On 09/09/2012 06:51 PM, JAMES MAJESKI wrote:
It seems to me that there ought to be advantages to using
databases. After all, there are college courses of databases. Oracle has
a database program (better known as a database management system that is
very complex). The text book for it is 700+ pages. This is used in many
of the large businesses. This textbook is known to give students
headaches. So, is it possible that the things you see as advantages and
disadvantages just might not be the whole story?
The following is the link to the draft folder for Base. You can
download the database use with Chapter 1 of the Base Guide. There is
also a link to the database (Budget.odb) used for Chapters 2-4 of the
Base Guide. Perhaps the latter could show the advantages of using a
database instead of a spreadsheet.
In a spreadsheet I get all the information I require and it is easy to get
additional information if needed. I can add, modify, and delete headers both
horizontally and vertically. I can add, modify, or delete cells, rows, or
columns at will. As long as I leave the original data alone, I can add as
many calculated columns or rows as I wish. One of my spreadsheets is a
complete double entry bookkeeping system. I can use split or freeze to keep
the column and row titles visible while scrolling through the data of the
According to what I read last night, you must be very careful or you may
compromise essential data. The implication was that it would be easier and
safer to create a new database than to modify it. From the
"Fields can be added or deleted, but adding a field requires you to enter
the data for that one field for every existing record with an entry for that
"Deleting a field deletes all the data once contained in that field."
"Changing the field type of a field can lead to data being lost either
partially or completely."
"Deleting a table removes all of the data contained in every field of the
I will continue reading, but so far it seems that a spreadsheet has all the
advantages and none of the disadvantages of a database.
My knowledge of databases is very limited. If there is any advantage in
using a database over a spreadsheet, please share it with me
In the past, I have used a spreadsheet to keep track of my
finances. Now I use a database which I prefer. Why? Size is one of the
reasons. Each sheet get physically larger as data is entered, a database
does not. Spreadsheet: data is entered into individual sheets based upon
the specific data. Database: the entries are made in a single form.
Spreadsheet: data must be linked from one sheet to another (I had links
between data with a sheet). Database: This is done using table and field
To me, one of many advantages of a database is the query. You can
tell it to get data from specific fields, and it will display it in a
table format. This does not take up physical space like it would in a
spreadsheet. Another is what can be done with the "simple" sum function
in a query. For example, my financial database has a field named,
Amount. In this field I enter all of the expenses and income that I
have. I create the query to find the sum for the Amount field. I also
tell the query to separate this sum so that I get a subtotal for each of
my Accounts (I have 9). So I now have 9 subtotals of the Amount field.
I also tell the query to list the names in the Accounts field
alphabetically. In the end, the query's output is 2 columns by 9
columns: first column contains the names of the accounts listed
alphabetically, and the second column contains the balance for each
This is the SQL statement for the query in Budget.odb (it only has
SELECT "Account", SUM( "Amount" ) AS "Account Balance" FROM "Data" WHERE
"Account" IS NOT NULL GROUP BY "Account" ORDER BY "Account"
This is the output:
I use the same structure for the balances of my accounts. The only
difference is that in Budget.odb, the Account field has 5 entries (hence
5 rows of subtotals) whereas mine has 9 entries (hence 9 rows of subtotals).
It just occurred to me another advantage: the Data Source window
which you open in Writer or Calc using the F4 key. You can see the query
output without opening the database.
Bank of America
Bank of Tennessee
Wells Fargo VISA
For unsubscribe instructions e-mail to: email@example.com
Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette
List archive: http://listarchives.libreoffice.org/global/users/
All messages sent to this list will be publicly archived and cannot be deleted
Impressum (Legal Info)
: Unless otherwise specified, all text and images
on this website are licensed under the
Creative Commons Attribution-Share Alike 3.0 License
This does not include the source code of LibreOffice, which is
licensed under the Mozilla Public License (MPLv2
"LibreOffice" and "The Document Foundation" are
registered trademarks of their corresponding registered owners or are
in actual use as trademarks in one or more countries. Their respective
logos and icons are also subject to international copyright laws. Use
thereof is explained in our trademark policy