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https://dev.mysql.com/doc/refman/8.0/en/thread-pool-operation.html
As connections are established, the thread pool assigns them to thread groups in round-robin fashion. A statement becomes blocked if it encounters a disk I/O operation or a user level lock (row lock or table lock). Thus, given a mix of statements ...
https://dev.mysql.com/doc/refman/8.0/en/update-optimization.html
Performing multiple updates together is much quicker than doing one at a time if you lock the table. For a MyISAM table that uses dynamic row format, updating a row to a longer total length may split the row. If you do this often, it is very ... An ...
https://dev.mysql.com/doc/refman/8.0/en/window-functions-usage.html
For example, if a table contains a TIMESTAMP column named ts, standard SQL permits PARTITION BY ts but not PARTITION BY HOUR(ts), whereas MySQL permits both. However, whereas an aggregate operation groups query rows into a single result row, a ...
https://dev.mysql.com/doc/refman/8.0/en/windows-upgrading.html
Upgrades to MySQL 8.0.16 and higher may show an option to skip the upgrade check and process for system tables. If the server is installed as a service, stop the service with the following command from the command prompt: C:\> SC STOP ... There are ...
https://dev.mysql.com/doc/refman/8.0/en/workbench.html
Data Modeling: Enables you to create models of your database schema graphically, reverse and forward engineer between a schema and a live database, and edit all aspects of your database using the comprehensive Table Editor. The Table Editor provides ... MySQL Workbench provides a graphical tool for working with MySQL servers and ...
https://dev.mysql.com/doc/refman/8.0/en/x-plugin-connection-compression.html
The following table compares the characteristics of the different compression algorithms and shows their assigned priorities. Instead, its default is to permit all algorithms shown in Table 22.1, “X Protocol Compression Algorithm ... From MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/default-privileges.html
The MySQL installation process involves initializing the data directory, including the grant tables in the mysql system schema that define MySQL accounts. Note Alternative means for performing the process described in this section: On Windows, you ...This section describes how to assign a password to the initial root account created during the MySQL installation procedure, if you have not already done ...
https://dev.mysql.com/doc/refman/8.0/en/replication-rules-db-options.html
Proceed to checking the table-level replication options, if there are any. For a description of how these options are checked, see Section 19.2.5.2, “Evaluation of Table-Level Replication Options”. The statement is not executed until all ...
https://dev.mysql.com/doc/refman/8.0/en/show-events.html
Execute At For a one-time event, this is the DATETIME value specified in the AT clause of the CREATE EVENT statement used to create the event, or of the last ALTER EVENT statement that modified the event. This value may be updated by ALTER EVENT to ... SHOW EVENTS [{FROM | IN} schema_name] [LIKE 'pattern' | WHERE expr] This statement displays information about Event Manager events, which are discussed in Section 27.4, “Using the Event ...
https://dev.mysql.com/doc/refman/8.0/en/roles.html
This enables assignment of sets of privileges to accounts and provides a convenient alternative to granting individual privileges, both for conceptualizing desired privilege assignments and implementing them. Instead, use an alternative GRANT syntax ...Like user accounts, roles can have privileges granted to and revoked from ...