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https://dev.mysql.com/doc/refman/8.4/en/programs-overview.html
Later sections provide a more detailed description of each one, with the exception of NDB Cluster programs. Each program's description indicates its invocation syntax and the options that it supports. Section 25.5, “NDB Cluster Programs”, ...
https://dev.mysql.com/doc/refman/8.4/en/recovery-from-backups.html
Now, suppose that we have a catastrophic unexpected exit on Wednesday at 8 a.m. To recover, first we restore the last full backup we have (the one from Sunday 1 p.m.). The full backup file is just a set of SQL statements, so restoring it is very ...
https://dev.mysql.com/doc/refman/8.4/en/regexp.html
This section discusses the functions and operators available for regular expression matching and illustrates, with examples, some of the special characters and constructs that can be used for regular expression operations. MySQL implements regular ...
https://dev.mysql.com/doc/refman/8.4/en/replication-features-create-if-not-exists.html
IF NOT EXISTS statements are replicated: Every CREATE DATABASE IF NOT EXISTS statement is replicated, whether or not the database already exists on the source. Similarly, every CREATE TABLE IF NOT EXISTS statement without a SELECT is replicated, ...
https://dev.mysql.com/doc/refman/8.4/en/replication-features-functions.html
Certain functions do not replicate well under some conditions: The USER(), CURRENT_USER() (or CURRENT_USER), UUID(), VERSION(), and LOAD_FILE() functions are replicated without change and thus do not work reliably on the replica unless row-based ...
https://dev.mysql.com/doc/refman/8.4/en/replication-features-shutdowns.html
It is safe to shut down a replication source server and restart it later. When a replica loses its connection to the source, the replica tries to reconnect immediately and retries periodically if that fails. This may be changed with the CHANGE ...
https://dev.mysql.com/doc/refman/8.4/en/replication-howto-additionalslaves.html
You can add another replica to an existing replication configuration without stopping the source server. To do this, you can set up the new replica by copying the data directory of an existing replica, and giving the new replica a different server ...
https://dev.mysql.com/doc/refman/8.4/en/replication-solutions-backups-rawdata.html
To guarantee the integrity of the files that are copied, backing up the raw data files on your MySQL replica should take place while your replica server is shut down. If the MySQL server is still running, background tasks may still be updating the ...
https://dev.mysql.com/doc/refman/8.4/en/replication-solutions-backups-read-only.html
Note The instructions in this section place the server to be backed up in a state that is safe for backup methods that get the data from the server, such as mysqldump (see Section 6.5.4, “mysqldump — A Database Backup Program”). You should not ...
https://dev.mysql.com/doc/refman/8.4/en/replication-solutions-partitioning.html
There may be situations where you have a single source server and want to replicate different databases to different replicas. For example, you may want to distribute different sales data to different departments to help spread the load during data ...