diff --git a/dibi/drivers/oracle.php b/dibi/drivers/oracle.php
index 6bac3140..78b75656 100644
--- a/dibi/drivers/oracle.php
+++ b/dibi/drivers/oracle.php
@@ -275,7 +275,7 @@ class DibiOracleDriver extends DibiObject implements IDibiDriver
 	 */
 	public function rowCount()
 	{
-		return oci_num_rows($this->resultSet);
+		throw new DibiDriverException('Row count is not available for unbuffered queries.');
 	}
 
 
diff --git a/dibi/libs/DibiDatabaseInfo.php b/dibi/libs/DibiDatabaseInfo.php
index caf62fad..13596e35 100644
--- a/dibi/libs/DibiDatabaseInfo.php
+++ b/dibi/libs/DibiDatabaseInfo.php
@@ -477,7 +477,7 @@ class DibiColumnInfo extends DibiObject
 	{
 		static $patterns = array(
 			'BYTE|COUNTER|SERIAL|INT|LONG' => dibi::FIELD_INTEGER,
-			'CURRENCY|REAL|MONEY|FLOAT|DOUBLE|DECIMAL|NUMERIC' => dibi::FIELD_FLOAT,
+			'CURRENCY|REAL|MONEY|FLOAT|DOUBLE|DECIMAL|NUMERIC|NUMBER' => dibi::FIELD_FLOAT,
 			'^TIME$' => dibi::FIELD_TIME,
 			'TIME' => dibi::FIELD_DATETIME, // DATETIME, TIMESTAMP
 			'YEAR|DATE' => dibi::FIELD_DATE,