17
E
Use of Language Practice
i
Match words (1-10) to their synonyms (a-j)
1.
concurrency
2.
backup
3.
rollback
4.
logging
5.
query language
6.
overhead
7.
iteration
8.
economy
of
scale
a
a proportionate saving in costs gained by an increased level of
production
b
in computer science, it is generally considered
any combination of
excess or indirect computation time, memory, bandwidth, or other
resources that are required
to attain a particular goal
c
repetition of a mathematical or computational procedure applied to the
result of a previous application
d
the procedure for making copies of data in case
the original is lost or
damaged
e
the ability of a database to allow multiple users to affect multiple
transactions.
f
just a fancy word to define a process of writing down everything you do
g
the process of restoring a database or program to a previously defined
state, typically to
recover from an error
h
a language for the specification of procedures for the retrieval (and
sometimes also modification) of information from a database
ii
Use the words from the table to complete the following sentences.
Consider correct grammar use.
1.
In database technologies, a ________ is an operation which returns
the database to some
previous state. They are important for database integrity, because they mean that the
database can be restored to a clean copy even after erroneous operations are performed.
2.
All small island developing states lack the ___________ to overcome
their vulnerabilities
on their own.
3.
SXPath may be used as a ___________ for an XML-based digital library.
4.
___________ enables refinement of the work product through encouraging brief returns to
previous steps.
5.
Make a _________ of any work you do on the computer.
6.
_____________ is keeping a record of all data input, processes, data output, and final results
in a program
7.
The ability to offer __________ is unique to databases.
8.
For example, maintaining an audit trail might result in 10% _________, meaning that the
program will run 10% slower when the audit trail is turned on.
