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https://dev.mysql.com/doc/refman/8.0/en/federated-create-connection.html
To use the first method, you must specify the CONNECTION string after the engine type in a CREATE TABLE statement. For example: CREATE TABLE federated_table ( id INT(20) NOT NULL AUTO_INCREMENT, name VARCHAR(32) NOT NULL DEFAULT '', other INT(20) ...
https://dev.mysql.com/doc/refman/8.0/en/federated-create-server.html
If you are creating a number of FEDERATED tables on the same server, or if you want to simplify the process of creating FEDERATED tables, you can use the CREATE SERVER statement to define the server connection parameters, just as you would with the ...
https://dev.mysql.com/doc/refman/8.0/en/federated-create.html
To create a FEDERATED table you should follow these steps: Create the table on the remote server. Alternatively, make a note of the table definition of an existing table, perhaps using the SHOW CREATE TABLE statement. Create the table on the local ...
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/index-page-merge-threshold.html
If the “page-full” percentage for an index page falls below the MERGE_THRESHOLD value when a row is deleted or when a row is shortened by an UPDATE operation, InnoDB attempts to merge the index page with a neighboring index page. The default ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-memcached-porting-mysql.html
Consider these aspects of memcached applications when adapting an existing MySQL schema or application to use the daemon_memcached plugin: memcached keys cannot contain spaces or newlines, because these characters are used as separators in the ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-troubleshooting-datadict.html
Information about table definitions is stored in the InnoDB data dictionary. If you move data files around, dictionary data can become inconsistent. If a data dictionary corruption or consistency issue prevents you from starting InnoDB, see Section ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-disk-data-objects.html
NDB Cluster Disk Data storage is implemented using the following objects: Tablespace: Acts as containers for other Disk Data objects. A tablespace contains one or more data files and one or more undo log file groups. Undo log file: Contains undo ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-dict-obj-tree.html
The dict_obj_tree table provides a tree-based view of table information from the dict_obj_info table. This is intended primarily for use in testing, but can be useful in visualizing hierarchies of NDB database objects. This means that you must know ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-desc.html
ndb_desc provides a detailed description of one or more NDB tables. Usage ndb_desc -c connection_string tbl_name -d db_name [options] ndb_desc -c connection_string index_name -d db_name -t tbl_name Additional options that can be used with ndb_desc ...