Tutorial

LDL ⁺⁺ Tutorial
(For Version 5.1)
December 1998 Revision

Carlo Zaniolo Computer Science Department UCLA zaniolo@cs.ucla.edu

Acknowledgements
Several parts of this tutorial are based on a previous tutorial prepared by Shalom (Dick) Tsur. The sections on meta-predicates, external DBs, and foreign language functions are due to Natraj Arni, and Kayliang Ong. The sections on XY-stratification and user-defined aggregates are largely due to Haixun Wang.

Acknowledgements
Several parts of this tutorial are based on a previous tutorial prepared by Shalom (Dick) Tsur. The sections on meta-predicates, external DBs, and foreign language functions are due to Natraj Arni, and Kayliang Ong. The sections on XY-stratification and user-defined aggregates are largely due to Haixun Wang.

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