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https://dev.mysql.com/doc/refman/8.0/en/charset-collation-effect.html
latin1_swedish_ci latin1_german1_ci latin1_german2_ci Muffler Muffler Müller MX Systems Müller Muffler Müller MX Systems MX Systems MySQL MySQL MySQL The character that causes the different sort orders in this example is ü (German ...
https://dev.mysql.com/doc/refman/8.0/en/caching-sha2-pluggable-authentication.html
MySQL provides two authentication plugins that implement SHA-256 hashing for user account passwords: caching_sha2_password: Implements SHA-256 authentication (like the deprecated sha256_password), but uses caching on the server side for better ...
https://dev.mysql.com/doc/refman/8.0/en/alter-table.html
ALTER TABLE tbl_name [alter_option [, alter_option] ...] [partition_options] alter_option: { table_options | ADD [COLUMN] col_name column_definition [FIRST | AFTER col_name] | ADD [COLUMN] (col_name column_definition,...) | ADD {INDEX | KEY} ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-persistent-stats.html
The persistent optimizer statistics feature improves plan stability by storing statistics to disk and making them persistent across server restarts so that the optimizer is more likely to make consistent choices each time for a given query.
https://dev.mysql.com/doc/refman/8.0/en/multiple-key-caches.html
Note As of MySQL 8.0, the compound-part structured-variable syntax discussed here for referring to multiple MyISAM key caches is deprecated. Shared access to the key cache improves performance but does not eliminate contention among sessions ...
https://dev.mysql.com/doc/refman/8.0/en/merge-table-problems.html
The following are known problems with MERGE tables: MERGE child tables are locked through the parent table. If the parent is a temporary table, it is not locked, and thus the child tables are also not locked; this means that parallel use of the ...
https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html
This section describes aggregate functions that operate on sets of values. They are often used with a GROUP BY clause to group values into subsets. If you use an aggregate function in a statement containing no GROUP BY clause, it is equivalent to ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-oci-plugin.html
Note The keyring_oci plugin is an extension included in MySQL Enterprise Edition, a commercial product. The keyring_oci plugin is a keyring plugin that communicates with Oracle Cloud Infrastructure Vault for back end storage. No key information is ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-aws-plugin.html
Note The keyring_aws plugin is an extension included in MySQL Enterprise Edition, a commercial product. The keyring_aws keyring plugin communicates with the Amazon Web Services Key Management Service (AWS KMS) as a back end for key generation and ...
https://dev.mysql.com/doc/refman/8.0/en/join.html
MySQL supports the following JOIN syntax for the table_references part of SELECT statements and multiple-table DELETE and UPDATE statements: table_references: escaped_table_reference [, escaped_table_reference] ... index_hint: { USE {INDEX|KEY} ...