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https://dev.mysql.com/doc/refman/5.7/en/user-resources.html
One means of restricting client use of MySQL server resources is to set the global max_user_connections system variable to a nonzero value. This limits the number of simultaneous connections that can be made by any given account, but places no ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-statement-digests.html
Normalization permits statements that are similar to be grouped and summarized to expose information about the types of statements the server is executing and how often they occur. If the table becomes full, the Performance Schema groups statements ... The MySQL server is capable of maintaining statement digest ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-tips.html
Alternatively, create a shortcut that only sets the console font, and set the character set in the [mysql] group of your my.ini file: [mysql] default-character-set=utf8 Displaying Query Results Vertically Some query results are much more readable ...
https://dev.mysql.com/doc/refman/5.7/en/data-size.html
Design your tables to minimize their space on the disk. This can result in huge improvements by reducing the amount of data written to and read from disk. Smaller tables normally require less main memory while their contents are being actively ...
https://dev.mysql.com/doc/refman/5.7/en/enterprise-encryption-functions.html
MySQL Enterprise Encryption functions have these general characteristics: For arguments of the wrong type or an incorrect number of arguments, each function returns an error. If the arguments are not suitable to permit a function to perform the ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-consistent-read.html
A consistent read means that InnoDB uses multi-versioning to present to a query a snapshot of the database at a point in time. The query sees the changes made by transactions that committed before that point in time, and no changes made by later or ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-memcached-setup.html
This section describes how to set up the daemon_memcached plugin on a MySQL server. Because the memcached daemon is tightly integrated with the MySQL server to avoid network traffic and minimize latency, you perform this process on each MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-undo-tablespaces.html
Undo tablespaces contain undo logs, which are collections of records containing information about how to undo the latest change by a transaction to a clustered index record. Undo logs are stored in the system tablespace by default but can be stored ...
https://dev.mysql.com/doc/refman/5.7/en/optimize-table.html
OPTIMIZE TABLE reorganizes the physical storage of table data and associated index data, to reduce storage space and improve I/O efficiency when accessing the table. The exact changes made to each table depend on the storage engine used by that ...
https://dev.mysql.com/doc/refman/5.7/en/replication-solutions-backups-read-only.html
Note The instructions in this section place the server to be backed up in a state that is safe for backup methods that get the data from the server, such as mysqldump (see Section 4.5.4, “mysqldump — A Database Backup Program”). You should not ...