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Online customer database system with alert modes, targeted bulk mailing modes.
Price: $34.95

Bug Tracker also allows customization to use other database systems, new tables, and new information. Bug Tracker ships ready to use integrated authentication compatible with UNIX/Linux, DB, LDAP, or NTLM. This product is ideally suited for business people on the move who need instant access to company or client information. It is also a great management tool for companies and organisations in terms of project coordination, inventory control, client management and information dissemination.
Price: Freeware

csGridView is an automated script that allows the user to manage flat file databases with very little effort. You can create databases from scratch or import existing database files. Make changes to databases using your web browser.
Price: $35.00

This script allows you to add records or to search one or several csv databases.
Price: Freeware

Dump, process, and mail a MySQL table.
Price: Freeware

The Database Doctor manages and displays text file databases of any field size. This powerful script can easily be used for a directory of addresses, products, or any list you can imagine. The display script is very customizable, but automated so that it works right out of the box as well. The Database Doctor features include column settings for required fields, unique fields, data types, default input and more. Easy forms for adding new items, preview, editing, deleting, search, sort by field, and will even prepare a page of your data for printing.
Price: $49.95/$69.95

This database sorting script, written in Perl for use on both UNIX and Windows servers, is designed to alphabetically sort a flat-file database which contains records and to remove all duplicates that exist in that file. The script may be run from either the Telnet command line prompt or from a web browser.
Price: Freeware

DBDisplay is a shareware database script that displays the contents of a flat-file, pipe delimited database file in a nicely formatted HTML table. The script handles up to 10 separate database files depending on the URL parameter values. The script is highly configurable and contains paging which allows you to specify the desired number of records per page you would like to view.
Price: Free/$50.00

Site administrator can edit any record in the database, very convenient if you need to make minor modification in a large database; easy to keep information up to date.
Price: $75.00

dbtool can be used to store and retrieve data in a key/value format in a hash database. Perl compatible regular expressions are supported both for storing and retrieving of data. It's main advantages are the ability to maintain huge amounts of data and speed. As of version 1.4 dbtool supports encrypted databases using the RIJNDAEL cipher algorithm.
Price: GPL