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| #pragma section-numbers off This is the chapter of the MemberManual that describes how to use PostgreSQL and MySQL databases on HCoop servers. [[TableOfContents]] == MySQL == Creating a MySQL user account is an easy task with {{{dbtool}}}. It is available for use when you login to mire.hcoop.net. Run the following command: {{{dbtool mysql adduser}}}. You will be asked for a password. The user created will be the same as your log-in username. === Creating and Deleting Databases === {{{dbtool}}} is also used to create new MySQL databases. Replace DATABASE with your desired database name: {{{dbtool mysql createdb DATABASE}}}. The database created will be USER_DATABASE (where USER is your username and database is the name you provided {{{dbtool}}}). Delete a database with the following: {{{dbtool mysql dropdb DATABASE}}}. === Changing Your Password === If you need to change your MySQL password for security purposes or you have forgotten it, you may do so with this command: {{{dbtool mysql passwd}}}. You will be prompted to input a new password. === Accessing Databases === For web applications, set the MySQL host/server to {{{mysql}}}. Default ports apply. Your password will be required. Please safeguard it. Remember that your database is really named USER_DATABASE, where DATABASE is the name you originally gave {{{dbtool}}}. Follow your software package's instructions. In addition, you can easily use the {{{mysql}}} shell to manipulate or analyze your databases: {{{ mysql -p -h mysql USER_DATABASE }}}. For security reasons, you cannot drop a database using the {{{mysql}}} shell. To learn more about the MySQL shell, review the [http://dev.mysql.com/doc/refman/5.0/en/ MySQL manual]. == PostgreSQL == To create a PostgreSQL user account, enter the following command on mire.hcoop.net: {{{dbtool postgres adduser}}}. You will not be prompted for a password since PostgreSQL utilizes a security model that is quite different from MySQL. === Creating and Deleting Databases === Additionally, {{{dbtool}}} is used to create new MySQL databases. Replace DATABASE with your desired database name: {{{dbtool postgres createdb DATABASE}}}. The database created will be called USER_DATABASE (where USER is your username and DATABASE is the name you provided {{{dbtool}}}. Delete a database with the following command: {{{dbtool postgres dropdb DATABASE}}}. For security reasons, you cannot drop a database using the {{{psql}}} shell. === Accessing Databases === For web applications, set the PostgreSQL host/server to {{{postgres}}}. Default ports apply. A password is not required. Remember that your database is really named USER_DATABASE, where DATABASE is the name you originally gave {{{dbtool}}}. Follow your software package's instructions. It is very easy to access your database using a PostgreSQL shell: {{{psql -h postgres USER_DATABASE}}}. To learn more about the {{{psql}}} shell, take a loot at the [http://www.postgresql.org/docs/8.1/interactive/index.html PostgreSQL manual]. |
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