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https://dev.mysql.com/doc/refman/9.7/en/validate-password-options-variables.html
This section describes the system and status variables that validate_password provides to enable its operation to be configured and monitored. This applies only when changing an existing password, and has no effect when setting a user account's ...
https://dev.mysql.com/doc/refman/9.7/en/index-statistics.html
Storage engines collect statistics about tables for use by the optimizer. Table statistics are based on value groups, where a value group is a set of rows with the same key prefix value. For optimizer purposes, an important statistic is the average ...
https://dev.mysql.com/doc/refman/9.7/en/glossary.html
These terms are commonly used in information about the MySQL database server. Files with this extension are always included in backups produced by the mysqlbackup command of the MySQL Enterprise Backup product. Files with this extension are always ...
https://dev.mysql.com/doc/refman/9.7/en/firewall-plugin.html
This section contains information about the MySQL Enterprise Firewall plugin. Important The firewall plugin is deprecated in favor of a firewall component which implements most of the same functionality but uses the superior component architecture.
https://dev.mysql.com/doc/refman/9.7/en/group-replication-failure-detection.html
Group Replication’s failure detection mechanism is a distributed service which is able to identify that a server in the group is not communicating with the others, and is therefore suspected of being out of service. If the group’s consensus is ...
https://dev.mysql.com/doc/refman/9.7/en/group-replication-throttling.html
Based on the metrics gathered across all servers in the group, a throttling mechanism kicks in and decides whether to limit the rate a member is able to execute/commit new transactions. Therefore, metrics acquired from all members are the basis for ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-statement-digests.html
The MySQL server is capable of maintaining statement digest information. The digesting process converts each SQL statement to normalized form (the statement digest) and computes a SHA-256 hash value (the digest hash value) from the normalized ...
https://dev.mysql.com/doc/refman/9.7/en/server-system-variables.html
The MySQL server maintains many system variables that affect its operation. Most system variables can be set at server startup using options on the command line or in an option file. Most of them can be changed dynamically at runtime using the SET ...
https://dev.mysql.com/doc/refman/9.7/en/create-table-foreign-keys.html
MySQL supports foreign keys, which permit cross-referencing related data across tables, and foreign key constraints, which help keep the related data consistent. A foreign key relationship involves a parent table that holds the initial column ...
https://dev.mysql.com/doc/refman/9.7/en/charset-examples.html
The following examples show how MySQL determines default character set and collation values. Example 1: Table and Column Definition CREATE TABLE t1 ( c1 CHAR(10) CHARACTER SET latin1 COLLATE latin1_german1_ci ) DEFAULT CHARACTER SET latin2 COLLATE ...