Adminer vs DB2 Maestro

Adminer is web-based database management software distributed as a single PHP file. It supports MySQL, MariaDB, PostgreSQL, CockroachDB, SQLite, MS SQL, and Oracle; plugin drivers add Elasticsearch, SimpleDB, MongoDB, Redis, Firebird, ClickHouse, IGDB, and IMAP. Users can create and alter database structures, including tables, columns, indexes, foreign keys, views, procedures, functions, and triggers. The interface can search, sort, and limit table results, edit records, run SQL, review query history, and export to SQL or CSV. Listed database capabilities include generated columns and check constraints, MySQL events and partitions, and PostgreSQL schemas, sequences, and user types. Adminer requires a database password and rate-limits connection attempts. Its site recommends restricting public access, for example with IP whitelisting or web-server password protection, and keeping the software updated. Plugins can add options such as OTP or passkey login, SSL connections, SQL highlighting, and extra export formats. It supports PHP 5.3+, 7, and 8 with sessions enabled. Adminer is free for commercial and non-commercial use under either the Apache License or GPL 2.

DB2 Maestro has no write-up on Specifiction yet; its figures are above.