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https://dev.mysql.com/doc/refman/8.0/en/information-schema-engines-table.html
The ENGINES table has these columns: ENGINE The name of the storage engine. SUPPORT The server's level of support for the storage engine, as shown in the following table. This is particularly useful for checking whether a storage engine is ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-mysql-firewall-users-table.html
The MYSQL_FIREWALL_USERS table provides a view into the in-memory data cache for MySQL Enterprise Firewall. It is used in conjunction with the mysql.firewall_users system table that provides persistent storage of firewall data; see MySQL Enterprise ...It lists names and operational modes of registered firewall account ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-mysql-firewall-whitelist-table.html
The MYSQL_FIREWALL_WHITELIST table provides a view into the in-memory data cache for MySQL Enterprise Firewall. It is used in conjunction with the mysql.firewall_whitelist system table that provides persistent storage of firewall data; see MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-plugins-table.html
The PLUGINS table has these columns: PLUGIN_NAME The name used to refer to the plugin in statements such as INSTALL PLUGIN and UNINSTALL PLUGIN. For plugins installed with INSTALL PLUGIN, the PLUGIN_NAME and PLUGIN_LIBRARY values are also registered ...PLUGIN_STATUS The plugin status, one of ACTIVE, INACTIVE, DISABLED, DELETING, or ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-profiling-table.html
The table is empty unless the profiling session variable is set to 1. Note This table is deprecated; expect it to be removed in a future MySQL release. The PROFILING table has these columns: QUERY_ID A numeric statement identifier. Its contents ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-referential-constraints-table.html
The REFERENTIAL_CONSTRAINTS table has these columns: CONSTRAINT_CATALOG The name of the catalog to which the constraint belongs. CONSTRAINT_SCHEMA The name of the schema (database) to which the constraint belongs. UNIQUE_CONSTRAINT_CATALOG The name ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-schemata-table.html
A schema is a database, so the SCHEMATA table provides information about databases. The SCHEMATA table has these columns: CATALOG_NAME The name of the catalog to which the schema belongs. Caution Because any static global privilege is considered a ...The following statements are equivalent: SELECT SCHEMA_NAME AS `Database` FROM INFORMATION_SCHEMA.SCHEMATA [WHERE SCHEMA_NAME LIKE 'wild'] SHOW DATABASES [LIKE 'wild'] You see only those databases for which you have some kind of privilege, unless you have the global SHOW DATABASES ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-information-schema-tables.html
Two INFORMATION_SCHEMA tables provide information that is of particular use when managing an NDB Cluster. The FILES table provides information about NDB Cluster Disk Data files (see Section 25.6.11.1, “NDB Cluster Disk Data Objects”). The ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-table-fragments.html
The table_fragments table provides information about the fragmentation, partitioning, distribution, and (internal) replication of NDB tables.
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-cond-instances-table.html
The cond_instances table lists all the conditions seen by the Performance Schema while the server executes. The cond_instances table has these columns: NAME The instrument name associated with the condition. The cond_instances table has these ...A ...