Fix two bugs in Oracle Support

lib/Doctrine/DBAL/Driver/OCI8/OCI8Statement.php

@@ -40,7 +40,6 @@ class OCI8Statement implements \IteratorAggregate, Statement
         PDO::FETCH_BOTH => OCI_BOTH,
         PDO::FETCH_ASSOC => OCI_ASSOC,
         PDO::FETCH_NUM => OCI_NUM,
-        PDO::PARAM_LOB => OCI_B_BLOB,
         PDO::FETCH_COLUMN => OCI_NUM,
     );
     protected $_defaultFetchMode = PDO::FETCH_BOTH;

tests/Doctrine/Tests/DBAL/Functional/WriteTest.php

@@ -161,7 +161,7 @@ class WriteTest extends \Doctrine\Tests\DbalFunctionalTestCase
 
         $sequences = $this->_conn->getSchemaManager()->listSequences();
         $this->assertEquals(1, count(array_filter($sequences, function($sequence) {
-            return $sequence->getName() === 'write_table_id_seq';
+            return strtolower($sequence->getName()) === 'write_table_id_seq';
         })));
 
         $stmt = $this->_conn->query($this->_conn->getDatabasePlatform()->getSequenceNextValSQL('write_table_id_seq'));