![]() To uninstall it, go to Start > Settings > Control Panel > Add or Remove Programs. In this tutorial, we will assume that only a single instance of MySQL was previously installed. You do not need to manually stop the service before uninstalling MySQL, because the uninstallation process handles that automatically. The third entry in the illustration above shows that MySQL is currently running, with the status of "Started". Go to Start > Settings > Control Panel > Administrative Tools > Services, then click the Standard tab. So next check what Windows services are installed and running on your system. MySQL runs in the background, as a Windows service. Even though databases are rarely lost during installations, there is no point in running the risk. You may wish to copy the databases to a separate partition, or even hard drive, to be extra safe. To back up each database, use the mysqldump utility or a similar program, to export it in SQL format, so you can easily import it into the new instance. The "data" subdirectory contains subdirectories for all the databases in the instance but ignore "mysql" and "test", which are created and used by MySQL. Regardless of which option you choose, you should back up any databases that you want to save. ![]() ![]() An additional benefit is that you can be sure that any problems discovered are not the result of leftover files from the old version. More on this error, number 1045, later in the tutorial.Ĭlean installs may involve more work, but they are usually recommended. For example, it can cause the MySQL Setup Wizard to see your old password (in the "mysql" database), making it impossible to apply the security settings, because you cannot login as root, even using the old password. But it has the disadvantage of being a "dirty" install, which might not go as smoothly as a clean install into a new directory. Installing the latest version of MySQL over the older one has the advantage that you do not need to re-create any of those existing databases, as long as the formats of the database files are unchanged between versions. ![]() If you find an old version of MySQL installed on your PC, you have some options. It is possible to have multiple versions of MySQL installed, usually in different directories whose names contain the version numbers. For Windows, "C:\Program Files" is the default installation directory. First, look in all of the directories where you have installed applications in the past. In this tutorial, we will take a detailed look at how to obtain, install, and configure the MySQL database server on your Windows PC.īefore you start installing a brand new instance of MySQL, you should first determine whether or not you already have an earlier version of it installed, and if so, what to do about the older installation and any databases created using it. Of these, MySQL is the hands-down favorite. There are several relational database management systems (RDBMSs) from which you the developer can choose, ranging from expensive systems that can prove quite difficult to administer, to free and open source alternatives that may not have as many features as the proprietary RDBMSs, but can be much faster to set up and work with. But for most Web sites and applications, a robust database is called for. Rewritable flat files may be sufficient for extremely limited data for which security is not an issue. Ross Īs Web sites and Web-based applications become more important to commercial firms and other organizations, so too does the methods used for storing data online, such as customer contact information, system login details, product data, and much more. Installing MySQL on Windows by Michael J. Navicat for MySQL (Aritcle) - Installing MySQL on Windows
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