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https://dev.mysql.com/doc/relnotes/connector-j/en/news-8-0-17.html
It is suitable for use with MySQL Server versions 8.0, 5.7, and 5.6. (WL #13210) Added support for host names that are longer than 60 characters (up to 255 characters), as they are now supported by MySQL Server 8.0.17. (WL #13125) Added support for ... Version 8.0.17 is the latest General Availability release of the 8.0 series of MySQL ...
https://dev.mysql.com/doc/relnotes/connector-j/en/news-8-0-30.html
It is suitable for use with MySQL Server versions 8.0 and 5.7. (Bug #34259416) Bugs Fixed Historically, MySQL Server has used utf8 as an alias for utf8mb3. Since release 8.0.29, utf8mb3 has become a recognized (though deprecated) character set on ...
https://dev.mysql.com/doc/refman/9.7/en/charset-syntax.html
There are default settings for character sets and collations at four levels: server, database, table, and column. Character set issues affect not only data storage, but also communication between client programs and the MySQL server. If you want ...
https://dev.mysql.com/doc/refman/9.7/en/entering-queries.html
Make sure that you are connected to the server, as discussed in the previous section. Here is a simple query that asks the server to tell you its version number and the current date. We'll get to others later.) When you issue a query, mysql sends ...Doing so does not in itself select any database to work with, but that is ...
https://dev.mysql.com/doc/refman/9.7/en/error-log-rotation.html
If you flush the error log using a FLUSH ERROR LOGS or FLUSH LOGS statement, or a mysqladmin flush-logs command, the server closes and reopens any error log file to which it is writing. If the location of the error log file is not writable by the ...To rename an error log file, do so manually before ...
https://dev.mysql.com/doc/refman/9.7/en/group-replication-deploying-in-single-primary-mode.html
Each of the MySQL server instances in a group can run on an independent physical host machine, which is the recommended way to deploy Group Replication. This section explains how to create a replication group with three MySQL Server instances, each ...
https://dev.mysql.com/doc/refman/9.7/en/group-replication-distributed-recovery.html
When this process is complete, the joining member has caught up with the remaining servers in the group, and it begins to participate normally in the group. As state transfer from the binary log is based on classic asynchronous replication, it might ... Whenever a member joins or rejoins a replication group, it must catch up with the transactions that were applied by the group members before it joined, or while it was ...
https://dev.mysql.com/doc/refman/9.7/en/innodb-backup.html
Hot and cold backups are physical backups that copy actual data files, which can be used directly by the mysqld server for faster restore. Cold Backups If you can shut down the MySQL server, you can make a physical backup that consists of all files ... The key to safe database management is making regular ...
https://dev.mysql.com/doc/refman/9.7/en/myisam-crash-recovery.html
If the server is run with external locking enabled, you can use myisamchk to check tables at any time. In this case, if the server tries to update a table that myisamchk is using, the server waits for myisamchk to finish before it continues. If you ... This section describes how to check for and deal with data corruption in MySQL ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-releases.html
MySQL Portfolio MySQL Server and MySQL NDB Cluster have both Innovation and LTS releases. MySQL Connectors, MySQL Shell, MySQL Router, MySQL Operator for Kubernetes, have one release using the latest version number but remain compatible with all ...