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https://dev.mysql.com/doc/refman/5.7/en/performance-schema-startup-configuration.html
Longer instrument name strings take precedence over shorter pattern names, regardless of order. To use the MySQL Performance Schema, it must be enabled at server startup to enable event collection to occur. Assuming that the Performance Schema is ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-statement-tables.html
This may be helpful for purposes such as identifying clients that are misconfigured or using a version of MySQL more recent than that of the server, or clients that are attempting to attack the server. Statement events occur at a high level of the ...
https://dev.mysql.com/doc/refman/5.7/en/populating-spatial-columns.html
In a C program, you can escape a binary value using mysql_real_escape_string_quote() and include the result in a query string that is sent to the server. After you have created spatial columns, you can populate them with spatial data. Values should ...
https://dev.mysql.com/doc/refman/5.7/en/precision-math-decimal-characteristics.html
For a full explanation of the internal format of DECIMAL values, see the file strings/decimal.c in a MySQL source distribution. This section discusses the characteristics of the DECIMAL data type (and its synonyms), with particular regard to the ...
https://dev.mysql.com/doc/refman/5.7/en/replication-options.html
System Variable server_uuid Scope Global Dynamic No Type String When starting, the MySQL server automatically obtains a UUID as follows: Attempt to read and use the UUID written in the file data_dir/auto.cnf (where data_dir is the server's data ...
https://dev.mysql.com/doc/refman/5.7/en/replication-rbr-usage.html
This statement displays an event as a base 64-encoded string, the meaning of which is not evident. MySQL uses statement-based logging (SBL), row-based logging (RBL) or mixed-format logging. The type of binary log used impacts the size and ...
https://dev.mysql.com/doc/refman/5.7/en/replication-setup-replicas.html
For a full list of options, and information about the maximum permissible length for the string-valued options, see Section 13.4.2.1, “CHANGE MASTER TO Statement”. Before you proceed, ensure that you have: Configured the source with the ...
https://dev.mysql.com/doc/refman/5.7/en/set-character-set.html
SET {CHARACTER SET | CHARSET} {'charset_name' | DEFAULT} This statement maps all strings sent between the server and the current client with the given mapping. Attempting to use them with SET CHARACTER SET produces an error. SET CHARACTER SET sets ...
https://dev.mysql.com/doc/refman/5.7/en/show-collation.html
Sortlen This is related to the amount of memory required to sort strings expressed in the character set. SHOW COLLATION [LIKE 'pattern' | WHERE expr] This statement lists collations supported by the server. By default, the output from SHOW ...
https://dev.mysql.com/doc/refman/5.7/en/show.html
SHOW has many forms that provide information about databases, tables, columns, or status information about the server. The pattern is useful for restricting statement output to matching values. Several SHOW statements also accept a WHERE clause ...