Database execution cost and system performance estimator

Details Database execution cost and system performance estimator Database execution cost and system performance estimator

1996-05-10

1998-03-31

Black, Thomas G.

395616, G06F 1730

Patent

active

057348847

ABSTRACT:
The software tool of this invention estimates the costs of an application program accessing a database. These costs may be execution costs of the application or of a transaction, SQL statement, and/or a utility. Execution costs include CPU time, I/O time and minimum elapsed time. For estimating the execution costs, the tool receives simplified and partial definitions of tables, utilities, SQL statements, transactions, and applications. The estimator tool requires only a minimal amount of information to calculate the various execution costs.

REFERENCES:
patent: 5091852 (1992-02-01), Tsuchida et al.
patent: 5412806 (1995-05-01), Du et al.
Duppel, N., "Modeling and Optimization of Complex Database Queries in a Shared-Nothing System", IEEE, pp. 52-59, Jan. 1991.
"CRYSTAL Product Family Demonstration", BGS Systems, Inc. (printout of a slide show provided by the applicant with PTO 1449), Dec. 1991.

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