diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index 916ddeb..206924d 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -252,12 +252,16 @@
 			return $this->data_cache['version'];
 		}
 
-		if ( ! $this->conn_id OR ($version = oci_server_version($this->conn_id)) === FALSE)
+		if ( ! $this->conn_id OR ($version_string = oci_server_version($this->conn_id)) === FALSE)
 		{
 			return FALSE;
 		}
+		elseif (preg_match('#Release\s(\d+(?:\.\d+)+)#', $version_string, $match))
+		{
+			return $this->data_cache['version'] = $match[1];
+		}
 
-		return $this->data_cache['version'] = $version;
+		return FALSE;
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php b/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php
index d17e311..4791ab1 100644
--- a/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php
+++ b/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php
@@ -130,6 +130,29 @@
 	// --------------------------------------------------------------------
 
 	/**
+	 * Database version number
+	 *
+	 * @return	string
+	 */
+	public function version()
+	{
+		if (isset($this->data_cache['version']))
+		{
+			return $this->data_cache['version'];
+		}
+
+		$version_string = parent::version();
+		if (preg_match('#Release\s(?<version>\d+(?:\.\d+)+)#', $version_string, $match))
+		{
+			return $this->data_cache['version'] = $match[1];
+		}
+
+		return FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
 	 * Show table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index ab08c2f..3b832b3 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -27,6 +27,7 @@
 -  Fixed a bug (#4039) - :doc:`Session Library <libraries/sessions>` could generate multiple (redundant) warnings in case of a read failure with the 'files' driver, due to a bug in PHP.
 -  Fixed a bug where :doc:`Session Library <libraries/sessions>` didn't have proper error handling on PHP 5 (due to a PHP bug).
 -  Fixed a bug (#4312) - :doc:`Form Validation Library <libraries/form_validation>` didn't provide error feedback for failed validation on empty requests.
+-  Fixed a bug where :doc:`Database <database/index>` method `version()` returned banner text instead of only the version number with the 'oci8' and 'pdo/oci' drivers.
 
 Version 3.0.3
 =============