Replaced DB methods _error_message() and _error_number() with error() (issue #1097)
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index cece286..cf139bc 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -54,7 +54,8 @@
    -  MySQLi driver now supports persistent connections when running on PHP >= 5.3.
    -  Added dsn if the group connections in the config use PDO or any driver which need DSN.
    -  Improved PDO database support.
-   -  An optional database name parameter was added db_select().
+   -  Added an optional database name parameter to db_select().
+   -  Replaced the _error_message() and _error_number() methods with error(), that returns an array containing the last database error code and message.
 
 -  Libraries
 
@@ -116,13 +117,13 @@
 -  Fixed a bug (#81) - ODBC's list_fields() and field_data() methods skipped the first column due to odbc_field_*() functions' index starting at 1 instead of 0.
 -  Fixed a bug (#129) - ODBC's num_rows() returned -1 in some cases, due to not all subdrivers supporting the odbc_num_rows() function.
 -  Fixed a bug (#153) - E_NOTICE being generated by getimagesize() in the :doc:`File Uploading Library <libraries/file_uploading>`.
--  Fixed a bug (#611) - SQLSRV's _error_message() and _error_number() methods used to issue warnings when there's no actual error.
+-  Fixed a bug (#611) - SQLSRV's error handling methods used to issue warnings when there's no actual error.
 -  Fixed a bug (#1036) - is_write_type() method in the :doc:`Database Library <database/index>` didn't return TRUE for RENAME and OPTIMIZE queries.
 -  Fixed a bug in PDO's _version() method where it used to return the client version as opposed to the server one.
 -  Fixed a bug in PDO's insert_id() method where it could've failed if it's used with Postgre versions prior to 8.1.
 -  Fixed a bug in CUBRID's affected_rows() method where a connection resource was passed to cubrid_affected_rows() instead of a result.
 -  Fixed a bug (#638) - db_set_charset() ignored its arguments and always used the configured charset and collation instead.
--  Fixed a bug (#413) - Oracle's _error_message() and _error_number() methods used to only return connection-related errors.
+-  Fixed a bug (#413) - Oracle's error handling methods used to only return connection-related errors.
 -  Fixed a bug (#804) - Profiler library was trying to handle objects as strings in some cases, resulting in warnings being issued by htmlspecialchars().
 -  Fixed a bug (#1101) - MySQL/MySQLi result method field_data() was implemented as if it was handling a DESCRIBE result instead of the actual result set.
 -  Fixed a bug in Oracle's :doc:`Database Forge Class <database/forge>` method _create_table() where it failed with AUTO_INCREMENT as it's not supported.