On Optimizing an SQL-like Nested Query

  • Won Kim
  • Published 1982 in ACM Trans. Database Syst.

Abstract

SQL is a high-level nonprocedural data language which has received wide recognition in relational databases. One of the most interesting features of SQL is the nesting of query blocks to an arbitrary depth. An SQL-like query nested to an arbitrary depth is shown to be composed of five basic types of nesting. Four of them have not been well understood and… (More)
DOI: 10.1145/319732.319745

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