Select from below ALL statements that are true. Select one or more: a. Adding locking and unlocking statements (in arbitrary ways) to transactions is sufficient to assure database consistency in concurrent schedules. b. A conflict serializable schedule assures database consistency. c. The "B" in "B+-tree" stands for "Binary". d. The search key field/attribute of a primary index for a table does NOT have to be the primary key of the table. e. If an index is a sparse index, it MUST BE a primary index. f. It is a good idea to allow ONLY SERIAL schedules because they guarantee database consistency.
Select from below ALL statements that are true. Select one or more: a. Adding locking and unlocking statements (in arbitrary ways) to transactions is sufficient to assure database consistency in concurrent schedules. b. A conflict serializable schedule assures database consistency. c. The "B" in "B+-tree" stands for "Binary". d. The search key field/attribute of a primary index for a table does NOT have to be the primary key of the table. e. If an index is a sparse index, it MUST BE a primary index. f. It is a good idea to allow ONLY SERIAL schedules because they guarantee database consistency.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
Select from below ALL statements that are true.
Select one or more:
a.
Adding locking and unlocking statements (in arbitrary ways) to transactions is sufficient to assure
b.
A conflict serializable schedule assures database consistency.
c.
The "B" in "B+-tree" stands for "Binary".
d.
The search key field/attribute of a primary index for a table does NOT have to be the primary key of the table.
e.
If an index is a sparse index, it MUST BE a primary index.
f.
It is a good idea to allow ONLY SERIAL schedules because they guarantee database consistency.
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