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https://dev.mysql.com/doc/refman/5.7/en/manual-info.html
This is the Reference Manual for the MySQL Database System, version 5.7, through release 5.7.44. Differences between minor versions of MySQL 5.7 are noted in the present text with reference to release numbers (5.7.x). This manual is not intended ...
https://dev.mysql.com/doc/refman/5.7/en/memory-storage-engine.html
The MEMORY storage engine (formerly known as HEAP) creates special-purpose tables with contents that are stored in memory. Because the data is vulnerable to crashes, hardware issues, or power outages, only use these tables as temporary work areas ...
https://dev.mysql.com/doc/refman/5.7/en/memory-use.html
MySQL allocates buffers and caches to improve performance of database operations. The default configuration is designed to permit a MySQL server to start on a virtual machine that has approximately 512MB of RAM. You can improve MySQL performance by ...
https://dev.mysql.com/doc/refman/5.7/en/midpoint-insertion.html
By default, the key cache management system uses a simple LRU strategy for choosing key cache blocks to be evicted, but it also supports a more sophisticated method called the midpoint insertion strategy. When using the midpoint insertion strategy, ...
https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-optimization-tips.html
This section lists a number of miscellaneous tips for improving query processing speed: If your application makes several database requests to perform related updates, combining the statements into a stored routine can help performance. Similarly, ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-api-definition.html
The [mysqld] and [api] sections in the config.ini file define the behavior of the MySQL servers (SQL nodes) and other applications (API nodes) used to access cluster data. If no computer or host name is provided, any host can use this SQL or API ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-replication-issues.html
This section discusses known problems or issues when using replication with NDB Cluster. A loss of connection can occur either between the source cluster SQL node and the replica cluster SQL node, or between the source SQL node and the data nodes ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-nutshell.html
This section summarizes what has been added to, deprecated in, and removed from MySQL 5.7. A companion section lists MySQL server options and variables that have been added, deprecated, or removed in MySQL 5.7; see Section 1.4, “Server and Status ...
https://dev.mysql.com/doc/refman/5.7/en/mysqldumpslow.html
The MySQL slow query log contains information about queries that take a long time to execute (see Section 5.4.5, “The Slow Query Log”). mysqldumpslow parses MySQL slow query log files and summarizes their contents. Normally, mysqldumpslow ...
https://dev.mysql.com/doc/refman/5.7/en/nested-join-optimization.html
The following discussion refers to the join syntax described in Section 13.2.9.2, “JOIN Clause”. The syntax of table_factor is extended in comparison with the SQL Standard. The latter accepts only table_reference, not a list of them inside a ...