Contact form 7 MSSQL database plugin. It Saves contact form 7 submissions to MSSQL (Microsoft SQL Server). No need any complex configuration.
It is not related to cfdb7 plugin. Delete CFDB7 plugin first then install this plugin. CF7 submissions table will reset automatically if you edit cf7 form. Submission data will delete if you delete or deactivate this plugin.
Contact Form 7 codes
Contact Form 7 MSSQL Database
How to install CFDB7-MSSQL plugin?
Download cfdb7-mssql.zip then upload to your wp-admin section and add MSSQL credential to cf7 forms (MS) > Switch database.
Just $69 for an unlimited installation license.