MySQL / PostgreSQL

SirixDB

SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.

Reactive SQL Client

High performance reactive SQL client written in Java

jOOQ

A jOOQ-CodeGenerator to create vertx-ified DAOs and POJOs.

Redis

Redis client for Vert.x