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https://dev.mysql.com/doc/refman/8.4/en/binary-varbinary.html
Instead, it causes the binary (_bin) collation for the column character set (or the table default character set if no column character set is specified) to be used, and the column itself stores nonbinary character strings rather than binary byte ...
https://dev.mysql.com/doc/refman/8.4/en/calculating-days.html
CREATE TABLE t1 (year YEAR, month INT UNSIGNED, day INT UNSIGNED); INSERT INTO t1 VALUES(2000,1,1),(2000,1,20),(2000,1,30),(2000,2,2), (2000,2,23),(2000,2,23); The example table contains year-month-day values representing visits by users to the page. The following example shows how you can use the bit group functions to calculate the number of days per month a user has visited a Web ...
https://dev.mysql.com/doc/refman/8.4/en/charset-collation-implementations.html
MySQL implements several types of collations: Simple collations for 8-bit character sets This kind of collation is implemented using an array of 256 weights that defines a one-to-one mapping from character codes to weights. It is a case-insensitive ...
https://dev.mysql.com/doc/refman/8.4/en/charset-collation-names.html
The following table shows the suffixes used to indicate these characteristics. Table 12.1 Collation Suffix Meanings Suffix Meaning _ai Accent-insensitive _as Accent-sensitive _ci Case-insensitive _cs Case-sensitive _ks Kana-sensitive _bin Binary For ... MySQL collation names follow these conventions: A collation name starts with the name of the character set with which it is associated, generally followed by one or more suffixes indicating other collation ...
https://dev.mysql.com/doc/refman/8.4/en/clone-plugin-local.html
Note A local cloning operation does not support cloning of user-created tables or tablespaces that reside outside of the data directory. Attempting to clone such tables or tablespaces causes the following error: ERROR 1086 (HY000): File ...The ...
https://dev.mysql.com/doc/refman/8.4/en/clone-plugin-stop.html
On the recipient MySQL server instance, you can retrieve the processlist identifier (PID) for a cloning operation from the PID column of the clone_status table. If necessary, you can stop a cloning operation with a KILL QUERY processlist_id ...
https://dev.mysql.com/doc/refman/8.4/en/clone-plugin.html
Cloned data is a physical snapshot of data stored in InnoDB that includes schemas, tables, tablespaces, and data dictionary metadata. By default, a remote cloning operation removes existing user-created data (schemas, tables, tablespaces) and binary ... The clone plugin permits cloning data locally or from a remote MySQL server ...
https://dev.mysql.com/doc/refman/8.4/en/connection-compression-control.html
For source/replica replication connections, the configured compression algorithms and compression level are available from multiple sources: The Performance Schema replication_connection_configuration table has COMPRESSION_ALGORITHMS and ...
https://dev.mysql.com/doc/refman/8.4/en/connection-control-plugin.html
CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS implements an INFORMATION_SCHEMA table that exposes more detailed monitoring information for failed connection attempts. For more information about this table, see Section 28.6.2, “The INFORMATION_SCHEMA ...
https://dev.mysql.com/doc/refman/8.4/en/constraints.html
MySQL enables you to work both with transactional tables that permit rollback and with nontransactional tables that do not. We must handle the case when you have inserted or updated a lot of rows in a nontransactional table for which changes cannot ...Because of this, constraint handling is a bit different in MySQL than in other ...