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https://dev.mysql.com/doc/refman/5.7/en/internal-temporary-tables.html
SELECT statements that select from and insert into the same table, MySQL creates an internal temporary table to hold the rows from the SELECT, then inserts those rows into the target table. Presence of any string column with a maximum length larger ... In some cases, the server creates internal temporary tables while processing ...
https://dev.mysql.com/doc/refman/5.7/en/locale-support.html
The locale indicated by the lc_time_names system variable controls the language used to display day and month names and abbreviations. This variable affects the output from the DATE_FORMAT(), DAYNAME(), and MONTHNAME() functions. The lc_time_names ...
https://dev.mysql.com/doc/refman/5.7/en/metadata-locking.html
Suppose that a session begins a transaction that uses transactional table t and nontransactional table nt as follows: START TRANSACTION; SELECT * FROM t; SELECT * FROM nt; The server holds metadata locks on both t and nt until the transaction ends.
https://dev.mysql.com/doc/refman/5.7/en/monitor-mysql-memory-use.html
mysql> SELECT * FROM performance_schema.setup_instruments WHERE NAME LIKE '%memory%'; You can narrow results by specifying a code area. mysql> SELECT * FROM sys.memory_global_by_current_bytes WHERE event_name LIKE 'memory/innodb/buf_buf_pool'\G ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-logs-cluster-log.html
(type is one of initial, system, node, initial node, or <Unknown>.) StartPhaseCompleted StartUp 4 INFO Node node_id: CM_REGCONF president = president_id, own Node = own_id, our dynamic id = dynamic_id Node president_id has been selected as ... The ...
21.7.9.1 NDB Cluster Replication: Automating Synchronization of the Replica to the Source Binary Log
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-replication-auto-sync.html
It is possible to automate much of the process described in the previous section (see Section 21.7.9, “NDB Cluster Backups With NDB Cluster Replication”). The following Perl script reset-replica.pl serves as an example of how you can do this.
https://dev.mysql.com/doc/refman/5.7/en/mysql-installer-change-path-proc.html
To change paths for MySQL server Identify the MySQL server to change and enable the Advanced Options link as follows: Navigate to the Select Products page by doing one of the following: If this is an initial setup of MySQL Installer, select the ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-installer.html
To invoke MySQL Installer after a successful installation: Right-click Windows Start, select Run, and then click Browse. Select one of the following files: MySQLInstaller.exe to open the graphical application. If you are prompted to allow the ...
https://dev.mysql.com/doc/refman/5.7/en/no-login-pluggable-authentication.html
For example: mysql> SELECT PLUGIN_NAME, PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE '%login%'; +----------------+---------------+ | PLUGIN_NAME | PLUGIN_STATUS | +----------------+---------------+ | mysql_no_login | ACTIVE | ... The mysql_no_login server-side authentication plugin prevents all client connections to any account that uses ...
https://dev.mysql.com/doc/refman/5.7/en/partitioning-overview.html
The user-selected rule by which the division of data is accomplished is known as a partitioning function, which in MySQL can be the modulus, simple matching against a set of ranges or value lists, an internal hashing function, or a linear hashing ...