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https://dev.mysql.com/doc/refman/8.0/en/charset-binary-collations.html
Binary strings are sequences of bytes and the numeric values of those bytes determine comparison and sort order. The binary collation differs from _bin collations in several respects, discussed in the following sections: The Unit for Comparison and ... This section describes how the binary collation for binary strings compares to _bin collations for nonbinary ...
https://dev.mysql.com/doc/refman/8.0/en/optimizer-hints.html
*/ C-style comment syntax, with a + character following the /* comment opening sequence. Consider this sequence of statements: SET @saved_val = @@SESSION.var_name; SET @@SESSION.var_name = value; SELECT ... SET @@SESSION.var_name = @saved_val; The ... One means of control over optimizer strategies is to set the optimizer_switch system variable (see Section 10.9.2, “Switchable ...
https://dev.mysql.com/doc/refman/8.0/en/account-categories.html
For example, the CREATE USER privilege enables not only creation of new accounts, but modification and removal of existing accounts. Without the system user concept, a user who has the CREATE USER privilege can modify or drop any existing account, ... As of MySQL 8.0.16, MySQL incorporates the concept of user account categories, based on the SYSTEM_USER ...
https://dev.mysql.com/doc/refman/8.0/en/drop-tablespace.html
DROP [UNDO] TABLESPACE tablespace_name [ENGINE [=] engine_name] This statement drops a tablespace that was previously created using CREATE TABLESPACE. Only undo tablespaces created using CREATE UNDO TABLESPACE syntax can be dropped. If it is not ...
https://dev.mysql.com/doc/refman/8.0/en/events-privileges.html
The EVENT privilege governs the creation, modification, and deletion of events. In this example, the EVENT privilege on the schema myschema is removed from the jon@ghidora user account: REVOKE EVENT ON myschema.* FROM jon@ghidora; Important Revoking ... To enable or disable the execution of scheduled events, it is necessary to set the value of the global event_scheduler system ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlbinlog.html
There is an exception for CREATE DATABASE, ALTER DATABASE, and DROP DATABASE. The database being created, altered, or dropped is considered to be the default database when determining whether to output the statement. Suppose that the binary log just ... The server's binary log consists of files containing “events” that describe modifications to database ...
https://dev.mysql.com/doc/refman/8.0/en/ndb-restore-different-number-nodes.html
See Section 25.6.8.2, “Using The NDB Cluster Management Client to Create a Backup”, for information about how to do this. The files created by the backup on each data node are listed here, where N is the node ID and B is the backup ID. Note When ... It is possible to restore from an NDB backup to a cluster having a different number of data nodes than the original from which the backup was ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-selection.html
When a table is created using [LINEAR] HASH or [LINEAR] KEY partitioning and the names of the partitions are not specified, MySQL automatically names the partitions p0, p1, p2, ..., pN-1, where N is the number of partitions. Explicit selection of ...
https://dev.mysql.com/doc/refman/8.0/en/show-grants.html
Note To display nonprivilege information for MySQL accounts, use the SHOW CREATE USER statement. SHOW GRANTS [FOR user_or_role [USING role [, role] ...]] user_or_role: { user (see Section 8.2.4, “Specifying Account Names”) | role (see Section ...
https://dev.mysql.com/doc/refman/8.0/en/sql-prepared-statements.html
To create a test case that reproduces a problem with prepared statements, so that you can file a bug report. If you create a prepared statement within a stored routine, it is not deallocated when the stored routine ends. To guard against too many ...