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https://dev.mysql.com/doc/refman/8.4/en/sys-execute-prepared-stmt.html
Given an SQL statement as a string, executes it as a prepared statement. The prepared statement is deallocated after execution, so it is not subject to reuse. Thus, this procedure is useful primarily for executing dynamic statements on a one-time ...
https://dev.mysql.com/doc/refman/8.4/en/sys-format-path.html
Given a path name, returns the modified path name after replacing subpaths that match the values of the following system variables, in order: datadir tmpdir replica_load_tmpdir innodb_data_home_dir innodb_log_group_home_dir innodb_undo_directory ...
https://dev.mysql.com/doc/refman/8.4/en/sys-format-statement.html
Given a string (normally representing an SQL statement), reduces it to the length given by the statement_truncate_len configuration option, and returns the result. Otherwise, the middle part of the string is replaced by an ellipsis (...). This ...
https://dev.mysql.com/doc/refman/8.4/en/sys-ps-statement-avg-latency-histogram.html
Displays a textual histogram graph of the average latency values across all normalized statements tracked within the Performance Schema events_statements_summary_by_digest table. This procedure can be used to display a very high-level picture of ...
https://dev.mysql.com/doc/refman/8.4/en/sys-ps-thread-stack.html
Returns a JSON formatted stack of all statements, stages, and events within the Performance Schema for a given thread ID. The value should match the THREAD_ID column from some Performance Schema threads table row. row *************************** ...
https://dev.mysql.com/doc/refman/8.4/en/sys-quote-identifier.html
Given a string argument, this function produces a quoted identifier suitable for inclusion in SQL statements. This is useful when a value to be used as an identifier is a reserved word or contains backtick (`) characters. Example mysql> SELECT ...
https://dev.mysql.com/doc/refman/8.4/en/sys-statement-performance-analyzer.html
Creates a report of the statements running on the server. The views are calculated based on the overall and/or delta activity. This procedure disables binary logging during its execution by manipulating the session value of the sql_log_bin system ...
https://dev.mysql.com/doc/refman/8.4/en/using-date.html
You should use this format in UPDATE expressions and in the WHERE clause of SELECT statements. For example: SELECT * FROM t1 WHERE date >= '2003-05-05'; As a convenience, MySQL automatically converts a date to a number if the date is used in numeric ...
https://dev.mysql.com/doc/refman/8.4/en/version-tokens-reference.html
The following discussion serves as a reference to these Version Tokens elements: Version Tokens Functions Version Tokens System Variables Version Tokens Functions The Version Tokens plugin library includes several functions. One set of functions ...
https://dev.mysql.com/doc/refman/8.4/en/year.html
The YEAR type is a 1-byte type used to represent year values. It can be declared as YEAR with an implicit display width of 4 characters, or equivalently as YEAR(4) with an explicit display width. Note he YEAR(4) data type using an explicit display ...