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https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html
For more information, see Section 14.19.3, “MySQL Handling of GROUP BY”. Examples: SELECT SEC_TO_TIME(SUM(TIME_TO_SEC(time_col))) FROM tbl_name; SELECT FROM_DAYS(SUM(TO_DAYS(date_col))) FROM tbl_name; Functions such as SUM() or AVG() that expect ... This section describes aggregate functions that operate on sets of ...
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. This section describes how to assign a password to the initial root account created during ...
https://dev.mysql.com/doc/refman/8.0/en/enterprise-encryption-functions.html
In releases from MySQL 8.0.30, MySQL Enterprise Encryption's functions are provided by the MySQL component component_enterprise_encryption. For information on upgrading to the new component functions provided by the MySQL component ...If the ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-mgm-client-commands.html
MySQL Cluster Manager handles starting and stopping processes and tracks their states internally, so it is not necessary to use ndb_mgm for these tasks for an NDB Cluster that is under MySQL Cluster Manager control. Since there is currently no way ... In addition to the central configuration file, a cluster may also be controlled through a command-line interface available through the management client ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-size-pl.html
This is a Perl script that can be used to estimate the amount of space that would be required by a MySQL database if it were converted to use the NDBCLUSTER storage engine. However, it does need to access the MySQL server on which the database to ...Unlike the other utilities discussed in this section, it does not require access to an NDB Cluster (in fact, there is no reason for it to do ...
https://dev.mysql.com/doc/refman/8.0/en/solaris-installation-pkg.html
Note MySQL 5.7 has a dependency on the Oracle Developer Studio Runtime Libraries; but this does not apply to MySQL 8.0. You can install MySQL on Solaris using a binary package of the native Solaris PKG format instead of the binary tarball ...
https://dev.mysql.com/doc/refman/8.0/en/atomic-ddl.html
Atomic DDL is made possible by the introduction of the MySQL data dictionary in MySQL 8.0. In earlier MySQL versions, metadata was stored in metadata files, nontransactional tables, and storage engine-specific dictionaries, which necessitated ...An ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-show-tables.html
--connect-retries Command-Line Format --connect-retries=# Type Integer Default Value 12 Minimum Value 0 Maximum Value 12 Number of times to retry connection before giving up. --loops, -l Specifies the number of times the utility should execute. Note ... ndb_show_tables displays a list of all NDB database objects in the ...
https://dev.mysql.com/doc/refman/8.0/en/internal-temporary-tables.html
For queries that use the SQL_SMALL_RESULT modifier, MySQL uses an in-memory temporary table, unless the query also contains elements (described later) that require on-disk storage. SELECT statements that select from and insert into the same table, ... In some cases, the server creates internal temporary tables while processing ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-quick.html
First, you need to create a configuration directory such as /var/lib/mysql-cluster, by executing the following command as the system root user: $> mkdir /var/lib/mysql-cluster In this directory, create a file named config.ini that contains the ...