C++ Qt ORM (Object Relational Mapping) and ODM library
Relational database replication tool based on XML Schema
ETL engine based on Groovy
CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle
RDF-based framework monitoring business systems activity
Data migration/conversion library based on STX and XSLT transformation
"Database to CSV" project stores/loads data between database and CSVs
Remote computer access through Android devices
Cross-platform C++ libraries with a network/internet focus.
Open source Extract Transform Load engine written in Java
Performance and stability