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https://dev.mysql.com/doc/refman/5.7/en/charset-mysql.html
To display the available character sets, use the INFORMATION_SCHEMA CHARACTER_SETS table or the SHOW CHARACTER SET statement. mysql> SHOW CHARACTER SET; +----------+---------------------------------+---------------------+--------+ | Charset | ...For ...
https://dev.mysql.com/doc/refman/5.7/en/diagnostics-area.html
The diagnostics area can be examined with GET DIAGNOSTICS to extract specific items, or with SHOW WARNINGS or SHOW ERRORS to see conditions or errors. These statements are diagnostic: GET DIAGNOSTICS SHOW ERRORS SHOW WARNINGS If a statement raises a ... SQL statements produce diagnostic information that populates the diagnostics ...
https://dev.mysql.com/doc/refman/5.7/en/explain.html
The description for SHOW COLUMNS provides more information about the output columns. The SHOW CREATE TABLE, SHOW TABLE STATUS, and SHOW INDEX statements also provide information about tables. For SELECT statements, EXPLAIN produces additional ...In ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-standard-monitor.html
Standard Monitor output is limited to 1MB when produced using the SHOW ENGINE INNODB STATUS statement. Example Standard Monitor output: mysql> SHOW ENGINE INNODB STATUS\G *************************** 1. Status This section shows the timestamp, the ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-online-add-node-example.html
Note In this example, we show the single-threaded ndbd being used for the data node processes. Restarting the cluster management server requires that you issue separate commands to stop the management server and then to start it again, as follows: ... 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 ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-what-is-new-7-6.html
New features and other important changes in NDB Cluster 7.6 which are likely to be of interest are shown in the following list: New Disk Data table file format. REPORT MEMORYUSAGE and other commands which expose memory consumption now shows index ...A new file format is used in NDB 7.6 for NDB Disk Data tables, which makes it possible for each Disk Data table to be uniquely identified without reusing any table ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-applier-status-by-worker-table.html
If the replica is not multithreaded, this table shows the status of the applier thread. Otherwise, the replica uses multiple worker threads and a coordinator thread to manage them, and this table shows the status of the worker threads. For a ...The ...
https://dev.mysql.com/doc/refman/5.7/en/stored-routines-metadata.html
Use the SHOW CREATE PROCEDURE and SHOW CREATE FUNCTION statements to see routine definitions. Use the SHOW PROCEDURE STATUS and SHOW FUNCTION STATUS statements to see routine characteristics. Use the SHOW PROCEDURE CODE and SHOW FUNCTION CODE ... To ...
https://dev.mysql.com/doc/refman/5.7/en/explain-extended.html
For SELECT statements, the EXPLAIN statement produces extra (“extended”) information that is not part of EXPLAIN output but can be viewed by issuing a SHOW WARNINGS statement following EXPLAIN. The Message value in SHOW WARNINGS output displays ...Note In older MySQL releases, extended information was produced using EXPLAIN ...
https://dev.mysql.com/doc/refman/5.7/en/help.html
To make a more specific request, please type 'help <item>', where <item> is one of the following topics: FLUSH SHOW SHOW ENGINE SHOW FUNCTION STATUS SHOW MASTER STATUS SHOW PROCEDURE STATUS SHOW SLAVE STATUS SHOW STATUS SHOW TABLE STATUS List of ...