How To Prepare For Your MySQL 5.7 Upgrade
This tutorial will help you prepare to upgrade to MySQL 5.7 from earlier versions. It covers `sql_mode` with practical examples of query responses that get stricter. The tutorial also contains instructions for checking for warnings and errors, and contains a sample config file so you can test the new settings before upgrading. This article is from the [MySQL Team at Oracle](http://www.oracle.com/us/products/mysql/mysqlcommunityserver/overview/index.html).