Method to help in optimizing a query from a relational data base management system
First Claim
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1. A method for displaying a query execution plan of a query for a relational database management system (RDBMS), said RDBMS being of the type that processes aspatial data only and having a screen display, said query execution plan comprising operations to be executed by said RDBMS, said operations being interconnected through links, said method comprising the steps of:
- generating information representative of said query execution plan, said information including at least one of operation names for said operations of the query execution plan, an option, and at least one characteristic of each said operation;
analyzing said information to determine said operation names, said options, said characteristics and said links; and
displaying on said screen display the operations in respective boxes, each of said boxes incorporating said operation name and corresponding options and characteristics, and the links between said boxes in a linear graphical form.
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Abstract
A method for assisting in optimization of a query from a relational data base management system is provided. The method includes constructing a tree on the basis of the search for the execution plan of the query written in the query language of the RDBMS, that is representative of the execution plan of the query, and representing the tree on a screen.
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Citations
22 Claims
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1. A method for displaying a query execution plan of a query for a relational database management system (RDBMS), said RDBMS being of the type that processes aspatial data only and having a screen display, said query execution plan comprising operations to be executed by said RDBMS, said operations being interconnected through links, said method comprising the steps of:
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generating information representative of said query execution plan, said information including at least one of operation names for said operations of the query execution plan, an option, and at least one characteristic of each said operation; analyzing said information to determine said operation names, said options, said characteristics and said links; and displaying on said screen display the operations in respective boxes, each of said boxes incorporating said operation name and corresponding options and characteristics, and the links between said boxes in a linear graphical form. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A tool for displaying a query execution plan of a query for a relational database management system (RDBMS), said RDBMS being of the type that processes aspatial data only and having a screen display, wherein the query execution plan comprises operations to be executed by the RDBMS, the operations being interconnected through links, said tool comprising:
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an input for receiving information representative of the query execution plan, said information including at least one of operation names for the operations of the query execution plan, an option and at least one characteristic of each of the operations; said tool having means for analyzing said information to determine said operation names, said options, said characteristics and said links; and means for displaying on the screen display the operations in respective boxes, each box incorporating said operation name and corresponding option and characteristics and the links between the boxes in linear graphical form. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification