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https://dev.mysql.com/doc/refman/5.7/en/create-table-ndb-comment-options.html
NDB_COLUMN Options NDB_TABLE Options It is possible to set a number of options specific to NDB Cluster in the table comment or column comments of an NDB table. Table-level options for controlling read from any replica and partition balance can be ...
https://dev.mysql.com/doc/refman/5.7/en/explain-for-connection.html
To obtain the execution plan for an explainable statement executing in a named connection, use this statement: EXPLAIN [options] FOR CONNECTION connection_id; EXPLAIN FOR CONNECTION returns the EXPLAIN information that is currently being used to ...
https://dev.mysql.com/doc/refman/5.7/en/explain.html
Obtaining Execution Plan Information The EXPLAIN statement provides information about how MySQL executes statements: EXPLAIN works with SELECT, DELETE, INSERT, REPLACE, and UPDATE statements. In practice, the DESCRIBE keyword is more often used to ...
https://dev.mysql.com/doc/refman/5.7/en/gone-away.html
An INSERT or REPLACE statement that inserts a great many rows can also cause these sorts of errors. Either one of these statements sends a single request to the server irrespective of the number of rows to be inserted; thus, you can often avoid the ... This section also covers the related Lost connection to server during query ...
https://dev.mysql.com/doc/refman/5.7/en/json-function-reference.html
Table 12.22 JSON Functions Name Description Deprecated -> Return value from JSON column after evaluating path; equivalent to JSON_EXTRACT(). ->> Return value from JSON column after evaluating path and unquoting the result; equivalent to ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-perror.html
Added to the MySQL NDB Cluster distribution in NDB 7.6, it is intended as a drop-in replacement for perror --ndb. ndb_perror replaces perror --ndb, which is deprecated in NDB 7.6 and subject to removal in a future release of MySQL NDB Cluster.
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndbmtd.html
In other words, a data node running ndbd can be stopped, the binary replaced with ndbmtd, and then restarted without any loss of data. ndbmtd is a multithreaded version of ndbd, the process that is used to handle all the data in tables using the ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-enterprise-data-masking.html
Data masking hides sensitive information by replacing real values with substitutes. MySQL Enterprise Data Masking and De-Identification functions enable masking existing data using several methods such as obfuscation (removing identifying ... MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-enterprise-security.html
MySQL Enterprise Edition includes a suite of masking and de-identification functions that perform subsetting, random generation, and dictionary replacement to de-identify strings, numerics, phone numbers, emails and more. These functions enable ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-indexes.html
In this case, MySQL does a single key lookup for each MIN() or MAX() expression and replaces it with a constant. If all expressions are replaced with constants, the query returns at once. Indexes are used to find rows with specific column values ...