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https://dev.mysql.com/doc/refman/5.7/en/examples.html
Here are examples of how to solve some common problems with MySQL. Some of the examples use the table shop to hold the price of each article (item number) for certain traders (dealers). Supposing that each trader has a single fixed price per ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-compression-tuning.html
Whether the workload is more like a data warehouse (primarily queries) or an OLTP system (mix of queries and DML). For more elaborate tests involving workloads with multiple compressed tables, run queries against the Information Schema ... Most ...
https://dev.mysql.com/doc/refman/5.7/en/keyring-okv-plugin.html
Download the CA and save it in the ssl directory as a file named CA.pem. Copy the signed certificate to the clipboard, then save the clipboard contents as a file named cert.pem in the ssl directory. For example, use a command like this, and enter ...
https://dev.mysql.com/doc/refman/5.7/en/data-size.html
MySQL has many specialized types that save disk space and memory. For InnoDB tables, the primary key columns are duplicated in each secondary index entry, so a short primary key saves considerable space if you have many secondary indexes. Keep ...
https://dev.mysql.com/doc/refman/5.7/en/replication-gtids-lifecycle.html
For example, you might need to do this after carrying out test queries to verify a replication setup on new GTID-enabled servers, or when you want to join a new server to a replication group but it contains some unwanted local transactions that are ... The life cycle of a GTID consists of the following steps: A transaction is executed and committed on the replication source ...
https://dev.mysql.com/doc/refman/5.7/en/resetting-permissions.html
The file contains the password, so do not save it where it can be read by other users. If you have never assigned a root password for MySQL, the server does not require a password at all for connecting as root. For instructions on assigning a ...
https://dev.mysql.com/doc/refman/5.7/en/sys-schema-object-index.html
The following tables list sys schema objects and provide a short description of each one.
https://dev.mysql.com/doc/refman/5.7/en/server-status-variables.html
If this value is high, it is a good indication that your tables are properly indexed for your queries. This value is high if you are doing a lot of queries that require sorting of the result. You probably have a lot of queries that require MySQL to ... The MySQL server maintains many status variables that provide information about its ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-index-stat.html
--database=name, -d name Command-Line Format --database=name Type String Default Value [none] Minimum Value Maximum Value The name of the database that contains the table being queried. --query=# Command-Line Format --query=# Type Numeric Default ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-information-schema-internal-data.html
The data needed to fill the three tables is fetched atomically and consistently and is saved in this global internal buffer, forming a point-in-time “snapshot”. Because the buffer is not refreshed with every query of any of these tables, if you ... The data exposed by the transaction and locking tables (INNODB_TRX, INNODB_LOCKS, and INNODB_LOCK_WAITS) represents a glimpse into fast-changing ...