Adult web hosting - Why Choose MySQL? 5 Ad Hoc Queries It
Why Choose MySQL? 5 Ad Hoc Queries It is likely that your software will need to retrieve stored data using arbitrary parameters, otherwise known as ad hoc queries. This becomes difficult with flat files because they are not self-describing, and every file layout is different. You also need to consider how you are going to read the data for these queries from your persistent storage mechanism. Many RDBMSs use SQL (Structured Query Language) for manipulating data. SQL is a declarative language in that you declare what data you want, not the procedure for how to get it. SQL is also an accepted and widely used standard, so a large set of tools are available (JDBC and Enterprise Java Beans, among them) to help you work with it. After outlining all of the benefits of an RDBMS, I hope you are ready to consider using one for your software projects. The next question to ask is Why choose MySQL? Why Choose MySQL? As was the case with many other open source projects, MySQL was first created by someone who needed a better tool to get a specific job done. Monty Widenius and David Axmark started out with another open source project (MSQL), but found that it lacked some features that they needed. They decided to develop their own database system that met their specific requirements. They started building MySQL by using some low-level database storage code they had already developed for other projects and layered a multithreaded server, SQL parser, and client-server protocol on top. They also structured the API for MySQL to appear very similar to MSQL in order to make it easier for developers to port their MSQL-based software to MySQL. MySQL was eventually released in source-code form, under a proprietary license. Eventually, this license was changed to the GNU General Public License (GPL), which in most cases allows the software to be used without license cost. However, in certain situations you must purchase a commercial license. The exact terms of the license are available in the documentation that ships with MySQL or on the Web at www.mysql.com. Commercial support is also available for those who need it from MySQL-AB, the company that was created by Monty and David to support the continued development of the MySQL software. The requirements that Monty and David originally had for MySQL were that it be as fast as possible, while still being stable, simple to use, and able to meet the needs of the majority of database developers. Even today, feature requests for future MySQL development are weighed carefully against these original
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