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https://dev.mysql.com/doc/refman/8.4/en/window-function-restrictions.html
The parser recognizes these window constructs which nevertheless are not supported: The GROUPS frame units specifier is parsed, but produces an error. The SQL standard imposes a constraint on window functions that they cannot be used in UPDATE or ...
https://dev.mysql.com/doc/refman/8.4/en/window-functions-frames.html
The definition of a window used with a window function can include a frame clause. A frame is a subset of the current partition and the frame clause specifies how to define the subset. Frames are determined with respect to the current row, which ...
https://dev.mysql.com/doc/refman/8.4/en/windows-installation.html
This installs the MySQL server, an associated MySQL Configurator application, and it adds related MySQL items to the Microsoft Windows Start menu under the MySQL group. MySQL is available for Microsoft Windows 64-bit operating systems only. There ...
https://dev.mysql.com/doc/refman/8.4/en/working-with-null.html
Two NULL values are regarded as equal in a GROUP BY. The NULL value can be surprising until you get used to it. Conceptually, NULL means “a missing unknown value” and it is treated somewhat differently from other values. In MySQL, 0 or NULL ...
https://dev.mysql.com/doc/refman/8.4/en/x-plugin-status-variables.html
Mysqlx_aborted_clients The number of clients that were disconnected because of an input or output error. Mysqlx_address The network address or addresses for which X Plugin accepts TCP/IP connections. If multiple addresses were specified using the ...
https://dev.mysql.com/doc/refman/8.4/en/xa-states.html
Disabling detached XA transactions is not recommended for a MySQL server instance used in group replication; see Server Instance Configuration, for more information. An XA transaction progresses through the following states: Use XA START to start ...
https://dev.mysql.com/doc/relnotes/mysql/8.4/en/preface.html
This document contains release notes for the changes in MySQL 8.4. License Restrictions This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/backup-commands-other.html
This group of operations consists of any mysqlbackup commands not covered in other sections of this chapter. mysqlbackup --error-code=CODE print-message print-message Prints the associated exit message for a mysqlbackup exit code to the stdout ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/backup-commands.html
The major groups of commands are: Backup operations: backup, backup-and-apply-log, backup-to-image Update operations: apply-log, apply-incremental-backup Restore operations: copy-back, copy-back-and-apply-log Validation operation: validate ...Only ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/backup-special-options.html
It creates a file called ibbackup_suspended in the backup log group home directory and waits until you delete that file before proceeding. These options are for backing up database servers that play specific roles in replication, or contain certain ...