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https://dev.mysql.com/doc/refman/5.7/en/show-profiles.html
SHOW PROFILES The SHOW PROFILES statement, together with SHOW PROFILE, displays profiling information that indicates resource usage for statements executed during the course of the current session. Note The SHOW PROFILE and SHOW PROFILES statements ...
https://dev.mysql.com/doc/refman/5.7/en/close.html
If not closed explicitly, a cursor is closed at the end of the BEGIN ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-data-encryption.html
Failing to do so results in errors when starting the server and during InnoDB recovery. Each time the master encryption key is rotated, all tablespace keys in the MySQL instance are re-encrypted and saved back to their respective tablespace headers.
https://dev.mysql.com/doc/refman/5.7/en/explain.html
In practice, the DESCRIBE keyword is more often used to obtain information about table structure, whereas EXPLAIN is used to obtain a query execution plan (that is, an explanation of how MySQL would execute a query). Obtaining Execution Plan ...The ...
https://dev.mysql.com/doc/refman/5.7/en/myisamchk-repair-options.html
--data-file-length=len, -D len Command-Line Format --data-file-length=len Type Numeric The maximum length of the data file (when re-creating data file when it is “full”). --recover, -r Command-Line Format --recover Do a repair that can fix ...
https://dev.mysql.com/doc/refman/5.7/en/compiler-characteristics.html
In some cases, the compiler used to build MySQL affects the features available for use. The notes in this section apply for binary distributions provided by Oracle Corporation or that you compile yourself from source. icc (Intel C++ Compiler) ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-firewall-table-reference.html
Table 24.10 INFORMATION_SCHEMA Firewall Tables Table Name Description MYSQL_FIREWALL_USERS Firewall in-memory data for account profiles MYSQL_FIREWALL_WHITELIST Firewall in-memory data for account profile allowlists .
https://dev.mysql.com/doc/refman/5.7/en/innodb-architecture.html
The following diagram shows in-memory and on-disk structures that comprise the InnoDB storage engine architecture. For information about each structure, see Section 14.5, “InnoDB In-Memory Structures”, and Section 14.6, “InnoDB On-Disk ...
https://dev.mysql.com/doc/refman/5.7/en/ipv6-remote-connections.html
The following procedure shows how to configure MySQL to permit IPv6 connections by remote clients. It is similar to the preceding procedure for local clients, but the server and client hosts are distinct and each has its own nonlocal IPv6 address.
https://dev.mysql.com/doc/refman/5.7/en/literals.html
This section describes how to write literal values in MySQL. These include strings, numbers, hexadecimal and bit values, boolean values, and NULL. The section also covers various nuances that you may encounter when dealing with these basic types in ...