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https://dev.mysql.com/doc/refman/8.4/en/charset-unicode-sets.html
For supplementary characters in general collations, the weight is the weight for 0xfffd REPLACEMENT CHARACTER. This section describes the collations available for Unicode character sets and their differentiating properties. MySQL supports multiple ...
https://dev.mysql.com/doc/refman/8.4/en/generated-column-index-optimizations.html
row *************************** id: 1 select_type: SIMPLE table: t1 partitions: NULL type: range possible_keys: gc key: gc key_len: 5 ref: NULL rows: 1 filtered: 100.00 Extra: Using index condition In effect, the optimizer has replaced the ...For ...
https://dev.mysql.com/doc/refman/8.4/en/merge-table-problems.html
Because the MERGE engine cannot enforce uniqueness over the set of underlying tables, REPLACE does not work as expected. The two key facts are: REPLACE can detect unique key violations only in the underlying table to which it is going to write ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-shell-tutorial-javascript-table-update.html
To replace a city name in the city table, pass to the set() method the new city name. Then, pass to the where() method the city name to locate and replace. You can use the update() method to modify one or more records in a table. The update() ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-shell-tutorial-python-table-update.html
To replace a city name in the city table, pass to the set() method the new city name. Then, pass to the where() method the city name to locate and replace. You can use the update() method to modify one or more records in a table. The update() ...
https://dev.mysql.com/doc/refman/8.4/en/range-optimization.html
The correct way to remove them is to replace them with TRUE, so that we do not miss any matching rows when doing the range scan. The range access method uses a single index to retrieve a subset of table rows that are contained within one or several ...
https://dev.mysql.com/doc/refman/8.4/en/resetting-permissions.html
Replace the password with the password that you want to use. Replace the password with the password that you want to use. Replace the password with the password that you want to use. If you have never assigned a root password for MySQL, the server ...
https://dev.mysql.com/doc/refman/8.4/en/webauthn-pluggable-authentication.html
This might be desirable or necessary under multiple circumstances: A FIDO/FIDO2 device is to be replaced with a different device. Note WebAuthn authentication is an extension included in MySQL Enterprise Edition, a commercial product. MySQL ...
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-install-tarball.html
In the second of these lines, replace the placeholder @@MCMD_USER@@ with the name of the system user that runs the MySQL Cluster Manager agent (note that this must not be the system root account). Extract the MySQL Cluster Manager 8.4.6 program and ...
https://dev.mysql.com/doc/extending-mysql/8.4/en/writing-full-text-plugins.html
A full-text parser plugin can be used to replace or modify the built-in full-text parser. Use this callback when the parser plugin replaces the built-in parser. The main parsing function, simple_parser_parse(), acts as a replacement for the built-in ... MySQL supports server-side full-text parser plugins with MyISAM and ...