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https://dev.mysql.com/sys-ps-is-instrument-default-enabled.html
Returns YES or NO to indicate whether a given Performance Schema instrument is enabled by default. mysql> SELECT sys.ps_is_instrument_default_enabled('memory/innodb/row_log_buf'); ...
https://dev.mysql.com/sys-ps-is-instrument-default-timed.html
Returns YES or NO to indicate whether a given Performance Schema instrument is timed by default. mysql> SELECT sys.ps_is_instrument_default_timed('memory/innodb/row_log_buf'); +-----------------------------------------------------------------+ | ...
https://dev.mysql.com/sys-ps-is-thread-instrumented.html
Returns YES or NO to indicate whether Performance Schema instrumentation for a given connection ID is enabled, UNKNOWN if the ID is unknown, or NULL if the ID is NULL. This is a value of the type given in the PROCESSLIST_ID column of the ...
https://dev.mysql.com/control-flow-functions.html
SET and ENUM are treated similar to VARCHAR; the result is VARCHAR. The second syntax returns the result for the first condition that is true. If no comparison or condition is true, the result after ELSE is returned, or NULL if there is no ELSE part. Note The syntax of the CASE expr described here differs slightly from that of the SQL CASE statement described in Section 13.6.5.1, “CASE Syntax”, for use inside stored ...
https://dev.mysql.com/mysql-nutshell.html
This section summarizes what has been added to, deprecated in, and removed from MySQL 8.0. A companion section lists MySQL server options and variables that have been added, deprecated, or removed in MySQL 8.0. See Section 1.5, “Server and Status ...
https://dev.mysql.com/mysql-options4.html
int mysql_options4(MYSQL *mysql, enum mysql_option option, const void *arg1, const void *arg2) mysql_options4() is similar to mysql_options() but has an extra fourth argument so that two values can be passed for the option specified in the second ...The following list describes the permitted options, their effect, and how arg1 and arg2 are ...
https://dev.mysql.com/mysql-session-track-get-next.html
int mysql_session_track_get_next(MYSQL *mysql, enum enum_session_state_type type, const char **data, size_t *length) This function fetches additional session state-change information received from the server, following that retrieved by ...
https://dev.mysql.com/mysql-set-server-option.html
int mysql_set_server_option(MYSQL *mysql, enum enum_mysql_set_option option) Enables or disables an option for the connection. Option Description MYSQL_OPTION_MULTI_STATEMENTS_ON Enable multiple-statement support MYSQL_OPTION_MULTI_STATEMENTS_OFF ...
https://dev.mysql.com/performance-schema-quick-start.html
row *************************** Table: setup_consumers Create Table: CREATE TABLE `setup_consumers` ( `NAME` varchar(64) NOT NULL, `ENABLED` enum('YES','NO') NOT NULL, PRIMARY KEY (`NAME`) ) ENGINE=PERFORMANCE_SCHEMA DEFAULT CHARSET=utf8mb4 ... This ...
https://dev.mysql.com/sys-statement-performance-analyzer.html
in_action ENUM('snapshot', 'overall', 'delta', 'create_tmp', 'create_table', 'save', 'cleanup'): The action to take. Creates a report of the statements running on the server. The views are calculated based on the overall and/or delta activity. This ...
Document created the 26/06/2006, last modified the 26/10/2018
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