 4c6763ae124..00000000000
--- a/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywhere12PlatformTest.php
+++ /dev/null
@@ -1,143 +0,0 @@
-<?php
-
-namespace Doctrine\Tests\DBAL\Platforms;
-
-use Doctrine\DBAL\Platforms\SQLAnywhere12Platform;
-use Doctrine\DBAL\Schema\Index;
-use Doctrine\DBAL\Schema\Sequence;
-
-class SQLAnywhere12PlatformTest extends SQLAnywhere11PlatformTest
-{
-    /**
-     * @var \Doctrine\DBAL\Platforms\SQLAnywhere12Platform
-     */
-    protected $_platform;
-
-    public function createPlatform()
-    {
-        return new SQLAnywhere12Platform;
-    }
-
-    public function testDoesNotSupportSequences()
-    {
-        $this->markTestSkipped('This version of the platform now supports sequences.');
-    }
-
-    public function testSupportsSequences()
-    {
-        self::assertTrue($this->_platform->supportsSequences());
-    }
-
-    public function testGeneratesSequenceSqlCommands()
-    {
-        $sequence = new Sequence('myseq', 20, 1);
-        self::assertEquals(
-            'CREATE SEQUENCE myseq INCREMENT BY 20 START WITH 1 MINVALUE 1',
-            $this->_platform->getCreateSequenceSQL($sequence)
-        );
-        self::assertEquals(
-            'ALTER SEQUENCE myseq INCREMENT BY 20',
-            $this->_platform->getAlterSequenceSQL($sequence)
-        );
-        self::assertEquals(
-            'DROP SEQUENCE myseq',
-            $this->_platform->getDropSequenceSQL('myseq')
-        );
-        self::assertEquals(
-            'DROP SEQUENCE myseq',
-            $this->_platform->getDropSequenceSQL($sequence)
-        );
-        self::assertEquals(
-            "SELECT myseq.NEXTVAL",
-            $this->_platform->getSequenceNextValSQL('myseq')
-        );
-        self::assertEquals(
-            'SELECT sequence_name, increment_by, start_with, min_value FROM SYS.SYSSEQUENCE',
-            $this->_platform->getListSequencesSQL(null)
-        );
-    }
-
-    public function testGeneratesDateTimeTzColumnTypeDeclarationSQL()
-    {
-        self::assertEquals(
-            'TIMESTAMP WITH TIME ZONE',
-            $this->_platform->getDateTimeTzTypeDeclarationSQL(array(
-                'length' => 10,
-                'fixed' => true,
-                'unsigned' => true,
-                'autoincrement' => true
-            ))
-        );
-    }
-
-    public function testHasCorrectDateTimeTzFormatString()
-    {
-        self::assertEquals('Y-m-d H:i:s.uP', $this->_platform->getDateTimeTzFormatString());
-    }
-
-    public function testInitializesDateTimeTzTypeMapping()
-    {
-        self::assertTrue($this->_platform->hasDoctrineTypeMappingFor('timestamp with time zone'));
-        self::assertEquals('datetime', $this->_platform->getDoctrineTypeMapping('timestamp with time zone'));
-    }
-
-    public function testGeneratesCreateIndexWithAdvancedPlatformOptionsSQL()
-    {
-        self::assertEquals(
-            'CREATE VIRTUAL UNIQUE CLUSTERED INDEX fooindex ON footable (a, b) WITH NULLS NOT DISTINCT FOR OLAP WORKLOAD',
-            $this->_platform->getCreateIndexSQL(
-                new Index(
-                    'fooindex',
-                    array('a', 'b'),
-                    true,
-                    false,
-                    array('virtual', 'clustered', 'with_nulls_not_distinct', 'for_olap_workload')
-                ),
-                'footable'
-            )
-        );
-        self::assertEquals(
-            'CREATE VIRTUAL CLUSTERED INDEX fooindex ON footable (a, b) FOR OLAP WORKLOAD',
-            $this->_platform->getCreateIndexSQL(
-                new Index(
-                    'fooindex',
-                    array('a', 'b'),
-                    false,
-                    false,
-                    array('virtual', 'clustered', 'with_nulls_not_distinct', 'for_olap_workload')
-                ),
-                'footable'
-            )
-        );
-
-        // WITH NULLS NOT DISTINCT clause not available on primary indexes.
-        self::assertEquals(
-            'ALTER TABLE footable ADD PRIMARY KEY (a, b)',
-            $this->_platform->getCreateIndexSQL(
-                new Index(
-                    'fooindex',
-                    array('a', 'b'),
-                    false,
-                    true,
-                    array('with_nulls_not_distinct')
-                ),
-                'footable'
-            )
-        );
-
-        // WITH NULLS NOT DISTINCT clause not available on non-unique indexes.
-        self::assertEquals(
-            'CREATE INDEX fooindex ON footable (a, b)',
-            $this->_platform->getCreateIndexSQL(
-                new Index(
-                    'fooindex',
-                    array('a', 'b'),
-                    false,
-                    false,
-                    array('with_nulls_not_distinct')
-                ),
-                'footable'
-            )
-        );
-    }
-}
diff --git a/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywhere16PlatformTest.php b/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywhere16PlatformTest.php
deleted file mode 100644
index c66bb5177ab..00000000000
--- a/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywhere16PlatformTest.php
+++ /dev/null
@@ -1,79 +0,0 @@
-<?php
-
-namespace Doctrine\Tests\DBAL\Platforms;
-
-use Doctrine\DBAL\Platforms\SQLAnywhere16Platform;
-use Doctrine\DBAL\Schema\Index;
-
-class SQLAnywhere16PlatformTest extends SQLAnywhere12PlatformTest
-{
-    public function createPlatform()
-    {
-        return new SQLAnywhere16Platform;
-    }
-
-    public function testGeneratesCreateIndexWithAdvancedPlatformOptionsSQL()
-    {
-        self::assertEquals(
-            'CREATE UNIQUE INDEX fooindex ON footable (a, b) WITH NULLS DISTINCT',
-            $this->_platform->getCreateIndexSQL(
-                new Index(
-                    'fooindex',
-                    array('a', 'b'),
-                    true,
-                    false,
-                    array('with_nulls_distinct')
-                ),
-                'footable'
-            )
-        );
-
-        // WITH NULLS DISTINCT clause not available on primary indexes.
-        self::assertEquals(
-            'ALTER TABLE footable ADD PRIMARY KEY (a, b)',
-            $this->_platform->getCreateIndexSQL(
-                new Index(
-                    'fooindex',
-                    array('a', 'b'),
-                    false,
-                    true,
-                    array('with_nulls_distinct')
-                ),
-                'footable'
-            )
-        );
-
-        // WITH NULLS DISTINCT clause not available on non-unique indexes.
-        self::assertEquals(
-            'CREATE INDEX fooindex ON footable (a, b)',
-            $this->_platform->getCreateIndexSQL(
-                new Index(
-                    'fooindex',
-                    array('a', 'b'),
-                    false,
-                    false,
-                    array('with_nulls_distinct')
-                ),
-                'footable'
-            )
-        );
-
-        parent::testGeneratesCreateIndexWithAdvancedPlatformOptionsSQL();
-    }
-
-    public function testThrowsExceptionOnInvalidWithNullsNotDistinctIndexOptions()
-    {
-        $this->expectException('UnexpectedValueException');
-
-        $this->_platform->getCreateIndexSQL(
-            new Index(
-                'fooindex',
-                array('a', 'b'),
-                false,
-                false,
-                array('with_nulls_distinct', 'with_nulls_not_distinct')
-            ),
-            'footable'
-        );
-    }
-}
diff --git a/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywherePlatformTest.php b/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywherePlatformTest.php
index 0546017d956..28473a6bbac 100644
--- a/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywherePlatformTest.php
+++ b/tests/Doctrine/Tests/DBAL/Platforms/SQLAnywherePlatformTest.php
@@ -2,7 +2,6 @@
 
 namespace Doctrine\Tests\DBAL\Platforms;
 
-use Doctrine\DBAL\Connection;
 use Doctrine\DBAL\LockMode;
 use Doctrine\DBAL\Platforms\AbstractPlatform;
 use Doctrine\DBAL\Platforms\SQLAnywherePlatform;
@@ -12,6 +11,7 @@
 use Doctrine\DBAL\Schema\Comparator;
 use Doctrine\DBAL\Schema\ForeignKeyConstraint;
 use Doctrine\DBAL\Schema\Index;
+use Doctrine\DBAL\Schema\Sequence;
 use Doctrine\DBAL\Schema\Table;
 use Doctrine\DBAL\Schema\TableDiff;
 use Doctrine\DBAL\Schema\UniqueConstraint;
@@ -465,18 +465,121 @@ public function testCannotGenerateCustomConstraintWithCreateConstraintSQL()
     public function testGeneratesCreateIndexWithAdvancedPlatformOptionsSQL()
     {
         self::assertEquals(
-            'CREATE VIRTUAL UNIQUE CLUSTERED INDEX fooindex ON footable (a, b) FOR OLAP WORKLOAD',
+            'CREATE UNIQUE INDEX fooindex ON footable (a, b) WITH NULLS DISTINCT',
             $this->_platform->getCreateIndexSQL(
                 new Index(
                     'fooindex',
-                    array('a', 'b'),
+                    ['a', 'b'],
                     true,
                     false,
-                    array('virtual', 'clustered', 'for_olap_workload')
+                    ['with_nulls_distinct']
                 ),
                 'footable'
             )
         );
+
+        // WITH NULLS DISTINCT clause not available on primary indexes.
+        self::assertEquals(
+            'ALTER TABLE footable ADD PRIMARY KEY (a, b)',
+            $this->_platform->getCreateIndexSQL(
+                new Index(
+                    'fooindex',
+                    ['a', 'b'],
+                    false,
+                    true,
+                    ['with_nulls_distinct']
+                ),
+                'footable'
+            )
+        );
+
+        // WITH NULLS DISTINCT clause not available on non-unique indexes.
+        self::assertEquals(
+            'CREATE INDEX fooindex ON footable (a, b)',
+            $this->_platform->getCreateIndexSQL(
+                new Index(
+                    'fooindex',
+                    ['a', 'b'],
+                    false,
+                    false,
+                    ['with_nulls_distinct']
+                ),
+                'footable'
+            )
+        );
+
+        self::assertEquals(
+            'CREATE VIRTUAL UNIQUE CLUSTERED INDEX fooindex ON footable (a, b) WITH NULLS NOT DISTINCT FOR OLAP WORKLOAD',
+            $this->_platform->getCreateIndexSQL(
+                new Index(
+                    'fooindex',
+                    ['a', 'b'],
+                    true,
+                    false,
+                    ['virtual', 'clustered', 'with_nulls_not_distinct', 'for_olap_workload']
+                ),
+                'footable'
+            )
+        );
+        self::assertEquals(
+            'CREATE VIRTUAL CLUSTERED INDEX fooindex ON footable (a, b) FOR OLAP WORKLOAD',
+            $this->_platform->getCreateIndexSQL(
+                new Index(
+                    'fooindex',
+                    ['a', 'b'],
+                    false,
+                    false,
+                    ['virtual', 'clustered', 'with_nulls_not_distinct', 'for_olap_workload']
+                ),
+                'footable'
+            )
+        );
+
+        // WITH NULLS NOT DISTINCT clause not available on primary indexes.
+        self::assertEquals(
+            'ALTER TABLE footable ADD PRIMARY KEY (a, b)',
+            $this->_platform->getCreateIndexSQL(
+                new Index(
+                    'fooindex',
+                    ['a', 'b'],
+                    false,
+                    true,
+                    ['with_nulls_not_distinct']
+                ),
+                'footable'
+            )
+        );
+
+        // WITH NULLS NOT DISTINCT clause not available on non-unique indexes.
+        self::assertEquals(
+            'CREATE INDEX fooindex ON footable (a, b)',
+            $this->_platform->getCreateIndexSQL(
+                new Index(
+                    'fooindex',
+                    ['a', 'b'],
+                    false,
+                    false,
+                    ['with_nulls_not_distinct']
+                ),
+                'footable'
+            )
+        );
+    }
+
+    public function testThrowsExceptionOnInvalidWithNullsNotDistinctIndexOptions()
+    {
+        $this->expectException('UnexpectedValueException');
+
+        $this->_platform->getCreateIndexSQL(
+            new Index(
+                'fooindex',
+                ['a', 'b'],
+                false,
+                false,
+                ['with_nulls_distinct', 'with_nulls_not_distinct']
+            ),
+            'footable'
+        );
     }
 
     public function testDoesNotSupportIndexDeclarationInCreateAlterTableStatements()
@@ -586,19 +689,28 @@ public function testGeneratesSQLSnippets()
         );
     }
 
-    public function testDoesNotSupportRegexp()
+    public function testHasCorrectDateTimeTzFormatString()
     {
-        $this->expectException('\Doctrine\DBAL\DBALException');
+        self::assertEquals('Y-m-d H:i:s.uP', $this->_platform->getDateTimeTzFormatString());
+    }
 
-        $this->_platform->getRegexpExpression();
+    public function testGeneratesDateTimeTzColumnTypeDeclarationSQL()
+    {
+        self::assertEquals(
+            'TIMESTAMP WITH TIME ZONE',
+            $this->_platform->getDateTimeTzTypeDeclarationSQL([
+                'length' => 10,
+                'fixed' => true,
+                'unsigned' => true,
+                'autoincrement' => true,
+            ])
+        );
     }
 
-    public function testHasCorrectDateTimeTzFormatString()
+    public function testInitializesDateTimeTzTypeMapping()
     {
-        // Date time type with timezone is not supported before version 12.
-        // For versions before we have to ensure that the date time with timezone format
-        // equals the normal date time format so that it corresponds to the declaration SQL equality (datetimetz -> datetime).
-        self::assertEquals($this->_platform->getDateTimeFormatString(), $this->_platform->getDateTimeTzFormatString());
+        self::assertTrue($this->_platform->hasDoctrineTypeMappingFor('timestamp with time zone'));
+        self::assertEquals('datetime', $this->_platform->getDoctrineTypeMapping('timestamp with time zone'));
     }
 
     public function testHasCorrectDefaultTransactionIsolationLevel()
@@ -749,7 +861,41 @@ public function testSupportsGettingAffectedRows()
 
     public function testDoesNotSupportSequences()
     {
-        self::assertFalse($this->_platform->supportsSequences());
+        self::markTestSkipped('This version of the platform now supports sequences.');
+    }
+
+    public function testSupportsSequences()
+    {
+        self::assertTrue($this->_platform->supportsSequences());
+    }
+
+    public function testGeneratesSequenceSqlCommands()
+    {
+        $sequence = new Sequence('myseq', 20, 1);
+        self::assertEquals(
+            'CREATE SEQUENCE myseq INCREMENT BY 20 START WITH 1 MINVALUE 1',
+            $this->_platform->getCreateSequenceSQL($sequence)
+        );
+        self::assertEquals(
+            'ALTER SEQUENCE myseq INCREMENT BY 20',
+            $this->_platform->getAlterSequenceSQL($sequence)
+        );
+        self::assertEquals(
+            'DROP SEQUENCE myseq',
+            $this->_platform->getDropSequenceSQL('myseq')
+        );
+        self::assertEquals(
+            'DROP SEQUENCE myseq',
+            $this->_platform->getDropSequenceSQL($sequence)
+        );
+        self::assertEquals(
+            'SELECT myseq.NEXTVAL',
+            $this->_platform->getSequenceNextValSQL('myseq')
+        );
+        self::assertEquals(
+            'SELECT sequence_name, increment_by, start_with, min_value FROM SYS.SYSSEQUENCE',
+            $this->_platform->getListSequencesSQL(null)
+        );
     }
 
     public function testDoesNotSupportInlineColumnComments()