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https://dev.mysql.com/doc/refman/9.7/en/sys-ps-setup-show-disabled-instruments.html
Displays all currently disabled Performance Schema instruments. This might be a long list. Parameters None. Example mysql> CALL sys.ps_setup_show_disabled_instruments()\G *************************** 1. row *************************** ...
https://dev.mysql.com/doc/refman/9.7/en/sys-ps-setup-show-enabled-instruments.html
Displays all currently enabled Performance Schema instruments. This might be a long list. Parameters None. Example mysql> CALL sys.ps_setup_show_enabled_instruments()\G *************************** 1. row *************************** ...
https://dev.mysql.com/doc/refman/9.7/en/sys-statements-with-errors-or-warnings.html
These views display normalized statements that have produced errors or warnings. By default, rows are sorted by descending error and warning counts. The statements_with_errors_or_warnings and x$statements_with_errors_or_warnings views have these ...
https://dev.mysql.com/doc/refman/9.7/en/thread-pool-information-schema-tables.html
Note The INFORMATION_SCHEMA thread pool tables are deprecated, and subject to removal in a future version of MySQL. Accessing any of these tables produces a warning; you should use the versions available as Performance Schema tables instead.
https://dev.mysql.com/doc/refman/9.7/en/type-conversion.html
When an operator is used with operands of different types, type conversion occurs to make the operands compatible. For example, MySQL automatically converts strings to numbers as necessary, and vice versa. mysql> SELECT 1+'1'; -> 2 mysql> SELECT ...
https://dev.mysql.com/doc/refman/9.7/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/9.7/en/ibd2sdi.html
ibd2sdi is a utility for extracting serialized dictionary information (SDI) from InnoDB tablespace files. ibd2sdi can be run on file-per-table tablespace files (*.ibd files), general tablespace files (*.ibd files), system tablespace files (ibdata* ...
https://dev.mysql.com/doc/refman/9.7/en/added-deprecated-removed.html
Options and Variables Introduced in MySQL 9.7 Options and Variables Deprecated in MySQL 9.7 Options and Variables Removed in MySQL 9.7 This section lists server variables, status variables, and options that were added for the first time, have been ...
https://dev.mysql.com/doc/refman/9.7/en/alter-database.html
alter_option: { [DEFAULT] CHARACTER SET [=] charset_name | [DEFAULT] COLLATE [=] collation_name | [DEFAULT] ENCRYPTION [=] {'Y' | 'N'} | READ ONLY [=] {DEFAULT | 0 | 1} } ALTER DATABASE enables you to change the overall characteristics of a database. If the database name is omitted, the statement applies to the default ...
https://dev.mysql.com/doc/refman/9.7/en/archive-storage-engine.html
The ARCHIVE storage engine produces special-purpose tables that store large amounts of unindexed data in a very small footprint. To enable this storage engine if you build MySQL from source, invoke CMake with the -DWITH_ARCHIVE_STORAGE_ENGINE ...