Please try, you’ll like it: https://github.com/igorkasyanchuk/rails_db has a major updates, such as:

0.6 - October 28, 2015

• better results if no results
• add truncate table
• add information about indexes
• fixed issue with helpers (thanks @losadaem)
• added delete for records (by PK)
• added information about primary key

0.5.1 - October 27, 2015

• removed log files and other garbage to reduce size of gem

0.5 - October 26, 2015

• added config.verify_access_proc to make possible enable access for users (for example current_user.admin?)
• small tweaks to rails_db_data_table and rails_db_data_sql
• other minor fixes
• working on documentation