After completing this lesson, you should be able todo the following:
Create materialized views
Refresh materialized views
Create nested materialized views
Create UNION ALL materialized views
Explain the use of query rewrites
Enable and control query rewrites
Grammar in use is a textbook for intermediate students of English who need to study and practice using of the language of the language. It can be used as a classroom text or for slef- study. It wil be especially useful where, in the teacher's view, existing course materials do not provide adequate coverage of grammar.
The title of this standard should not be taken to imply that all of the materials
quoted are necessarily used solely or even principally in building.
This schedule was first published in 1935 as an attempt to provide a solution to
the problems which had arisen through structural and other calculations being
based on different data for the weights of materials concerned. The 1949 revision
was undertaken with a view to making the information more complete by the
inclusion of certain extra materials, together with such changes in the data as
had been found to be necessary....
Actually different types of classifiers can be set for BCI technology, from
physiological point of view BCI devices may be classified in exogenous and endogenous. the
external devices to provide some kind of stimulation to users and use them to analyze the
respond to them, an example of this class of devices based on evoked potentials or P300 pictures
(KM Spencer and E. Donchin and R. Wijesinghe, 2000).
The committee was tasked to determine the best instrumentation and
procedures for measuring BFD (see Box S-1). To do this, it reviewed technical
specifications, viewed demonstrations of the operation and use of current and
prospective systems, and evaluated factors such as human handling variability,
process transparency, and software variability judgment.
The committee found that given the current clay variation, a measurement
precision (standard deviation) of 0.5 mm is sufficient; instruments featuring
greater precision add little practical value to the testing process.
When a user with read-only permission logs into the database server, he or she is able to see the
geodatabase and the data stored in it. This user can query the database and use the data in ArcMap but
cannot edit the data (unless the user is granted read/write permissions on specific datasets. Dataset
permissions are discussed in the next section).
Users granted read/write geodatabase-wide permissions cannot only view and query the data but can also
edit all data in the geodatabase.
Microsoft Office 2007 is the latest-and-greatest version of a long line of versions, starting (not surprisingly) with Version 1. Not that this is
the 2,007th version. Somewhere along the way Microsoft switched from using sequential numbers for versions to using years. publishing industry helped her establish a good foundation for
developing content for instructional use. Connie became interested
in technology when the Radio Shack TRS80 was introduced, and that’s when she
began writing her own material and training others to use computers.
Enormous number of books, reviews and original papers concerning engineering
applications of heat transfer has already been published and numerous new
publications appear every year due to exceptionally wide list of objects and processes
that require to be considered with a view to thermal energy redistribution. All the
three mechanisms of heat transfer (conduction, convection and radiation) contribute to
energy redistribution, however frequently the dominant mechanism can be singled
An Introduction to the Study of Mineralogy is a collection of papers that can be easily understood by a wide variety of readers, whether they wish to use it in their work, or simply to extend their knowledge. It is unique in that it presents a broad view of the mineralogy field. The book is intended for chemists, physicists, engineers, and the students of geology, geophysics, and soil science, but it will also be invaluable to the more advanced students of mineralogy who are looking for a concise revision guide....
PowerPoint is the program that helps you sell your message. PowerPoint is a presentation program that
can create beautiful slideshows with text, images, audio and video, and it is also the program that is used if
you have to make transparencies for the overhead projector.
PowerPoint is the program in Office 2007 that is easiest to learn. You can instantly create nice-looking
material for your sales pitch, your lecture or the screen in your shop window.PowerPoint can do much of
the work for you, so you can concentrate on formulating your messages properly....
There is no general consensus on how to define various risk-related terms, including the term
“risk” itself, and people may have different views on how those terms apply to their particular
organization. Both fund boards and advisers would benefit from establishing a common
understanding of the terms and concepts they use in risk-related discussions, as well as how they
apply to their funds. Some advisers include definitions or descriptions of how they view risk and
risk management in their board presentations.
The ‘ideology’ of professional regulation can be viewed not simply as a mask for the
profession’ s activities but is implicated in the conditions that make accountancy possible. The
discourses that surround professions and are promoted by professionals are understood to
form an integral part of the social practices that facilitate, maintain and promote the
Early relational systems used indices as table replicas that allowed
vertical partitioning, allowed associative search, and allowed con-
venient data ordering. Database optimizers and executors use
semi-join on these structures to run common queries on covering
indices. These query strategies give huge speedups.
These early ideas evolved to materialized views (often maintained
by triggers) that went far beyond simple covering indices and
provided fast access to star and snowflake schema. In...
The Oracle OLAP option is a full-featured on-line analytical processing (OLAP) server
embedded within the Oracle Database. The Oracle OLAP option can be used to improve SQL-
based business intelligence tools and applications by improving query performance and enriching
them with analytic content. As an OLAP solution that is deeply embedded in the Oracle
Database, the Oracle OLAP option allows centralized management of data and business rules in
a secure, scalable and enterprise-ready platform..
Scope of decision-making: Amajor factor is the scale at which query processing and viewmaterialization decisions
are made. At one extreme, all queries in the entire system are optimized together, using complete knowledge of the
available materialized views, resources, and network bandwidth constraints — this poses all of the challenges of
multi-query optimization plus a number of additional difﬁculties. In particular, work must be distributed globally
across many peers, and decisions must be made about when and where to materialize results for future use.
Extent of knowledge sharing: Related to the above problem is the question of how much knowledge is available
to the system during its query optimization process. In particular, the ﬁrst step in choosing a query evaluation strategy
is likely to be identifying which nodes have materialized views that can speed query processing. A simple technique
would be to use a centralized catalog of all available views and their locations, analogous to the central directory used
by Napster. Yet this model introduces a single point of failure and a potential scalability bottleneck.
Nanocomposites are at ractive to researchers both from practical and theoretical point
of view because of combination of special properties. Many eﬀ orts have been made in
the last two decades using novel nanotechnology and nanoscience knowledge in order
to get nanomaterials with determined functionality.
In most of the missions a mobile robot has to achieve – intervention in hostile environments,
preparation of military intervention, mapping, etc – two main tasks have to be completed:
navigation and 3D environment perception. Therefore, vision based solutions have been
widely used in autonomous robotics because they provide a large amount of information
useful for detection, tracking, pattern recognition and scene understanding. Nevertheless,
the main limitations of this kind of system are the limited field of view and the loss of the
This report is Part I of the larger project on Internet intermediaries. It develops a common definition and understanding of what Internet intermediaries are, of their economic function and economic models, of recent market developments, and discusses the economic and social uses that these actors satisfy. The overall goal of the horizontal report of the Committee for Information, Computer and Communications Policy (ICCP) is to obtain a comprehensive view of Internet intermediaries, their economic and social function, development and prospects, benefits and costs, and responsibilities.
Wisdom is applied experiential knowledge—knowledge beyond intel-
lect—based on an unobstructed, unfiltered view of how things are. It
is founded on the ability to accept things as they are as a starting point
for meaningful, useful action. This ability to accept things as they are
is enabled by working from one’s “center”—that calm, objective place
from which action flows in a way that is perfectly appropriate to the
situation at hand.
Everyone can experience a sense of inner peace. Everyone has the
ability to take a step back to see things objectively.