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Database tuning describes a group of activities used to optimize and homogenize the performance of a database.It usually overlaps with query tuning, but refers to design of the database files, selection of the database management system (DBMS) application, and configuration of the database's environment (operating system, CPU, etc.).
The performance of a query plan is determined largely by the order in which the tables are joined. For example, when joining 3 tables A, B, C of size 10 rows, 10,000 rows, and 1,000,000 rows, respectively, a query plan that joins B and C first can take several orders-of-magnitude more time to execute than one that joins A and C first.
An SQL select statement and its result. In computing, a database is an organized collection of data or a type of data store based on the use of a database management system (DBMS), the software that interacts with end users, applications, and the database itself to capture and analyze the data.
This article discusses a set of tactics useful in software testing.It is intended as a comprehensive list of tactical approaches to software quality assurance (more widely colloquially known as quality assurance (traditionally called by the acronym "QA")) and general application of the test method (usually just called "testing" or sometimes "developer testing").
Oracle Corporation is an American multinational computer technology company headquartered in Austin, Texas. [5] Co-founded in 1977 in Santa Clara, California, by Larry Ellison, who remains executive chairman, Oracle was the third-largest software company in the world in 2020 by revenue and market capitalization. [6]
Caligula was born in Antium on 31 August AD 12, the third of six surviving children of Germanicus and his wife and second cousin, Agrippina the Elder.Germanicus was a grandson of Mark Antony, and Agrippina was the daughter of Marcus Vipsanius Agrippa and Julia the Elder, making her the granddaughter of Augustus. [5]
between 2008 and 2012, better performance than 88% of all directors The Stephen K. Roddenberry Stock Index From January 2008 to December 2012, if you bought shares in companies when Stephen K. Roddenberry joined the board, and sold them when he left, you would have a 42.9 percent return on your investment, compared to a -2.8 percent return from ...
Mary Kate Blake [1] (born June 18, 1989), known by her maiden name Mary Kate Morrissey, is an American stage actress.Born in Pennsylvania, Morrissey began her career when she starred as Sheila in the musical Hair and Janis in the Mean Girls musical.