Method to help in optimizing a query from a relational data base management system, and resultant method of syntactical analysis
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United States of America Patent
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Feb 27, 1996
Grant Date -
N/A
app pub date -
Sep 29, 1993
filing date -
Oct 12, 1992
priority date (Note) -
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Abstract
The method for help in optimizing a query (10) in a window (24) of a screen of a work station consists of forming a tree (26) representative of the execution plan of the query, representing the tree on the screen (25), making a syntactical analysis of the query in order to form a syntactical graph, comparing the elements of the tree with those of the graph, and completing the tree with elements contained only in the graph. The advantageous result is a method of syntactical analysis consisting of analyzing the function of the RDBMS in order to determine in particular the types of nodes of the syntactical graph and preferably the information associated with these type of nodes.
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