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https://dev.mysql.com/doc/refman/5.7/en/innodb-information-schema-tables.html
For related information and examples, see Section 14.16, “InnoDB INFORMATION_SCHEMA Tables”. INFORMATION_SCHEMA InnoDB tables can be used to monitor ongoing InnoDB activity, to detect inefficiencies before they turn into issues, or to ...
https://dev.mysql.com/doc/refman/5.7/en/constraint-foreign-key.html
Foreign keys let you cross-reference related data across tables, and foreign key constraints help keep this spread-out data consistent. MySQL supports ON UPDATE and ON DELETE foreign key references in CREATE TABLE and ALTER TABLE statements. The ...
https://dev.mysql.com/doc/refman/5.7/en/counting-rows.html
The use of COUNT() in conjunction with GROUP BY is useful for characterizing your data under various groupings. The following examples show different ways to perform animal census operations. See Section 12.19.1, “Aggregate Function ...Counting ...
https://dev.mysql.com/doc/refman/5.7/en/join.html
Generally, the ON clause serves for conditions that specify how to join tables, and the WHERE clause restricts which rows to include in the result set. If there is no matching row for the right table in the ON or USING part in a LEFT JOIN, a row ...
https://dev.mysql.com/doc/refman/5.7/en/myisam-start.html
myisam_recover_options=mode Set the mode for automatic recovery of crashed MyISAM tables. Note This is a limit per thread! delay_key_write=ALL Don't flush key buffers between writes for any MyISAM table. myisam_sort_buffer_size Set the size of the ... The following options to mysqld can be used to change the behavior of MyISAM ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-disk-data-objects.html
You can obtain information about data files used by Disk Data tables by querying the FILES table in the INFORMATION_SCHEMA database. These include the following: Tablespaces act as containers for other Disk Data objects. For example, you cannot have ... NDB Cluster Disk Data storage is implemented using a number of Disk Data ...
https://dev.mysql.com/doc/refman/5.7/en/replication-solutions-diffengines.html
Configuring different engines on the source and replica depends on how you set up the initial replication process: If you used mysqldump to create the database snapshot on your source, you could edit the dump file text to change the engine type used ... It does not matter for the replication process whether the source table on the source and the replicated table on the replica use different engine ...
https://dev.mysql.com/doc/refman/5.7/en/solaris-installation-pkg.html
To complete the installation, you should set the root password for MySQL as provided in the instructions at the end of the installation. Removal of the package does not delete the existing database information, only the server, binaries and support ... You can install MySQL on Solaris using a binary package of the native Solaris PKG format instead of the binary tarball ...The installation package enables you to install the runtime libraries ...
https://dev.mysql.com/doc/refman/5.7/en/create-function-loadable.html
CREATE FUNCTION requires the INSERT privilege for the mysql system database because it adds a row to the mysql.func system table to register the function. For more information, see Section 5.6.1, “Installing and Uninstalling Loadable Functions”.
https://dev.mysql.com/doc/refman/5.7/en/drop-function-loadable.html
It requires the DELETE privilege for the mysql system database because it removes the row from the mysql.func system table that registers the function. Because DROP FUNCTION removes the mysql.func row for the dropped function, the server does not ...