Which is better H2 or HSQLDB?

Question

HSQLDB 2.0 is soon to be released. I wonder if it will outperform H2 since, as far as I know, most users prefer H2 than HSQLDB. I am interested in the MVCC support of HSQLDB 2.0. I have learned that MVCC on H2 is still experimental. With regards to support/documentation, concurrency, performance, which is better between the two?

Answer 1

Both HyperSQL and H2 Database are fairly transparent, so testing may be the best approach to determine which is more suitable for a particular use. Comparisons involving one and the other are available. They share a common heritage, and both are open source.