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https://dev.mysql.com/doc/refman/8.0/en/using-explain.html
The EXPLAIN statement provides information about how MySQL executes statements: EXPLAIN works with SELECT, DELETE, INSERT, REPLACE, and UPDATE statements. When EXPLAIN is used with an explainable statement, MySQL displays information from the ...
https://dev.mysql.com/doc/refman/8.0/en/using-gdb-on-mysqld.html
On most systems you can also start mysqld from gdb to get more information if mysqld crashes. With some older gdb versions on Linux you must use run --one-thread if you want to be able to debug mysqld threads. In this case, you can only have one ...
https://dev.mysql.com/doc/refman/8.0/en/using-log-files.html
Note that before starting mysqld with the general query log enabled, you should check all your tables with myisamchk. If mysqld dies or hangs, you should start mysqld with the general query log enabled. When mysqld dies again, you can examine the ...
https://dev.mysql.com/doc/refman/8.0/en/windows-pluggable-authentication.html
Note Windows pluggable authentication is an extension included in MySQL Enterprise Edition, a commercial product. MySQL Enterprise Edition for Windows supports an authentication method that performs external authentication on Windows, enabling ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-cjk.html
This set of Frequently Asked Questions derives from the experience of MySQL's Support and Development groups in handling many inquiries about CJK (Chinese-Japanese-Korean) issues. What problems should I be aware of when working with the Big5 ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-hashicorp-plugin.html
Note The keyring_hashicorp plugin is an extension included in MySQL Enterprise Edition, a commercial product. The keyring_hashicorp keyring plugin communicates with HashiCorp Vault for back end storage. No key information is permanently stored in ...
https://dev.mysql.com/doc/refman/8.0/en/source-installation.html
Building MySQL from the source code enables you to customize build parameters, compiler optimizations, and installation location. For a list of systems on which MySQL is known to run, see ...
https://dev.mysql.com/doc/refman/8.0/en/charset-applications.html
For applications that store data using the default MySQL character set and collation (utf8mb4, utf8mb4_0900_ai_ci), no special configuration should be needed. If applications require data storage using a different character set or collation, you ...
https://dev.mysql.com/doc/refman/8.0/en/charset-cp932.html
Why is cp932 needed? In MySQL, the sjis character set corresponds to the Shift_JIS character set defined by IANA, which supports JIS X0201 and JIS X0208 characters. (See http://www.iana.org/assignments/character-sets.) However, the meaning of ...
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-sets.html
This section describes the collations available for Unicode character sets and their differentiating properties. MySQL supports multiple Unicode character sets: utf8mb4: A UTF-8 encoding of the Unicode character set using one to four bytes per ...