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produce
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Using
Enable -2nd
Ed.
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contains
700 pages.
Que
books can
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To order directly
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call
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SQL:
The Structured
Query
Language
By
Dr. Carolyn
J. Hursch
& Dr. Jack
L.
Hursch
Recently
a
need has
developed
for a
I lexible data-
base language
that
is user -friendly
enough
for the cas-
ual user,
yet powerful
enough
for
the programmer
and
applications
builder.
SQL
has been
developed
by IBM
to
fill that
need.
Because
of
its ingenious
Query
-by-
Example
feature,
SQL
is learned
and
understood
easily
by novices.
It is
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SQL
THE STRUCTURED
QUERY
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98
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The book
presents
the complete
picture
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SQL.
Although
aimed toward
computer
science profession-
als,
its hands -on approach,
with many examples
of
each concept,
make
the book equally
appropriate
for
database
operators
who
simply
want
to understand
and
use
SQL. Since
SQL is
rapidly becoming
a part
of
current
research
into artificial
intelligence
applications,
its use in knowledge
bases
and expert
systems
will
also be explained.
A further
sampling
of topics
in-
cludes:
the components
of SQL,
data definition
state-
ments
(DDS), data
control
statements (DCS),
aggre-
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functions, SQL
at
work,
table
expressions
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predicates, data
manipulation
statements
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logi-
cal connectives,
subqueries,
views, indices, and que-
ries, relational
algebra
and SQL,
logic and SQL,
rela-
tional calculus
and SQL, embedded
SQL.
Exercises
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A complete
bibliography
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many
sources of
further read-
ing for those
who become
interested
in particular
top-
ics,
and an index
makes finding
information
in the
book
simple and quick.
SQL:
The Structured
Query
Language,
order No.
3016, costs
$18.95, and
contains
200 pages. You can
order
from Tab
Professional
and Reference
Books,
Division
of Tab Books
Inc., Blue
Ridge Summit,
PA
17294 -0850;
Tel.
717 /794
-2191.
Communications
Receivers:
Principles &
Design
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Rohde
&
T.T.N.
Bucher
A "one-
stop" guide
to the
theory and
design of all
types
of communications
receivers
-short -wave,
mili-
tary, broadcast
(AM -FM),
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