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https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-javascript-indexes-create.html
If a collection is large and queries on a specific field are common, then consider creating an index on a specific field inside a document. Indexes are used to find documents with specific field values quickly. Without an index, MySQL must begin ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-python-documents-index.html
If a collection is large and queries on a specific field are common, then consider creating an index on a specific field inside a document. Indexes are used to find documents with specific field values quickly. Without an index, MySQL must begin ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlbinlog.html
The server's binary log consists of files containing “events” that describe modifications to database contents. To display their contents in text format, use the mysqlbinlog utility. You can also use mysqlbinlog to display the contents of relay ...
https://dev.mysql.com/doc/refman/8.0/en/non-typed-operators.html
->> Return value from JSON column after evaluating path and unquoting the result; equivalent to JSON_UNQUOTE(JSON_EXTRACT()). / Division operator := Assign a value = Assign a value (as part of a SET statement, or as part of the SET clause in an ...
https://dev.mysql.com/doc/refman/8.0/en/optimize-overview.html
Database performance depends on several factors at the database level, such as tables, queries, and configuration settings. This time improves slowly with new disks and is very hard to optimize for a single table. These software constructs result ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-spatial-analysis.html
The most typical operations are: Point queries that search for all objects that contain a given point Region queries that search for all objects that overlap a given region MySQL uses R-Trees with quadratic splitting for SPATIAL indexes on spatial ... For MyISAM and InnoDB tables, search operations in columns containing spatial data can be optimized using SPATIAL ...
https://dev.mysql.com/doc/refman/8.0/en/pam-pluggable-authentication.html
Note PAM pluggable authentication is an extension included in MySQL Enterprise Edition, a commercial product. MySQL Enterprise Edition supports an authentication method that enables MySQL Server to use PAM (Pluggable Authentication Modules) to ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-error-log-table.html
Granting the SELECT privilege for the error_log table thus gives clients and applications access to error log contents using SQL queries, enabling DBAs to provide access to the log without the need to permit direct file system access on the server ... Of the logs the MySQL server maintains, one is the error log to which it writes diagnostic messages (see Section 7.4.2, “The Error ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-instrumentation-checking.html
It is always possible to determine what instruments the Performance Schema includes by checking the setup_instruments table. Changes to this code occur often, which also affects the set of instruments. It is not practical to list all the ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-tables.html
By contrast, using the Performance Schema tables, information about replica status can be searched using general SELECT queries, including complex WHERE conditions, joins, and so forth. This is similar to the information available from the SHOW ...