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https://dev.mysql.com/doc/refman/8.0/en/forcing-innodb-recovery.html
If you encounter a runaway rollback caused by a failing mass import or ALTER TABLE, you can kill the mysqld process and set innodb_force_recovery to 3 to bring the database up without the rollback, and then DROP the table that is causing the runaway ... To investigate database page corruption, you might dump your tables from the database with SELECT ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-undo-tablespaces.html
An undo tablespace not found before recovery cannot be used, which can lead to database inconsistencies. As of MySQL 8.0.14, undo tablespaces can be dropped using DROP UNDO TABALESPACE syntax. Dropping Undo Tablespaces As of MySQL 8.0.14, undo ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-introduction.html
INFORMATION_SCHEMA provides access to database metadata, information about the MySQL server such as the name of a database or table, the data type of a column, or access privileges. Although you can select INFORMATION_SCHEMA as the default database ...Other terms that are sometimes used for this information are data dictionary and system ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-memcached-porting-mysql.html
For example, prepend the table name, or the database name and the table name, before the numeric value. The db_schema column is set to test, which is the name of the database where the multicol table resides. This technique lets you issue simple ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-migration.html
On Windows, InnoDB always stores database and table names internally in lowercase. To move databases in a binary format from Unix to Windows or from Windows to Unix, create all databases and tables using lowercase names. MySQL Enterprise Backup The ... This section describes techniques for moving or copying some or all InnoDB tables to a different server or ...
https://dev.mysql.com/doc/refman/8.0/en/replication-rules.html
For statements affecting databases only (that is, CREATE DATABASE, DROP DATABASE, and ALTER DATABASE), database-level options always take precedence over any --replicate-wild-do-table options. On the source, you can control which databases to log ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-mysql-cluster.html
How do I import an existing MySQL database into an NDB Cluster? A.10.28. What do “NDB” and “NDBCLUSTER” mean? “NDB” stands for “Network Database”. There must be sufficient memory on machines used for data nodes to hold each node's ...
https://dev.mysql.com/doc/refman/8.0/en/analyze-table.html
DROP DATABASE removes histograms for any table in the dropped database because the statement drops all tables in the database. [WITH N BUCKETS] ANALYZE [NO_WRITE_TO_BINLOG | LOCAL] TABLE tbl_name UPDATE HISTOGRAM ON col_name [USING DATA 'json_data'] ...ANALYZE [NO_WRITE_TO_BINLOG | LOCAL] TABLE tbl_name UPDATE HISTOGRAM ON col_name [, col_name] ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-mgm-client-commands.html
DROP NODEGROUP nodegroup_id Drops the NDB Cluster node group with the given nodegroup_id. This command can be used to drop a node group from an NDB Cluster. DROP NODEGROUP takes as its sole argument the node group ID of the node group to be dropped.
https://dev.mysql.com/doc/refman/8.0/en/data-masking-plugin-installation.html
This section describes how to install or uninstall MySQL Enterprise Data Masking and De-Identification, which is implemented as a plugin library file containing a plugin and several loadable functions. For general information about installing or ...