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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-server-locks.html
The server_locks table is similar in structure to the cluster_locks table, and provides a subset of the information found in the latter table, but which is specific to the SQL node (MySQL server) where it resides. (The cluster_locks table provides ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-security-networking-issues.html
In this section, we discuss basic network security issues as they relate to NDB Cluster. It is extremely important to remember that NDB Cluster “out of the box” is not secure; you or your network administrator must take the proper steps to ...
https://dev.mysql.com/doc/refman/5.7/en/nested-loop-joins.html
MySQL executes joins between tables using a nested-loop algorithm or variations on it. Nested-Loop Join Algorithm Block Nested-Loop Join Algorithm Nested-Loop Join Algorithm A simple nested-loop join (NLJ) algorithm reads rows from the first table ...
https://dev.mysql.com/doc/refman/5.7/en/spatial-function-reference.html
The following table lists each spatial function and provides a short description of each one.
https://dev.mysql.com/doc/refman/5.7/en/using-systemd.html
If you install MySQL from a source distribution on a platform that uses systemd, obtain systemd support for MySQL by configuring the distribution using the -DWITH_SYSTEMD=1 CMake option. The following discussion covers these topics: Overview of ...
https://dev.mysql.com/doc/refman/5.7/en/x-plugin-status-variables.html
If the bind has failed, or if the skip_networking option has been used, the value shows UNDEFINED. Mysqlx_errors_unknown_message_type The number of unknown message types that have been received. Mysqlx_notice_other_sent The number of other types of ...
https://dev.mysql.com/doc/refman/5.7/en/charset-collation-coercibility.html
For example, this statement performs a comparison between the column x and the string literal 'Y': SELECT x FROM T WHERE x = 'Y'; If x and 'Y' have the same collation, there is no ambiguity about the collation to use for the comparison. For example, ... In the great majority of statements, it is obvious what collation MySQL uses to resolve a comparison ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-statistics-table.html
This can have values A (ascending), D (descending), or NULL (not sorted). That is, the number of indexed characters if the column is only partly indexed, NULL if the entire column is indexed. However, prefix lengths for index specifications in ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-command-options.html
--binary-as-hex when enabled affects display of all binary strings, including those returned by functions such as CHAR() and UNHEX(). By default, mysql translates \r\n in statement strings to \n and interprets \0 as the statement terminator. mysql ...
https://dev.mysql.com/doc/refman/5.7/en/regexp.html
Table 12.14 Regular Expression Functions and Operators Name Description NOT REGEXP Negation of REGEXP REGEXP Whether string matches regular expression RLIKE Whether string matches regular expression A regular expression is a powerful way of ...This ...