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(tm)
PC-FILE
A Database Manager Program
For the Osborne Computer
Copyright(c) 1983 by Jim Button
Version 8.5
Jim Button
P.O. Box 5786, Dept.OZ
Bellevue, WA 98006
Source ID: CL2925
Compuserve: 71435,2012
.pa
PC-FILE
Table of Contents
General Information...............................3
Getting started...................................3
Use of the "Esc" key..............................4
Defining your file................................4
The Master Menu screen............................5
Adding Records to your Database...................6
Modifying a Record................................6
Deleting a Record.................................7
Displaying a Record (by using the 'key')..........7
Finding a Record..................................8
Listing the Records...............................8
Cloning: outputting a redefined database.........11
Sorting the Database Index.......................12
Seeing the Record Layout.........................13
Altering a Field Name............................13
Ending the program / changing to a new database..13
Backing up the Database..........................13
Using PC-File Data with Mailmerge................13
Using PC-File Data With Other Programs...........14
Importing Other Files into PC-File...............14
Some Maximums and Minimums.......................15
Calculating the Size of Database Disk Storage....15
Disclaimer.......................................16
The User Supported concept.......................16
.pa
GENERAL INFORMATION:
PC-File is a general purpose "Data Base
Manager" program. It was written with one overriding
goal in mind: Ease of use. With PC-File, it's very
easy for the casual or professional user to create
and maintain data files on the computer, and to
create simple printed reports based on that data.
You can use PC-File for all kinds of tasks:
Maintain mailing lists and print labels,
Maintain price lists,
Maintain telephone directories,
Keep various types of inventory records,
Build personnel files,
Keep customer lists,
Build and maintain files to be used by other
programs, like Mailmerge,
and many other tasks which only you can
dream up.
PC-File will allow you to sort your data
into almost any sequence. It allows rapid access
to any record in the file, with a sophisticated
search technique allowing comparison searches on any
field in the record. For example, you can display
all employees over a certain age, or all clients in
a certain state, or all items that are not in a
certain category. You can print out reports from
your database, listing all or some of the fields,
from all or some of the records, in many different
sequences, with totals on the numeric fields.
Reports can be sent directly to your video screen,
to a printers, or they can also be sent to disk for
later use with your word processing programs.
You can create entire new databases from
existing databases. The new database can be in a
different format, and can be a subset of the
database from which it was "cloned".
You can export your database files for use with
"MailMerge" files.
But above all else, PC-File is EASY! Most
people can use it with no training or instructions.
You need read the documentation only to pick up some
extra 'fine points' of the program. The author has
steadfastly refused to make any additions to PC-
File which would make it harder to use. Any
suggestions which you have for improving this
program will be greatly appreciated.
GETTING STARTED.
To start the program, put the PC-File disk in
the "A:" drive and press the "Reset" button.
When prompted with the question "Which drive
(A,B,C,D) for the Data:", enter the letter
corresponding to the disk drive where your files
will be stored.
USE OF THE "Esc" KEY.
Sometimes you will get into a part of the
program which you have decided you wish you weren't
in! (You may have pushed the wrong function key, for
example). At these times, you may push the "Esc" key
to get back to the master menu screen. You should
not in general rely heavily on the "Esc" key,
because overuse of it will gradually nibble away at
your available main memory. Use this key only when
you can figure no other convenient way out of a
situation.
DEFINING YOUR FILE.
PC-File will show you a screen with the message
"These files are already defined:", and will then
ask "FILE NAME:". If this is the first time you have
run the program, there will be no file names
displayed. Type in the name of the file you will
want to define. This should be a one to eight
character name, starting with the characters A to Z.
The only other characters allowed in the name are
the numerals 0 to 9, but do not include a numeral as
the first character in the file name. Do not include
a file suffix (a period followed by three more
characters), because PC-File will supply standard
suffixes for your files.
Your next prompt will be "KEY FIELD NAME:".
The first data field in your record is known as the
"Key" field. This is the data which most uniquely
defines the data contained in the record. For
example, 'employee number' in an employee file, or
'part number' in an inventory. It is not necessary
for each key in your file to be unique. The only
significance of this field is that, by specifying it
correctly, you will be allowed somewhat quicker
access to the data records in your file. You will
still be able to get at all the data in the file if
you specify this incorrectly, so don't fret too much
about it.
In choosing a field name, any valid character
can be used. However, you will find it convenient to
choose relatively short names, just long enough so
you understand and can remember what the name stands
for each time you see it. It is best to choose a
name that's not longer than the number of characters
actually in the field itself, because the name will
be truncated to the data length when printing titles
for the printed reports. For example, if an employee
number is six digits long and you name the field
"EMPLOYEE", the title for that field on your output
reports will be "EMPLOY". Sometimes you have to
choose longer names, so let your own judgment and
taste be your guide. Just be careful not to use this
same name for any other field in the record.
If the field will contain numeric data, such as
price, or quantity, give the name a "#" at the end.
Example: "PRICE#". This will cause PC-File to keep
totals for that data when printing reports, and will
also cause the data to be printed "right-justified"
on the output reports.
Don't worry if you select an inappropriate name
for a field. You will be allowed to change the
field names any time you wish after the file has
been completely defined.
You'll be prompted for "FIELD LENGTH:". Enter
the number of characters which are required to
contain the data for that field. Field lengths
should be 99 characters or less. If your database
has more than 19 fields, then field length should be
kept to 25 characters or less if it is one of the
first 19 fields.
You will continue to be prompted for "FIELD
NAME:", followed each time by "FIELD LENGTH:".
Continue to supply the data until you have defined
all the fields in your data record. Then, when
prompted again with "FIELD NAME:", simply press the
(enter) key. Since no data was entered, PC-File will
know that you have finished with record definition.
The maximum number of fields which you will be
allowed to define is 37. The minimum is one. The
total of all field lengths may not exceed 254.
After you have finished with record definition,
PC-File will take you to the Master Menu screen.
THE MASTER MENU SCREEN.
It looks like this:
FILE:xxxxxxx
(1) ADD a record
(2) MODify a record
(3) DELete a record
(4) DISplay a record
(5) FINd a record
(6) LISt or clone
(7) SORt the index
(8) see the record LAYout
(9) alter a field NAMe
(0) END or change database
Your Command:___
You may perform any of the functions on the
master menu screen by pushing the appropriate number
key at the top of the keyboard. You can accomplish
the same thing by typing the three-character
function code (indicated by the three capitalized
letters in each command). For example, to alter a
field name, you could either push (9),or you could
type NAM followed by the (return) key. Some people
like number keys, some learn the names of the
commands more easily and so prefer to type the three
characters. PC-file lets you suit yourself!
Now that you have defined your database, the
first thing that you will want to do is put some
data into it.
ADDING RECORDS TO YOUR DATABASE.
To add records to your file, push (1) or type
ADD when viewing the master menu screen.
PC-file will then find an empty spot for your
new record to go into. If there has been a record
deleted previously from the file, that location will
be reused for the added record. If there are no
deleted records in the file, the new record will be
added to the end of the file. In either case, PC-
File will tell you at the top of the screen which
location it has found for adding your record.
You will then be prompted to enter your data,
one field at a time. PC-File will print out the name
of the field and will prompt you to fill in the
data. On data entry, if you enter a single quote or
a single apostrophe, PC-File will duplicate the data
from the previously added record into this field.
After you have entered all the data for one
record, it will be added to the file. PC-File will
then prompt you to add another record. If there are
no further records to add at this time, just press
(return) when asked for the data for the first field
of the record. You will be returned to the master
menu screen.
There is a maximum of 1500 records allowed in
this version of PC-File. Depending on the layout of
the record you've defined, you may not be able to
sort the entire maximum number of records. You will
be able to enter as many records as can fit on one
diskette (even exceeding the 1500 limit), and to
print reports and do all the other functions
provided by PC-File; but the number of records that
can be sorted is dependent on main memory available,
and cannot exceed 1500. See the section titled
"Sorting The Database" for more information on this
topic.
MODIFYING A RECORD.
To modify a record in your file, push (2) or
type "MOD" while viewing the master menu screen.
You will be asked "KEY or #n,*,+,-,\ ". If you know
the key (the data in the first field) of the record
to be modified, enter it at this time.
Alternatively, you can enter the record number
of the record in the file. The first record is
number 1, the second is 2, and so on. To modify
record number 120, you would enter "#120".
Entering an "*" will allow you to modify the
most recently retrieved record. This is handy when
you have just used "FINd" to locate a record, and
now you are using "MODify" to change it. Instead of
having to enter the record # of the found record,
just enter an "*". It's also handy for making
another modification to the same record that you
just finished modifying.
A fourth way to specify the record to be
modified is to enter "+", meaning to modify the next
record after the one which you just modified. You
can also enter a "-", meaning to modify the record
just prior to the one you just modified.
If you enter a "\", you will be presented with
the last record in the file and allowed to modify it.
PC-File will retrieve the record to be modified
and ask you which field to modify. Enter as much of
the field name as required to uniquely identify the
field. You will then be prompted to enter the new
data.
After you have modified the record, you will be
prompted to enter the KEY value for another record
to be modified. If you have no other modifications
to make at this time, just press (enter) and you
will be returned to the master menu screen.
DELETING A RECORD.
To delete a record, press (3) or type "DEL"
while viewing the master menu screen. You will be
asked "KEY or #n,*,+,-,\ ". You should then enter
the Key value of the first field in the record to be
modified, or the record number in the file (preceded
by a #), or an "*" to delete the most recently
retrieved record, or a "+" to delete the next record
in sequence, or a "-" to delete the previous record
in sequence, or a "\" to delete the last record in
the file. (Read the above section "Modifying A
Record" for a longer explanation of this prompt.)
PC-File will retrieve the record and display it
for you and then ask you to "Type 'DELETE', or press
(enter)". If you decide that you really do wish to
delete the record, type "DELETE" and press (return).
If you decide not to delete this record, just press
(return). You will then be prompted for the next
record KEY to be deleted.
When you have finished with all your deletions,
just press (return) when asked for the next record
KEY. You will be returned to the master menu.
DISPLAYING A RECORD (by using the 'KEY').
To display a record, press (4) or type "DIS"
while viewing the master menu screen. You will be
asked "KEY, or #n,+,-,\ ". You should then enter
the Key value of the first field in the record to be
displayed, or the record number in the file
(preceded by a #), or a "+" to display the next
record in sequence, or a "-" to display the previous
record in sequence, or a "\" to display the last
record in the file. PC-File will retrieve and
display the record for you, and then prompt you for
the next record to be displayed. When you are
through displaying records, just press (return) and
you will be returned to the master menu screen.
FINDING A RECORD.
To find a record, press (5) or type "FIN" while
viewing the master menu screen. You will be shown a
list of all the field names in the database, and
asked "FIELD TO SEARCH". You should type in the name
of the field which you wish to search on. (You only
need to enter as much of the field name as required
to uniquely identify the field. PC-File will next
prompt you with:
'>xxx' scans full field. (slow)
Look for:__________
You should now type in the data which you would like
to search for. If you precede the data with a ">"
character, PC-File will look for an occurrence of
that data anywhere in the field. For example, if
you type ">mit", records will be returned which have
"Smith", or "transmit", or "miter", etc. If you type
"mit" (without the ">" in front) records will be
retrieved which start out "mit" in the field, such
as "miter", "mitten", etc.
The second type of search will proceed much
faster than the first type, because to do a "full
field scan", PC-File must look at every record in
the file. To do the second type of search, PC-File
can take advantage of its index file for very rapid
retrieval.
Note that the search is fully "generic": that
is, all records will be retrieved when the data
field "begins with" the search data. You can, for
example, find all records with last names that start
with "S", or find all records with zip codes
starting with "980".
Each record found will be displayed in its
entirety, followed by this prompt: "S to stop, or
press (enter)". If you want to find more records
which match this search criterion, just press
(return). The next record will be found and
displayed. If you wish to stop searching for this
data, type "S" and then push (return).
LISTING THE RECORDS.
The listing capabilities of PC-File are very
powerful indeed. You will be allowed to search for
data based on "equal", "unequal", "greater than", or
"less than" relationships. The data can be displayed
in any format which you specify. And you can list
the report on your printer, on your screen, or to
disk.
To list the records, press (6) or type "LIS"
while viewing the master menu. You will be shown the
names of all the report formats which you have
previously defined and asked "Which format, or press
(enter)".
If this is the first time you've ever created
this particular report format, just press (return).
You will be shown all of the field names in this
database, and prompted with: "Column=0. Field to
List:". You should type in the name of the field
which you would like to see first on your report (at
the far left). You don't need to type in the whole
field name; only enough so that PC-File can uniquely
identify it. As you continue to be prompted to
enter field names, PC-File will keep you informed,
at the bottom of the screen, about the number of
print columns which you have used up. If the report
will go to your screen, you should not let this
number go beyond 132. If the report will go to your
printer, you should not let the number go beyond the
maximum width of a print line.
PC-File will list your fields side by side on
the output report, with one space inserted between
each field. If you would like some extra spaces to
print between each field, you can specify this by
responding ">nn" (where nn is the number of spaces
to be inserted) when asked for the "Field to list".
For example, to cause a field five blanks wide to
appear in the output list, reply: >5 . This is also
handy for creating new (empty) fields in cloned
databases. See the section entitled "Cloning
(outputting a new database)".
If you would like to have a backspace printed,
which will result in printing the two adjacent
fields side by side with no space between, enter a
"<" when asked for the field to list. Note that some
printers can't handle the backspace character.
If you are defining a "Mailing Labels" list you
should enter a "/" instead of a field name at the
times when you would want a carriage-return/line
feed to occur. In this case, you must cause at
least one blank line to appear between each label
(a "/" as the only field defined on the last line of
the report).
When you have entered all of the fields to
appear on the listing, just push (return). You will
be asked "Save this report format?". Reply "Y" if
you will ever want to print this report again, or
"N" if this is a one-time-only report. If you
replied "Y", you will then be asked "Name for this
format:". Just type in a 1 to 8 character name by
which you would like to remember this report format.
You will next be asked: "List on Printer,
Screen, or disk(P,S,D)". Type "P" to get a printed
list, or "S" to get the listing on your video
screen. If you are "cloning" (creating a new
database) or printing to disk, reply "D". See the
section on Cloning a new database.
If this is not a mailing labels list, you will
be asked "Title of Report:". Enter any title up to
99 characters long.
You will then be asked "List All records or
Selected records (A or S):". If you want to see all
the records in your report, answer "A".
If you only want to list some of the records,
answer "S". In this case, you will be shown all of
the field names and asked "Field to Select on:". PC-
File wants to know which field will determine
whether or not the record will be printed. Enter
enough of the field name to uniquely identify it
(watching out for upper and lower case). You will
then be asked "Compare how? >,<,=,<> ". The field
which you have selected will later be compared to
some value which you will also later enter. PC-File
is asking how it should compare the field to the
value. If you will want them to be equal, enter "=".
If you will want to see records which have the field
less than some value, enter "<". For a "greater
than" comparison, enter ">". For "unequal", enter
"<>". Now you will be asked for the value which your
field will be compared to. PC-File asks:
"Compared to value:". Enter the value. Example: To
list all records with zip codes greater than "980",
you would respond as follows:
"Field to select on:" ZIPCODE
"Compare how? " >
"Compared to value: " 980
If you are using a printer for output, PC-File
will now pause with a message to allow you to set up
the printer.
Now is when PC-File really goes to work for
you. Here's a peek at what's going on behind the
scene: PC-File will select or reject each record
based on your selection criteria. It will
automatically print your titles, column headings,
and page numbers for a report, or omit them for
labels. It will automatically format your output
list, sending it to the screen or printer, pausing
the screen at the right moments. For labels, it
automatically compresses the output lines and data
to make nice looking labels. It accumulates final
totals for all field names ending with a "#".
To stop the listing and abort it early, you may
press (Esc) at any point in time.
CLONING: (OUTPUTTING A NEW DATABASE).
You can create an entirely new database from an
existing database. You may want to do this to create
a subset of the original database (with less
records), or to change the way your database was
defined.
To do this, press (6) or type "LIS" while
viewing the master menu. You will be asked "Which
format, or press (enter)". Press (return). You will
be shown all the field names in your database and
asked "Field to list:". Specify the name of the
first field for your new database. You can specify
these field names in any sequence you desire, and
you do not have to specify all of them. In this
manner, you can create a new database with the
fields in a different order from their original, and
possibly leave some of the data out of the new
database. You can also insert blank fields in your
new database by replying ">nn" (where nn is the size
of the blank field which you would like to insert).
This is like specifying an output report format,
except that PC-File will not put a blank between
each column as it would if it were printing a
report. See the section on "Listing The Records".
When asked: "List on Printer,Screen,or Disk
(P,D,S):", reply "D". When asked "Clone or Report",
reply "C". You'll then be asked "Change any field
lengths?". If you wish to increase or decrease any
field lengths, reply "Y" and follow the prompts.
At this time, you will be allowed to specify
which disk drive will contain the newly created
database. You can put it onto a different drive than
the one you are currently using for data, or on the
same drive. You will also be asked to specify the
name for the new database. Be careful not to give it
the same name as some other database already on the
output drive. If you do the old one will be deleted.
When asked: "List All records or Selected
records", reply appropriately. If you reply "A", the
new database will contain the same number of records
as the original from which it was cloned. If you
reply "S", you'll be allowed to specify a selection
sequence which will give you a subset of the records
in the original database.
After your new database has been created, you
will be reminded that it must still be sorted before
you do anything else with it. This is so that an
index can be created for it.
You will be returned to the master menu screen,
still working with your original database. If you
wish to change over to the new database at this
time, see the section entitled: "Ending The Program
/ Changing to a new Database". Don't forget to sort
the new database as your first activity with it.
SORTING THE DATABASE INDEX.
You can cause your records to be placed in a
different sequence by using the sort feature.
To sort the records, press (7) or type "SOR"
while viewing the master menu screen. PC-File will
load a special sort program into the computer,
print out all the field names, and ask: "Sort field
#1:". You should enter the name of the field
which you would like to use to sequence the file.
(Just enter enough of the name to uniquely identify
it.). If the sequence will depend on multiple
fields, you should give the name of the most
primary field in the sort sequence. You will be
allowed to enter up to ten field names in the sort
sequence.
After each field name, you will be shown the
length of the field and asked "Length?". Sometimes
you don't have to sort on the full length of the
field, and the sort would run more efficiently in
these cases. For example, to sort on a last-name
field that is 15 characters long, it may be
sufficient to sort on only the first 6 characters.
You be the judge. Enter any number from 1 to the
full length of the field. If you enter nothing, it
will default to the number shown.
When you have finished identifying all the
sequence fields, just push (return).
You will then be asked "Ascending or Descending
(A or D):". This is your chance to tell whether you
want the file to be sorted into ascending or
descending sequence based on the sort fields that
you specified.
The sort will now proceed and keep you informed
of its status as it progresses.
During the main part of the sort, you will see
the message "Sorting xxx Records" and a number
appearing centered under that line. The number
will decrease by 1 each time it changes. This is an
attempt to give you a feeling for how long the sort
will take. When the number reaches zero, the sort
phase is complete.
During the index rebuild, the countdown to 1
may appear several times, because the rebuild phase
reinvokes the sort routine once for each 350 records
in the file.
The sort is quite fast, sorting the full 1500
records in under one minute. However, the index
rebuild phase is much slower. You can plan on a
total sort/rebuild time of 200 records per minute,
average. When the sort is finished, it will reload
the main program and take you back to the starting
point of PC-File.
A technical note for those who are so inclined:
The sort is a "Shell" sort and takes place entirely
in main memory. The data file itself is not sorted.
The Index file, which contains pointers to the data
records, is sorted. This permits very large files to
be sorted at high speed. The sort program has been
defined with a maximum of 1500 records to be sorted.
This number is somewhat arbitrary and may be changed
in future releases of PC-File as more experience is
gained. If you ever run out of memory during the
sort, try sorting with a smaller number and size of
sort fields.
SEEING THE RECORD LAYOUT.
To see the record layout as it was originally
defined, press (8) or type "LAY" while viewing the
master menu. You will be shown a list of all the
field names defined for the record, along with the
corresponding length defined for each field.
Pressing (return) will return you to the menu.
ALTERING A FIELD NAME.
You can change the name of any field defined in
your database. You might want to do this, for
example, to change a field from numeric to
character, or to shorten the field name. Press (9)
or type "NAM" while viewing the master menu screen.
You will be shown a list of all the field names
and asked "Which Name to Change:". Type the name of
the field you wish to change. You will then be asked
to "Enter the New Name:". Type the name that you
would like to use for the new name of the field.
You will then be allowed to change the name of
another field, or just press (return) to return to
the master menu screen.
ENDING THE PROGRAM / CHANGING TO A NEW DATABASE.
To end the program and return to the CPM
operating system, or to change to a different
database, press (0) or type "END" while viewing the
master menu. PC-File will ask: "Quit, Change file,
or Resume?(Q,C,R)". Answer "Q" if you have completed
processing with PC-File. Answer "C" if you would
like to keep using PC-File, but wish to process a
different database. Answer "R" if you didn't really
mean to push (0), in which case you'll be returned
to the master menu screen.
BACKING UP THE DATABASE.
From time to time, it's a good idea to make a
backup copy of an important database. In order to
back up your PC-File database, use the "COPY"
program provided on your CPM disk.
USING PC-FILE DATA WITH MAILMERGE.
You can export your files into a format which
can be used with Mailmerge or other types of
programs which require your fields to be separated
by commas. This is handy for keeping a mailing
labels database and then printing customized letters
to each person on your mailing list. To do this, you
must run (from CPM) the program "PCEXPORT". Answer
the questions about the input and output drive and
the database name. When the program is finished,
your new file will have the name "filename.WS".
USING PC-FILE DATA WITH OTHER PROGRAMS.
PC-File makes an excellent "Front End" program
for other systems which you might develop. You can
use PC-File to handle the file maintenance functions
and concentrate your efforts on the rest of the
system.
The file "filename.DTA" (where "filename" is
the name you gave the database), is the data file
which you will want to use. The file is laid out
with each field of the record being fixed length
(the length that you defined for it) and padded on
the right if necessary with blanks. The fields are
in the record in the same order in which you defined
them. Deleted records which have not been re-used
will be totally filled with the "/" (slash)
character. There is a carriage return character
(HEX 0D) added to the end of each record. The end of
the file is marked with a "\" (backslash) in the far
left position (Byte 1). All records in the file will
be the same length. The sequence of the records in
the file is the same sequence in which they were
originally entered (ADDed), except that deleted
records are re-used when another ADD takes place.
The sort program does not resequence the data
portion of the database, only the index.
You might also consider using PCEXPORT to
output your database into Wordstar format before you
try to use it. This way, it will be in the most
recent sort sequence.
IMPORTING OTHER FILES INTO PC-FILE.
This section is not for the novice. Please skip
it if you don't think of yourself as a programmer.
It is possible to use files created by other
systems, defining them to PC-File as your own
database. To do this:
1. Start up PC-File and define the file as a new
file on your system, so that the "filename.HDR"
file will be established. If your file contains
more than just a carriage-return at the end of
each record, you must either remove the extra
characters, or account for them in your file
definition. Example: text editor programs
commonly put a line-feed and a carriage return
after each record. You can account for this
extra character by giving it a name and a length
of 1.
2. Erase "filename.DTA" from your PC-File data disk
(it should be empty anyway at this point.)
3. Copy the file to be converted, onto your PC-File
data disk, giving it the name "filename.DTA".
4. Your file must be in fixed-length record format,
and contain a "\" (backslash) as the first
character in the last record of the file. You
may have to use a special program, or an editor
program to get your file into this format.
5. Now you have everything that you need except
"filename.INX". Create an empty file for this,
with a "\" as the only record.
Start up PC-File again, specifying your
filename as the file you'll be working with. Select
the "SORT" option, and sort your file in whatever
sequence you desire. Since the sort program builds
a fresh index from scratch, you'll have a complete
database going for you after you finish the sort.
SOME MAXIMUMS AND MINIMUMS.
Minimum RAM Memory required.................64K
Minimum Disk Drives required..................1
Maximum Disk Drives supported.................2
(Drives A through B, but all the programs
must be on one drive, and all the data
must be on one drive.)
Maximum Field length.........................99
(25 if greater than 18 fields in the record)
Minimum Field length..........................1
Maximum Field Name length....................12
Minimum Field Name length.....................1
Maximum Fields per Database..................37
Maximum Records per Database...............1500
(More, if you don't need to sort.)
Maximum Number of Sort Control Fields........10
CALCULATING THE SIZE OF DATABASE DISK STORAGE.
You can calculate the amount of disk space your
database will consume. The filename.HDR file for
each database takes 2K. For the filename.INX file,
take the number of fields defined and multiply this
by 2. To that answer, add 4. The answer is the
number of characters in an index record. Multiply
this by the number of records in the file, and round
up to the nearest 2048 bytes. For the filename.DTA
file, add together the length of each field defined.
To that answer, add 1. This gives the number of
characters in a data record. Multiply this by the
number of records in the file and round up to the
nearest 2048 bytes. For each ".RPT" (report
specification) file, use 2048 bytes. Adding all
these numbers together gives the total disk space
required for your database.
.cp 7
DISCLAIMER.
In no event will the Author be liable to you
for any damages, including any lost profits, lost
savings or other incidental or consequential damages
arising out of the use of or inability to use these
programs, even if the Author has been advised of the
possibility of such damages, or for any claim by any
other party.
THE USER-SUPPORTED CONCEPT.
"User-Supported Software"
If you are using this program and find it
to be of value, your contribution
($35 is suggested) will be appreciated.
Jim Button
P.O. Box 5786, Dept.OZ
Bellevue, WA 98006
Regardless of whether you make a contribution,
you are encouraged to copy & share this program.
Clubs and other non-profit organizations are granted
permission by the author to freely copy this program
and share it with their members, so long as:
1. No price is charged for the software or
documentation. However, a distribution cost may be
charged for the cost of the diskette, so long as it
is not more than $5 total.
2. Club members are informed of the user-supported
concept and encouraged to support it with their
donations.
3. The program and documentation are not modified in
any way, and are distributed together.
User-supported software is an experiment in
distributing computer programs, based on three
beliefs:
1. That the quality and utility of software is best
assessed by the user on his/her own system.
2. That the creation of personal computer software
can and should be supported by the computing
community.
3. That copying of programs should be encouraged
rather than restricted.
Anyone may request a copy of a user-supported
program by sending a blank, formatted disk to the
author of the program. An addressed, postage-paid
return mailer must accompany the disk (no
exceptions, please).
A copy of the program, with documentation, will be
sent by return mail. The program will carry a notice
suggesting a contribution to the program's author.
Making a contribution is completely voluntary on the
part of the user.
Free distribution of software and voluntary payment
for its use would eliminate advertising costs and
copy protection schemes. Users could obtain quality
software at reduced cost. And the best programs
would survive, based purely on their quality and
usefulness.
The entire computing community is indebted to Andrew
Fluegelman of The Headlands Press, Inc. for initial
development of the user-supported concept.
Please join the experiment. If you believe in these
ideals your contribution is solicited to help make
them work.