https://dev.mysql.com/derived-tables.html
For information about lateral derived tables preceded by the LATERAL keyword, see Section 13.2.11.9, “Lateral Derived Tables”. A derived table is an expression that generates a table within the scope of a query FROM clause. For example, a ...
https://dev.mysql.com/distinct-optimization.html
When combining LIMIT row_count with DISTINCT, MySQL stops as soon as it finds row_count unique rows. DISTINCT combined with ORDER BY needs a temporary table in many cases. Because DISTINCT may use GROUP BY, learn how MySQL works with columns in ...
https://dev.mysql.com/events-overview.html
MySQL Events have the following major features and properties: In MySQL, an event is uniquely identified by its name and the schema to which it is assigned. MySQL Events are tasks that run according to a schedule. When you create an event, you are ...
https://dev.mysql.com/events-stages-current-table.html
The THREAD_ID and EVENT_ID values taken together uniquely identify the row. The table stores one row per thread showing the current status of the thread's most recent monitored stage event, so there is no system variable for configuring the table ...
https://dev.mysql.com/events-transactions-current-table.html
The THREAD_ID and EVENT_ID values taken together uniquely identify the row. The table stores one row per thread showing the current status of the thread's most recent monitored transaction event, so there is no system variable for configuring the ...
https://dev.mysql.com/example-auto-increment.html
You can also explicitly assign 0 to the column to generate sequence numbers, unless the NO_AUTO_VALUE_ON_ZERO SQL mode is enabled. For example: INSERT INTO animals (id,name) VALUES(0,'groundhog'); If the column is declared NOT NULL, it is also ...
https://dev.mysql.com/faqs-general.html
The auto_increment_increment value should be greater than the number of servers, and each server should have a unique offset. Why did MySQL version numbering skip versions 6 and 7 and go straight to 8.0? A.1.3. Does MySQL 8.0 have a NOW() function ...
https://dev.mysql.com/firewall-usage.html
The firewall maintains whitelist rules on a per-account basis, enabling implementation of protection strategies such as these: For an application that has unique protection requirements, configure it to use an account that is not used for any other ... Before using MySQL Enterprise Firewall, install it according to the instructions provided in Section 6.4.7.2, “Installing or Uninstalling MySQL Enterprise ...
https://dev.mysql.com/fulltext-natural-language.html
Relevance is computed based on the number of words in the row (document), the number of unique words in the row, the total number of words in the collection, and the number of rows that contain a particular word. By default or with the IN NATURAL ...
https://dev.mysql.com/func-op-summary-ref.html
->> Return value from JSON column after evaluating path and unquoting the result; equivalent to JSON_UNQUOTE(JSON_EXTRACT()). GTID_SUBTRACT() Return all GTIDs in set that are not in subset. WEEK() Return the week number WEEKDAY() Return the weekday ...
