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https://dev.mysql.com/doc/refman/8.4/en/mysqldump.html
The mysqldump client utility performs logical backups, producing a set of SQL statements that can be executed to reproduce the original database object definitions and table data. It dumps one or more MySQL databases for backup or transfer to ...
https://dev.mysql.com/doc/refman/8.4/en/optimize-numeric.html
For unique IDs or other values that can be represented as either strings or numbers, prefer numeric columns to string columns. Since large numeric values can be stored in fewer bytes than the corresponding strings, it is faster and takes less ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-statement-tables.html
Statement events occur at a high level of the event hierarchy. Within the event hierarchy, wait events nest within stage events, which nest within statement events, which nest within transaction events. These tables store statement events: ...
https://dev.mysql.com/doc/refman/8.4/en/replication-features-differing-tables.html
Source and target tables for replication do not have to be identical. A table on the source can have more or fewer columns than the replica's copy of the table. In addition, corresponding table columns on the source and the replica can use ...
https://dev.mysql.com/doc/refman/8.4/en/signal.html
SIGNAL provides error information to a handler, to an outer portion of the application, or to the client. Also, it provides control over the error's characteristics (error number, SQLSTATE value, message). Without SIGNAL, it is necessary to resort ...
https://dev.mysql.com/doc/refman/8.4/en/silent-column-changes.html
In some cases, MySQL silently changes column specifications from those given in a CREATE TABLE or ALTER TABLE statement. These might be changes to a data type, to attributes associated with a data type, or to an index specification. All changes are ...
https://dev.mysql.com/doc/refman/8.4/en/string-literals.html
A string is a sequence of bytes or characters, enclosed within either single quote (') or double quote (") characters. Examples: 'a string' "another string" Quoted strings placed next to each other are concatenated to a single string. The following ...
https://dev.mysql.com/doc/refman/8.4/en/sys-list-add.html
Adds a value to a comma-separated list of values and returns the result. This function and list_drop() can be useful for manipulating the value of system variables such as sql_mode and optimizer_switch that take a comma-separated list of values.
https://dev.mysql.com/doc/refman/8.4/en/sys-list-drop.html
Removes a value from a comma-separated list of values and returns the result. For more information, see the description of list_add() Parameters in_list TEXT: The list to be modified.
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-information-commands.html
Online help is available in the MySQL Cluster Manager client for MySQL Cluster Manager client commands. In addition, you can obtain information about mysql client commands that are independent of the MySQL server and thus are also available for use ...