home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Amiga Game-Power
/
Amiga Game-Power.iso
/
anwendungen
/
disk salv
/
bankn
/
banknq.doc
< prev
next >
Wrap
Text File
|
1994-05-20
|
13KB
|
265 lines
Query Instructions
The Query program will allow you to produce a report based on
your selection, sorting and formatting specifications. Upon
entry, you must use the Menu to open both a query command file
and a database. You may use the editor to build a customized
query command file or you may load a stored query command file.
Query command files are constructed by entering Select, Sort and
Report commands.
Upon opening a database, you will be presented with a data
dictionary. The data dictionary gives a list of data names that
can be used to display or print values contained in the database.
The SELECT command allows you to specify some selection criteria
to be used to determine which database entries will be included
in you output display or report. For example,
select
(payee = "Allstate" or "State Farm") and amount > 100.00"
specifies that the database is to be searched for Payees with the
name of "Allstate" or "State Farm" with an Amount > $100.00.
Note that the Select parameters contain parentheses to prevent
ambiguities. If there is a possibility that the key word or
phrase you are looking for contains occurrences with both upper
and lower case letters, you must check for both, e.g., "Allstate"
or "allstate". Another method is to use the wild character,
e.g., "?llstate".
The SORT command allows you to specify the sequence in which the
selected records are to be displayed or printed. For example,
sort:
date, payee
specifies that the selected database entries are to be sorted in
Payee sequence within Date. A maximum of five Sort fields may be
specified. Dates are automatically placed in the correct
sequence according to the year, e.g., "12/31/87" will be sorted
before "01/01/88".
The REPORT command allows you to specify the format of the output
display or report. For example,
report
date, col 13, type, col 18, payee, col 44, amount
specifies that the Date, Type, Payee and Amount for the selected
records are to be displayed. Further, it is specified that the
Date is to be displayed beginning in column 1, the Type in column
13, the Payee in column 18 and Amount in column 44. The Report
specification parameters may be very simple or very complex
depending upon the skill of the user. The Report specification
parameters can be classified as either describing "when to do it"
or "what to do".
When To Do It:
page_top - specifies that subsequent functions are to be
executed at the top each printed page or screen.
page_bottom - specifies that subsequent functions are to
the executed at the bottom of each printed page or
screen.
report_top - specifies that subsequent functions are to
be executed only at the beginning of the output report.
report_bottom - specifies that subsequent functions are
to executed only at the end of the report.
top(<data-name>) - specifies that subsequent functions
are to be executed after there has been a change in the
content of <data-name>. For example, top(Payee).
Normally, the specified data-name will be the same as
the sort sequence.
bottom(<data-name>) - specifies that subsequent
functions are to be executed before there is a change in
the content of data-name. For example, bottom(EC).
detail - specifies that the subsequent functions are to
be executed for each selected database entry.
What To Do:
print - specifies that all output is to be routed to the
printer. Default values for tm, bm and bod are set to
4, 8, and 54 respectively.
display - specifies that all output is to be routed to
the screen. "Display" is the output default. Default
values for tm, bm and bod are set to 0, 0, and 22
respectively.
tm nn - sets the top margin for the output display or
report to the value specified by nn.
bm nn - sets the bottom margin for the output display or
report to the value specified by nn.
bod nn - sets the body of the output display or report
to the value specified by nn. The sum of tm, bm and bod
must equal the desired page length.
<data-name> - causes the specified data name to be
printed or displayed. For example, "Payee" is a
data-name.
"literal" - causes the specified literal to be printed
or displayed. For example, "The result is:" is a
literal.
trim(<data-name>) - caused the specified data name to be
printed or displayed after all trailing spaces have been
eliminated. For example, "trim(Payee)".
total(<data-name>) - specifies that the summed value of
<data-name> is to be printed or displayed. An numeric
data item from the dictionary or a numeric literal must
be substituted for <data-name>. For example,
"total(amount)". "total(1)" can be used to provide a
count of the transactions.
cum(<data-name>) - same as "total" except that the
accumulator is not reset after displaying the total.
This function is used to produce a running balance.
spacer nn - causes nn spaces to be inserted between
output data items. The default is 1.
col nn - causes the next specified data item to be
displayed or printed in the column specified by nn.
skip n - causes n lines to be skipped before displaying
or printing the next data item. If n is not provided, 1
is assumed.
pause - causes a pause in the output process until a key
(any key) is depressed.
eject - if "print" has been specified, this command
causes the paper to be ejected to the top of the next
page; otherwise, the screen will be cleared.
EDITING MASKS
Numeric Editing Masks may be used to cause predefined
characters to be imbedded within displayed or printed
numeric items. Numeric items are identified in the data
dictionary with the character "n" following the data
name. The masks must be constructed as an alphanumeric
literal whose first character is "%". If the second
character of the mask literal is other than a numeric
character, that character will be placed in the next
left most position before the resulting edited numeric
value.
Examples:
Input Values Mask Output
01000 "%9,999" 1,000
25245 "%$99,999" $25,245
-5643 "%$999,999" $-5,643
Alphanumeric Editing Masks may be used to cause
predefined characters to be imbedded within displayed or
printed alphanumeric or date items. Alphanumeric items
are identified in the data dictionary with the character
"c" following the data name. Date items are identified
in the dictionary with the character "d" following the
data name. The mask must be constructed as an
alphanumeric literal whose first character is "%".
Examples:
Input Values Mask Output
123456789 "%@@@-@@-@@@@" 123-45-6789
102786 "%@@/@@/@@" 10/27/86
Here is an example of a more complex query construction:
select
(ec = "UE" or "UW" or "UP") and date = "????88" and type = "C"
sort
ec
report
print date "%@@/@@/@@" payee ec amount "%9,999,999.99" bottom(ec)
total(amount) "%9,999,999.99"
This query selects transactions with Expense Codes of "UE" or
"UW" or "UP" that have a Date ending with "88" that also have a
Type of "C". Note that the question mark (?) is used as a wild
character, i.e., it is used to denote "any character". The
output report is to be printed and will contain the Date, Payee,
Expense Code and Amount. A total will be printed when there has
been a change in the expense code.
Several query command file examples have been included on your
Bank'n diskette. Use these query command files, or modify them
to fit your needs.
Rules:
(1) The Select statement may contain these operators:
= Equal to
<> Unequal to
< Less than
> Greater than
<= Less than or equal to
>= Greater than or equal to
(2) The field on the left side of the operator must be a
data name from the dictionary.
(3) The field on the right side of the operator may be
either a data name or literal. Literals must be enclosed in
double quotes.
(4) In the case of equal and unequal, the data name on the
left side of the operator is searched for any occurrences of the
data specified on the right of the operator.
(5) The length of the item to the right of the operator may
not be greater than the length of the item to the left of the
operator.
(6) When used in a literal, the "?" is wild. For example,
to select all records in the database enter:
select
date = "?"
(7) Commas may used to improve readability; otherwise, they
serve no useful purpose.
(8) All data names and commands must be in lower case.
(9) When a vertical bar "|" is encountered in the query
command file, the remainder of the line is assumed to be a
comment.
If your printer carriage is 80 columns in width, try setting your
printer preferences for compressed mode in order to print reports
that are greater than 80 characters in width. Also, if your
printed output does not have the expected appearance, check your
printer preferences.