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https://dev.mysql.com/doc/refman/5.7/en/merge-storage-engine.html
Note The use of MERGE tables entails the following security issue: If a user has access to MyISAM table t, that user can create a MERGE table m that accesses t. When you create a MERGE table, MySQL creates two files on disk. However, if the user's ... The MERGE storage engine, also known as the MRG_MyISAM engine, is a collection of identical MyISAM tables that can be used as ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-information-schema-buffer-pool-tables.html
The InnoDB INFORMATION_SCHEMA buffer pool tables provide buffer pool status information and metadata about the pages within the InnoDB buffer pool. The InnoDB INFORMATION_SCHEMA buffer pool tables include those listed below: mysql> SHOW TABLES FROM ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-logging.html
Then use either of the following techniques to prevent it from being created again: Set the MYSQL_HISTFILE environment variable to /dev/null. Create .mysql_history as a symbolic link to /dev/null; this need be done only once: ln -s /dev/null ... The ...
https://dev.mysql.com/doc/refman/5.7/en/upgrade-binary-package.html
For example: mysqld_safe --user=mysql --datadir=/path/to/5.7-datadir & Reset the root password: $> mysql -u root -p Enter password: **** <- enter temporary root password mysql> ALTER USER USER() IDENTIFIED BY 'your new password'; Load the previously ...For example: mysqladmin -u root -p shutdown mysqld_safe --user=mysql --datadir=/path/to/existing-datadir & Logical Upgrade A logical upgrade involves exporting SQL from the old MySQL instance using a backup or export utility such as mysqldump or mysqlpump, installing the new MySQL server, and applying the SQL to your new MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/windows-postinstallation.html
If you install MySQL using MySQL Installer, the root user is created automatically with the password you supplied. If necessary, initialize the data directory and create the MySQL grant tables. Windows distributions prior to MySQL 5.7.7 include a ...
https://dev.mysql.com/doc/refman/5.7/en/sql-prepared-statements.html
To create a test case that reproduces a problem with prepared statements, so that you can file a bug report. If you create a prepared statement within a stored routine, it is not deallocated when the stored routine ends. To guard against too many ...
https://dev.mysql.com/doc/refman/5.7/en/entering-queries.html
At this point, it is more important to find out a little about how to issue queries than to jump right in creating tables, loading data into them, and retrieving data from them. If you decide you do not want to execute a query that you are in the ...
https://dev.mysql.com/doc/refman/5.7/en/processlist-access.html
The sys schema session view presents information about user sessions like the sys schema processlist view, but with background processes filtered out. Privileges Required to Access the Process List For most sources of process information, if you ...
https://dev.mysql.com/doc/refman/5.7/en/system-schema.html
Grant System Tables These system tables contain grant information about user accounts and the privileges held by them: user: User accounts, global privileges, and other nonprivilege columns. Miscellaneous System Tables Other system tables do not ...
https://dev.mysql.com/doc/refman/5.7/en/security-guidelines.html
When running MySQL, follow these guidelines: Do not ever give anyone (except MySQL root accounts) access to the user table in the mysql system database! This is critical. A passphrase containing multiple words is easy to create, remember, and ...