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https://dev.mysql.com/doc/refman/9.7/en/sys-ps-setup-show-enabled.html
Displays all currently enabled Performance Schema configuration. Parameters in_show_instruments BOOLEAN: Whether to display enabled instruments. This might be a long list. in_show_threads BOOLEAN: Whether to display enabled threads. Example mysql> ...
https://dev.mysql.com/doc/refman/9.7/en/sys-ps-trace-statement-digest.html
in_start_fresh BOOLEAN: Whether to truncate the Performance Schema events_statements_history_long and events_stages_history_long tables before starting. Traces all Performance Schema instrumentation for a specific statement digest. If you find a ...
https://dev.mysql.com/doc/refman/9.7/en/validate-password-options-variables.html
validate_password.check_user_name Command-Line Format --validate-password.check-user-name[={OFF|ON}] System Variable validate_password.check_user_name Scope Global Dynamic Yes SET_VAR Hint Applies No Type Boolean Default Value ON Whether ... This ...
https://dev.mysql.com/doc/refman/9.7/en/charset-restrictions.html
However, you can perform IN BOOLEAN MODE searches on the column without an index. Identifiers are stored in mysql database tables (user, db, and so forth) using utf8mb3, but identifiers can contain only characters in the Basic Multilingual Plane ...
https://dev.mysql.com/doc/refman/9.7/en/connecting-using-uri-or-key-value-pairs.html
The connection-attributes parameter value must be empty (the same as specifying true), a Boolean value (true or false to enable or disable the default attribute set), or a list or zero or more key=value specifiers separated by commas (to be sent in ... This section describes use of URI-like connection strings or key-value pairs to specify how to establish connections to the MySQL server, for clients such as MySQL ...
https://dev.mysql.com/doc/refman/9.7/en/create-table-check-constraints.html
expr specifies the constraint condition as a boolean expression that must evaluate to TRUE or UNKNOWN (for NULL values) for each row of the table. CREATE TABLE permits the core features of table and column CHECK constraints, for all storage engines. CREATE TABLE permits the following CHECK constraint syntax, for both table constraints and column constraints: [CONSTRAINT [symbol]] CHECK (expr) [[NOT] ENFORCED] The optional symbol specifies a name for the ...
https://dev.mysql.com/doc/refman/9.7/en/docker-mysql-more-topics.html
Environment variables which can be used to configure a MySQL instance are listed here: The boolean variables including MYSQL_RANDOM_ROOT_PASSWORD, MYSQL_ONETIME_PASSWORD, MYSQL_ALLOW_EMPTY_PASSWORD, and MYSQL_LOG_CONSOLE are made true by setting ...
https://dev.mysql.com/doc/refman/9.7/en/full-text-adding-collation.html
Warning User-defined collations are deprecated; you should expect support for them to be removed in a future version of MySQL. The server issues a warning for any use of COLLATE user_defined_collation in an SQL statement; a warning is also issued ...
https://dev.mysql.com/doc/refman/9.7/en/fulltext-search-ngram.html
For boolean mode search, the search term is converted to an ngram phrase search. The built-in MySQL full-text parser uses the white space between words as a delimiter to determine where words begin and end, which is a limitation when working with ...
https://dev.mysql.com/doc/refman/9.7/en/glossary.html
full-text search The MySQL feature for finding words, phrases, Boolean combinations of words, and so on within table data, in a faster, more convenient, and more flexible way than using the SQL LIKE operator or writing your own application-level ...