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https://dev.mysql.com/doc/refman/8.4/en/key-cache-restructuring.html
Instead, the server directly accesses the table indexes using native file system caching. A key cache can be restructured at any time by updating its parameter values. For example: mysql> SET GLOBAL cold_cache.key_buffer_size=4*1024*1024; If you ...
https://dev.mysql.com/doc/refman/8.4/en/keyring-aws-plugin.html
This is simpler and has no side effects, but is not suitable for installations that require minimal server downtime with as few restarts as possible. Note The keyring_aws plugin is an extension included in MySQL Enterprise Edition, a commercial ...
https://dev.mysql.com/doc/refman/8.4/en/language-structure.html
This chapter discusses the rules for writing the following elements of SQL statements when using MySQL: Literal values such as strings and numbers Identifiers such as database, table, and column names Keywords and reserved words User-defined and ...
https://dev.mysql.com/doc/refman/8.4/en/linux-installation-native.html
To start the MySQL server use systemctl: $> systemctl start mysqld The database tables are automatically created for you, if they do not already exist. Many Linux distributions include a version of the MySQL server, client tools, and development ...
https://dev.mysql.com/doc/refman/8.4/en/linux-installation.html
Documentation Oracle Unbreakable Linux Network Use ULN channels Documentation As an alternative, you can use the package manager on your system to automatically download and install MySQL with packages from the native software repositories of your ... Linux supports a number of different solutions for installing ...
https://dev.mysql.com/doc/refman/8.4/en/local-variable-scope.html
A local variable should not have the same name as a table column. Consequently, when the procedure sp1()is called, the newname variable returns the value 'bob' regardless of the value of the table1.xname column. The scope of a local variable is the ...
https://dev.mysql.com/doc/refman/8.4/en/lock-order-tool.html
(The alternative is to modify lock_order_dependencies.txt itself, which is not encouraged.) If this variable is not set, no secondary file is used. The MySQL server is a multithreaded application that uses numerous internal locking and lock-related ...
https://dev.mysql.com/doc/refman/8.4/en/logical-operators.html
Table 14.5 Logical Operators Name Description AND, && Logical AND NOT, ! Negates value OR, || Logical OR XOR Logical XOR In SQL, all logical operators evaluate to TRUE, FALSE, or NULL (UNKNOWN). In MySQL, these are implemented as 1 (TRUE), 0 ...
https://dev.mysql.com/doc/refman/8.4/en/midpoint-insertion.html
When an index block is read from a table into the key cache, it is placed at the end of the warm sublist. 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 ...
https://dev.mysql.com/doc/refman/8.4/en/monitoring-performance-schema.html
You can query the tables in the performance_schema database to see real-time information about the performance characteristics of your server and the applications it is running.