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https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
As of MySQL 8.0.17, the display width attribute is deprecated for integer data types; you should expect support for it to be removed in a future version of MySQL. If you specify ZEROFILL for a numeric column, MySQL automatically adds the UNSIGNED ...
https://dev.mysql.com/doc/refman/8.0/en/binary-log.html
From MySQL 8.0.14, binary log files and relay log files can be encrypted, helping to protect these files and the potentially sensitive data contained in them from being misused by outside attackers, and also from unauthorized viewing by users of the ... The binary log contains “events” that describe database changes such as table creation operations or changes to table ...
https://dev.mysql.com/doc/refman/8.0/en/expressions.html
This is analogous to the way that MySQL interprets TIME values as representing elapsed time rather than as a time of day. This section lists the grammar rules that expressions must follow in MySQL and provides additional information about the types ...For additional information about some of the expression terms, see Expression Term ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlslap.html
Run all the load statements, then run all the queries in the query file with five clients (five times each): mysqlslap --concurrency=5 --iterations=5 --query=query.sql --create=create.sql --delimiter=";" mysqlslap supports the following options, ...
https://dev.mysql.com/doc/refman/8.0/en/replication-options-source.html
--show-replica-auth-info Command-Line Format --show-replica-auth-info[={OFF|ON}] Type Boolean Default Value OFF From MySQL 8.0.26, use --show-replica-auth-info, and before MySQL 8.0.26, use --show-slave-auth-info. The options display replication ...
https://dev.mysql.com/doc/refman/8.0/en/charset-connection.html
With the mysql client, to use a character set different from the default, you could explicitly execute a SET NAMES statement every time you connect to the server (see Client Program Connection Character Set Configuration). For example, the following ...These session system variable values are initialized at connect time, but can be changed within the ... A “connection” is what a client ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-functions-general-purpose.html
MySQL Server supports a keyring service that enables internal components and plugins to store sensitive information securely for later retrieval. MySQL Server also includes an SQL interface for keyring key management, implemented as a set of ...The ...
https://dev.mysql.com/doc/refman/8.0/en/replication-upgrade.html
For general information and instructions for upgrading a MySQL Server instance, see Chapter 3, Upgrading MySQL. As explained in Section 19.5.2, “Replication Compatibility Between MySQL Versions”, MySQL supports replication from a source running ... When you upgrade servers that participate in a replication topology, you need to take into account each server's role in the topology and look out for issues specific to ...
https://dev.mysql.com/doc/refman/8.0/en/account-categories.html
As of MySQL 8.0.16, MySQL incorporates the concept of user account categories, based on the SYSTEM_USER privilege. (However, to fully protect system accounts against regular accounts, you must also withhold modification privileges for the mysql ...
https://dev.mysql.com/doc/refman/8.0/en/create-table-select.html
You can create one table from another by adding a SELECT statement at the end of the CREATE TABLE statement: CREATE TABLE new_tbl [AS] SELECT * FROM orig_tbl; MySQL creates new columns for all elements in the SELECT. For example: mysql> CREATE ...