Parameter-sensitive plans for structural scenarios

Data processing: database and file management or data structures – Database and file access – Query optimization

Reexamination Certificate

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C707S637000, C707S713000, C707S714000, C707S715000, C707S716000, C707S717000, C707S719000, C707S720000, C707S721000, C707S600000

Reexamination Certificate

active

07933894

ABSTRACT:
Systems and methods that generate specialized plans for compiling SQL queries. A plan generator component scans the query representation for parameter sensitive predicates and evaluates each predicate individually based on the parameter values. Accordingly, queries can be identified not only based on their structures, but also based on their parameter conditions. The specialized plans are more efficient for particular values, wherein queries that employ such values are optimally executed.

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