
Data
V
alues
If
y
ou
use
QUER
Y
to
en
ter
a
v
alue
for
a
data
item
of
t
yp e
P
(pac
k
ed
decimal),
y
ou
should
b e
a
w
are
of
the
w
a
y
QUER
Y
handles
the
sign
of
the
v
alue.
A
dieren
t
co de
is
used
for
the
sign
of
a
v
alue
en
tered
with
a
plus
sign
than
for
a
v
alue
en
tered
without
a
sign.
Ho
w
ev
er,
when
QUER
Y
retrieves
unsigned
and
p ositiv e
t
yp e
P
data
items
with
the
same
v
alue,
they
are
considered
to
b e
equiv
alen
t.
F
or
example,
+2
and
2
are
equiv
alen
t.
Data
items
with
v
alues
+0,
0,
and
-0
are
also
equiv
alen
t.
Literals
When
sp ecifying
the
v
alue
of
a
particular
data
item,
y
ou
m
ust
sometimes
surround
the
v
alue
with
quotation
marks.
This
t
yp e
of
v
alue
is
called
a
literal.
A
c
haracter
or
string
literal
con
tains
alphan
umeric
c
haracters.
F
or
example:
"TANYA
OAKLEY"
"ZXR=93458273"
"3215"
Character
literals
con
taining
n
umeric
v
alues
of
the
t
yp es
listed
under
In
teger
or
Real
in
T
able
1-1
are
called,
more
sp ecically
,
n
umeric
literals.
F
or
example:
"5468"
"+408E-15"
"-16.73892"
Rules
for
using
quotation
marks
are
describ ed
with
the
commands
whic
h
allo w
or
require
their
use.
1-4
INTRODUCING
QUERY/V
Summary of Contents for QUERY
Page 10: ......
Page 17: ...Figure 1 1 ORDERS Data Base Structure Figure 1 2 Sample Entry Values INTRODUCING QUERY V 1 7 ...
Page 20: ...Figure 1 3 IMAGE QUERY Environments 1 10 INTRODUCING QUERY V ...
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Page 165: ...REPORT G1 GROUP TITLE 11 END QUERY V COMMANDS 3 129 ...
Page 199: ...XEQ TF TOTAL DUE 9 SPACE B2 SKIP A TF R0 70 E2 S PURCH DATE END QUERY V COMMANDS 3 163 ...
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Page 279: ...G ASCII CHARACTER SET This appendix is not available in this edition ASCII CHARACTER SET G 1 ...
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