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Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Database Systems please help me answer this question I will give you a good rating Thank you!

Question 1: True or False Question Answer The external merge sort algorithm can be complete with as little as two buffer pages. We should avoid RR, WR, RW and WW conflicts in the schedule. To have better performance, we should increase the number of I/O.. Nested queries are costly, we should avoid them. Boyce-Codd Normal Form is the standard that every relation must satisfy BCNF. A relation must have at least one functional dependency. In a relational schema, one attribute can determine the type when inserting the data. The log files only exist on the disk.
Transcribed Image Text:Question 1: True or False Question Answer The external merge sort algorithm can be complete with as little as two buffer pages. We should avoid RR, WR, RW and WW conflicts in the schedule. To have better performance, we should increase the number of I/O.. Nested queries are costly, we should avoid them. Boyce-Codd Normal Form is the standard that every relation must satisfy BCNF. A relation must have at least one functional dependency. In a relational schema, one attribute can determine the type when inserting the data. The log files only exist on the disk.
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