Installation with sql server express edition

We ported WP to SQL Server almost three years and have been maintaining it ever since. Provided you are planning to use SQL Express 2012 or higher, this should be the solution you are looking for:

Project Nami

Simply put, replacing WPDB isn’t enough. So we went a step further and rewrote any MySQL-specific syntax within Core. Our primary reason for doing this was to take advantage of the native PaaS offerings from Azure. Over the past three years it has grown to include others who want to run WordPress but for reasons of policy, principle, or simple preference do not run MySQL. They range from SQL Server user groups to Fortune 100 companies looking to maximize investment in their current DBAs.