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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-events.html
This table provides information about event subscriptions in NDB. The columns of the events table are listed here, with short descriptions of each: event_id The event ID name The name of the event table_id The ID of the table on which the event ...
https://dev.mysql.com/doc/refman/8.0/en/user-resources.html
Only statements that modify databases or tables count against the update limit. An “account” in this context corresponds to a row in the mysql.user system table. That is, a connection is assessed against the User and Host values in the user ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-undo-tablespaces.html
To empty an undo tablespace, the undo tablespace must first be marked as inactive using ALTER UNDO TABLESPACE syntax so that the tablespace is no longer used for assigning rollback segments to new transactions. ALTER UNDO TABLESPACE tablespace_name ... Undo tablespaces contain undo logs, which are collections of records containing information about how to undo the latest change by a transaction to a clustered index ...
https://dev.mysql.com/doc/refman/8.0/en/archive-storage-engine.html
The ARCHIVE storage engine produces special-purpose tables that store large amounts of unindexed data in a very small footprint. When you create an ARCHIVE table, the storage engine creates files with names that begin with the table name. The ...To ...
https://dev.mysql.com/doc/refman/8.0/en/backup-types.html
This type of backup is suitable for large, important databases that need to be recovered quickly when problems occur. Logical backups save information represented as logical database structure (CREATE DATABASE, CREATE TABLE statements) and content ... This section describes the characteristics of different types of ...
https://dev.mysql.com/doc/refman/8.0/en/blackhole-storage-engine.html
When you create a BLACKHOLE table, the server creates the table definition in the global data dictionary. That is, you can include index declarations in the table definition. Inserts into a BLACKHOLE table do not store any data, but if statement ...
https://dev.mysql.com/doc/refman/8.0/en/bug-reports.html
If a database table is related to the problem, include the output from the SHOW CREATE TABLE db_name.tbl_name statement in the bug report. This is a very easy way to get the definition of any table in a database. You should also include the output ... Before posting a bug report about a problem, please try to verify that it is a bug and that it has not been reported already: Start by searching the MySQL online manual at ...
https://dev.mysql.com/doc/refman/8.0/en/condition-filtering.html
In join processing, prefix rows are those rows passed from one table in a join to the next. In general, the optimizer attempts to put tables with low prefix counts early in the join order to keep the number of row combinations from increasing ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-triggers.html
Can a table have multiple triggers with the same trigger event and action time? A.5.11. Is it possible for a trigger to update tables on a remote server? A.5.12. Information about triggers can be obtained by querying the INFORMATION_SCHEMA.TRIGGERS ...Where can I find the documentation for MySQL 8.0 triggers? ...
https://dev.mysql.com/doc/refman/8.0/en/fulltext-natural-language.html
For each row in the table, MATCH() returns a relevance value; that is, a similarity measure between the search string and the text in that row in the columns named in the MATCH() list. The search must be performed using a full-text index scan rather ... By default or with the IN NATURAL LANGUAGE MODE modifier, the MATCH() function performs a natural language search for a string against a text ...