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https://dev.mysql.com/doc/refman/5.7/en/resetting-permissions.html
If you have never assigned a root password for MySQL, the server does not require a password at all for connecting as root. For instructions on assigning a password, see Section 2.9.4, “Securing the Initial MySQL Account”. If you know the root ...
https://dev.mysql.com/doc/refman/5.7/en/time-zone-support.html
This section describes the time zone settings maintained by MySQL, how to load the system tables required for named time support, how to stay current with time zone changes, and how to enable leap-second support. For information about time zone ...
https://dev.mysql.com/doc/refman/5.7/en/binary-installation.html
These include generic binary distributions in the form of compressed tar files (files with a .tar.gz extension) for a number of platforms, and binaries in platform-specific package formats for selected platforms. This section covers the installation ...
https://dev.mysql.com/doc/refman/5.7/en/create-table-generated-columns.html
Values of a generated column are computed from an expression included in the column definition. Generated columns are supported by the NDB storage engine beginning with MySQL NDB Cluster 7.5.3. Generated column definitions have this syntax: col_name ...
https://dev.mysql.com/doc/refman/5.7/en/create-table-ndb-comment-options.html
NDB_COLUMN Options NDB_TABLE Options It is possible to set a number of options specific to NDB Cluster in the table comment or column comments of an NDB table. Table-level options for controlling read from any replica and partition balance can be ...
https://dev.mysql.com/doc/refman/5.7/en/create-trigger.html
CREATE [DEFINER = user] TRIGGER trigger_name trigger_time trigger_event ON tbl_name FOR EACH ROW [trigger_order] trigger_body trigger_time: { BEFORE | AFTER } trigger_event: { INSERT | UPDATE | DELETE } trigger_order: { FOLLOWS | PRECEDES } ...
https://dev.mysql.com/doc/refman/5.7/en/default-privileges.html
The MySQL installation process involves initializing the data directory, including the grant tables in the mysql system database 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/5.7/en/downgrade-binary-package.html
This section describes how to downgrade MySQL binary and package-based installations on Unix/Linux. In-Place Downgrade Logical Downgrade In-Place Downgrade In-place downgrade involves shutting down the new MySQL version, replacing the new MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/explain-for-connection.html
To obtain the execution plan for an explainable statement executing in a named connection, use this statement: EXPLAIN [options] FOR CONNECTION connection_id; EXPLAIN FOR CONNECTION returns the EXPLAIN information that is currently being used to ...
https://dev.mysql.com/doc/refman/5.7/en/explain.html
In practice, the DESCRIBE keyword is more often used to obtain information about table structure, whereas EXPLAIN is used to obtain a query execution plan (that is, an explanation of how MySQL would execute a query). The following discussion uses ...