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https://dev.mysql.com/doc/refman/8.0/en/macos-installation-notes.html
Removing: After you have copied over the MySQL database files from the previous installation and have successfully started the new server, you should consider removing the old installation files to save disk space. You should keep the following ...
https://dev.mysql.com/doc/refman/8.0/en/manual-info.html
If you have questions about using MySQL, join the MySQL Community Slack. If you have suggestions concerning additions or corrections to the manual itself, please send them to the http://www.mysql.com/company/contact/. This is the Reference Manual ...
https://dev.mysql.com/doc/refman/8.0/en/memory-use.html
FLUSH TABLES does not return until all tables have been closed. MySQL allocates buffers and caches to improve performance of database operations. The default configuration is designed to permit a MySQL server to start on a virtual machine that has ...
https://dev.mysql.com/doc/refman/8.0/en/merge-table-advantages.html
You can even have many different MERGE tables that use overlapping sets of tables. (You must still specify the index definitions when you create a MERGE table, even though no indexes are created.) If you have a set of tables from which you create a ... MERGE tables can help you solve the following problems: Easily manage a set of log ...
https://dev.mysql.com/doc/refman/8.0/en/merge-table-problems.html
It is not possible to merge multiple MyISAM tables into a single MERGE table that would have more than this number of rows. As a workaround, use ALTER TABLE to ensure that all involved tables have the same PACK_KEYS value. The following are known ...
https://dev.mysql.com/doc/refman/8.0/en/multiple-unix-servers.html
To configure a new 8.0.43 server to have different operating parameters, use a CMake command something like this: $> cmake . Note The discussion here uses mysqld_safe to launch multiple instances of MySQL. For MySQL installation using an RPM ...
https://dev.mysql.com/doc/refman/8.0/en/myisam-crash-recovery.html
If you can be certain that no one can access the tables using mysqld while you run myisamchk, you only have to execute mysqladmin flush-tables before you start checking the tables. Normally the use of two --quick options is useful only if you have ... This section describes how to check for and deal with data corruption in MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/myisamchk-check-options.html
--check-only-changed, -C Command-Line Format --check-only-changed Check only tables that have changed since the last check. If you are using --extend-check and have plenty of memory, setting the key_buffer_size variable to a large value helps the ...
https://dev.mysql.com/doc/refman/8.0/en/myisamchk-memory.html
For example, if you have more than 512MB RAM available, you could use options such as these (in addition to any other options you might specify): myisamchk --myisam_sort_buffer_size=256M \ --key_buffer_size=512M \ --read_buffer_size=64M \ ...
https://dev.mysql.com/doc/refman/8.0/en/myisamchk-repair-options.html
(In the unlikely case that --recover fails, the data file remains intact.) If you have lots of memory, you should increase the value of myisam_sort_buffer_size. If you have lots of memory, you should increase the value of key_buffer_size.