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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-mgm-client-commands.html
CREATE NODEGROUP nodeid[, nodeid, ...] Creates a new NDB Cluster node group and causes data nodes to join it. This command is used after adding new data nodes online to an NDB Cluster, and causes them to join a new node group and thus to begin ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-config-values.html
By joining the two tables on these columns, you can obtain detailed information about desired node configuration parameters. The config_values table, implemented in NDB 7.5.0, provides information about the current state of node configuration ...
https://dev.mysql.com/doc/refman/5.7/en/subqueries.html
They provide alternative ways to perform operations that would otherwise require complex joins and unions. Many people find subqueries more readable than complex joins or unions. A subquery can contain many of the keywords or clauses that an ...All ...
https://dev.mysql.com/doc/refman/5.7/en/using-explain.html
That is, MySQL explains how it would process the statement, including information about how tables are joined and in which order. You can also use EXPLAIN to check whether the optimizer joins the tables in an optimal order. To give a hint to the ...
https://dev.mysql.com/doc/refman/5.7/en/xml-functions.html
To find elements for which the same attribute matches any of several values, you can use multiple locators joined by the | operator. Note The difference between or and | is that or joins conditions, while | joins result sets. Table 12.16 XML ...
https://dev.mysql.com/doc/refman/5.7/en/ansi-diff-foreign-keys.html
For example, if you define a RESTRICT type constraint, and there is a child row with several parent rows, InnoDB does not permit the deletion of any of the parent rows. If ON UPDATE CASCADE or ON UPDATE SET NULL recurses to update the same table it ...
https://dev.mysql.com/doc/refman/5.7/en/audit-log-file-formats.html
For example, the following statement generates one Query event, two TableRead events, and a TableInsert events: INSERT INTO t3 SELECT t1.* FROM t1 JOIN t2; Each TableXXX event contains <TABLE> and <DB> elements to identify the table to which the ...
https://dev.mysql.com/doc/refman/5.7/en/comparisons-using-subqueries.html
Here is an example of a common-form subquery comparison that you cannot do with a join. The most common use of a subquery is in the form: non_subquery_operand comparison_operator (subquery) Where comparison_operator is one of these operators: = > < ...
https://dev.mysql.com/doc/refman/5.7/en/create-tablespace.html
The precise syntax and semantics depend on the storage engine used. In standard MySQL 5.7 releases, this is always an InnoDB tablespace. MySQL NDB Cluster 7.5 also supports tablespaces using the NDB storage engine in addition to those using InnoDB.
https://dev.mysql.com/doc/refman/5.7/en/dba-dtrace-mysqld-ref.html
MySQL supports the following static probes, organized into groups of functionality. To identify each argument within the definitions they are provided with a descriptive name, but you must access the information using the corresponding argN ...