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https://dev.mysql.com/doc/refman/8.0/en/group-replication-enterprise-backup.html
MySQL Enterprise Backup is a commercially-licensed backup utility for MySQL Server, available with MySQL Enterprise Edition. This section explains how to back up and subsequently restore a Group Replication member using MySQL Enterprise Backup. The ...
https://dev.mysql.com/doc/refman/8.0/en/internal-temporary-tables.html
The TempTable storage engine provides efficient storage for VARCHAR and VARBINARY columns, and other binary large object types as of MySQL 8.0.13. VARCHAR and VARBINARY column values are padded to the maximum column length, in effect storing them as ... In some cases, the server creates internal temporary tables while processing ...
https://dev.mysql.com/doc/refman/8.0/en/multiple-tables.html
Given these considerations, the CREATE TABLE statement for the event table might look like this: mysql> CREATE TABLE event (name VARCHAR(20), date DATE, type VARCHAR(15), remark VARCHAR(255)); As with the pet table, it is easiest to load the initial ... The pet table keeps track of which pets you ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-online-add-node-example.html
In this section we provide a detailed example illustrating how to add new NDB Cluster data nodes online, starting with an NDB Cluster having 2 data nodes in a single node group and concluding with a cluster having 4 data nodes in 2 node groups.
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-replication-schema.html
ndb_apply_status Table ndb_binlog_index Table ndb_replication Table Replication in NDB Cluster makes use of a number of dedicated tables in the mysql database on each MySQL Server instance acting as an SQL node in both the cluster being replicated ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-indexes.html
In this context, VARCHAR and CHAR are considered the same if they are declared as the same size. For example, VARCHAR(10) and CHAR(10) are the same size, but VARCHAR(10) and CHAR(15) are not. Indexes are used to find rows with specific column ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlslap.html
--number-char-cols=N, -x N Command-Line Format --number-char-cols=# Type Numeric The number of VARCHAR columns to use if --auto-generate-sql is specified. mysqlslap is a diagnostic program designed to emulate client load for a MySQL server and to ...
https://dev.mysql.com/doc/refman/8.0/en/other-vendor-data-types.html
To facilitate the use of code written for SQL implementations from other vendors, MySQL maps data types as shown in the following table. These mappings make it easier to import table definitions from other database systems into MySQL. If you create ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-key.html
Partitioning by key is similar to partitioning by hash, except that where hash partitioning employs a user-defined expression, the hashing function for key partitioning is supplied by the MySQL server. NDB Cluster uses MD5() for this purpose; for ...
https://dev.mysql.com/doc/refman/8.0/en/silent-column-changes.html
If strict SQL mode is not enabled, a VARCHAR column with a length specification greater than 65535 is converted to TEXT, and a VARBINARY column with a length specification greater than 65535 is converted to BLOB. Specifying the CHARACTER SET binary ... In some cases, MySQL silently changes column specifications from those given in a CREATE TABLE or ALTER TABLE ...