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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-params-mgmd.html
The listing in this section provides information about parameters used in the [ndb_mgmd] or [mgm] section of a config.ini file for configuring NDB Cluster management nodes. For detailed descriptions and other additional information about each of ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-metadata-locks-table.html
Metadata locking applies not just to tables, but also to schemas, stored programs (procedures, functions, triggers, scheduled events), tablespaces, user locks acquired with the GET_LOCK() function (see Section 14.14, “Locking Functions”), and ...
https://dev.mysql.com/doc/refman/8.0/en/show-plugins.html
This is the name used to refer to the plugin file in statements such as INSTALL PLUGIN and UNINSTALL PLUGIN. This file is located in the directory named by the plugin_dir system variable. For information about plugin data structures that form the ...
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode.html
The UTF-8 (Unicode Transformation Format with 8-bit units) method for encoding Unicode data is implemented according to RFC 3629, which describes encoding sequences that take from one to four bytes. Other database systems might use little-endian ...
https://dev.mysql.com/doc/refman/8.0/en/datetime.html
The TIMESTAMP data type is used for values that contain both date and time parts. The TIMESTAMP and DATETIME data types offer automatic initialization and updating to the current date and time. This section describes their characteristics, how they ...MySQL recognizes DATE, DATETIME, and TIMESTAMP values in several formats, described in Section 11.1.3, “Date and Time ...
https://dev.mysql.com/doc/refman/8.0/en/entering-queries.html
At this point, it is more important to find out a little about how to issue queries than to jump right in creating tables, loading data into them, and retrieving data from them. Normally, column labels are the names of the columns you fetch from ...
https://dev.mysql.com/doc/refman/8.0/en/json-functions.html
For discussion of the JSON data type and additional examples showing how to use these functions, see Section 13.5, “The JSON Data Type”. For functions that take a JSON argument, an error occurs if the argument is not a valid JSON value. The ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-limitations-database-objects.html
Some database objects such as tables and indexes have different limitations when using the NDBCLUSTER storage engine: Number of database objects. The maximum number of all NDB database objects in a single NDB Cluster—including databases, tables, ...The maximum number of attributes (that is, columns and indexes) that can belong to a given table is ...
https://dev.mysql.com/doc/refman/8.0/en/thread-commands.html
Long Data The thread is retrieving long data in the result of executing a prepared statement. A thread can have any of the following Command values: Binlog Dump This is a thread on a replication source for sending binary log contents to a replica.
https://dev.mysql.com/doc/refman/8.0/en/year.html
Note As of MySQL 8.0.19, the YEAR(4) data type with an explicit display width is deprecated and you should expect support for it to be removed in a future version of MySQL. MySQL 8.0 does not support the 2-digit YEAR(2) data type permitted in older ... The YEAR type is a 1-byte type used to represent year ...It can be declared as YEAR with an implicit display width of 4 ...