Daytona and the fourth-generation language Cymbal

The Daytona(TM) data management system is used by AT&T to solve a wide spectrum of data management problems. For example, Daytona is managing a 4 terabyte data warehouse whose largest table contains over 10 billion rows. Daytona's architecture is based on translating its high-level query language Cymbal (which includes SQL as a subset) completely into C and then compiling that C into object code. The system resulting from this architecture is fast, powerful, easy to use and administer, reliable and open to UNIXTM tools. In particular, two forms of data compression plus robust horizontal partitioning enable Daytona to handle terabytes with ease.