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https://dev.mysql.com/doc/refman/8.0/en/enterprise-encryption-usage.html
They are good for encrypting small amounts of data and creating and verifying signatures. This example works with both the component function and the legacy function: SET @priv1 = create_asymmetric_priv_key('RSA', 2048); SELECT ... To use MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/repair-table.html
In the worst case, you might have a new clean index file without information about the data file, and then the next operation you perform could overwrite the data file. QUICK If you use the QUICK option, REPAIR TABLE tries to repair only the index ...Important Make a backup of a table before performing a table repair operation; under some circumstances the operation might cause data ...Although normally ...
https://dev.mysql.com/doc/refman/8.0/en/bug-reports.html
If you encounter an error with InnoDB tables, restart the server and see whether the problem persists, or whether the error affected only cached data in memory. If the problem occurs during compilation, include the exact error messages and also a ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-security-networking-issues.html
Applications using the cluster and user of those applications must not be permitted to have direct access to the management and data node hosts. It is extremely important to remember that NDB Cluster “out of the box” is not secure; you or your ... In this section, we discuss basic network security issues as they relate to NDB ...Also see Section 25.4.1, “Quick ...
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-conversion.html
For object definitions that refer to the utf8mb4 character set, you can dump them with mysqldump prior to downgrading, edit the dump file to change instances of utf8mb4 to utf8, and reload the file in the older server, as long as there are no 4-byte ... This section describes issues that you may face when converting character data between the utf8mb3 and utf8mb4 character ...Note This discussion focuses primarily on converting between utf8mb3 ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-installation-windows-path.html
Warning You must exercise great care when editing your system PATH by hand; accidental deletion or modification of any portion of the existing PATH value can leave you with a malfunctioning or even unusable system. To make it easier to invoke MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-replication.html
To initiate replication, the binary logs required for the recipient to catch up to the donor must not be purged between the time that the data is cloned and the time that replication is started. Note that if the settings master_info_repository=FILE ...In addition to cloning data, a cloning operation extracts replication coordinates from the donor and transfers them to the recipient, which enables using the clone plugin for provisioning Group Replication members and ...
https://dev.mysql.com/doc/refman/8.0/en/optimize-table.html
Use OPTIMIZE TABLE in these cases, depending on the type of table: After doing substantial insert, update, or delete operations on an InnoDB table that has its own .ibd file because it was created with the innodb_file_per_table option enabled. You ...OPTIMIZE TABLE reorganizes the physical storage of table data and associated index data, to reduce storage space and improve I/O efficiency when accessing the ...After deleting a large part of a ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-server.html
A typical my.cnf file might look like this: [mysqld] datadir=/usr/local/mysql/var socket=/var/tmp/mysql.sock port=3306 user=mysql [mysql.server] basedir=/usr/local/mysql The mysql.server script supports the options shown in the following table. If ...To run the server as some specific user, add an appropriate user option to the [mysqld] group of the global /etc/my.cnf option file, as shown later in this ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-installer-workflow.html
This does not apply to files and directories for specific products, such as the MySQL server data directory in %ProgramData% that is owned by SYSTEM. This includes defining custom file paths for the error log, general log, slow query log (including ...Note Full permissions are granted to the user executing MySQL Installer to all generated files, such as ...Unlike the initial ...