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https://dev.mysql.com/doc/refman/9.7/en/symbolic-links-to-tables.html
Note Symbolic link support as described here, along with the --symbolic-links option that controls it, and is deprecated; expect these to be removed in a future version of MySQL. For files used by tables for other storage engines, you may get ...
https://dev.mysql.com/doc/refman/9.7/en/sys-ps-setup-reset-to-default.html
Parameters in_verbose BOOLEAN: Whether to display information about each setup stage during procedure execution. row *************************** status: Resetting: setup_actors DELETE FROM performance_schema.setup_actors WHERE NOT (HOST = '%' AND ...
https://dev.mysql.com/doc/refman/9.7/en/sys-schema-prerequisites.html
Before using the sys schema, the prerequisites described in this section must be satisfied. Because the sys schema provides an alternative means of accessing the Performance Schema, the Performance Schema must be enabled for the sys schema to work.
https://dev.mysql.com/doc/refman/9.7/en/testing-server.html
After the data directory is initialized and you have started the server, perform some simple tests to make sure that it works satisfactorily. This section assumes that your current location is the MySQL installation directory and that it has a bin ...
https://dev.mysql.com/doc/refman/9.7/en/thread-pool-tuning.html
This section provides guidelines on determining the best configuration for thread pool performance, as measured using a metric such as transactions per second. Of chief importance is the number of thread groups in the thread pool, which can be set ...
https://dev.mysql.com/doc/refman/9.7/en/timestamp-lookups.html
Temporal values are stored in TIMESTAMP columns as UTC values, and values inserted into and retrieved from TIMESTAMP columns are converted between the session time zone and UTC. (This is the same type of conversion performed by the CONVERT_TZ() ...
https://dev.mysql.com/doc/refman/9.7/en/truncate-table.html
Logically, TRUNCATE TABLE is similar to a DELETE statement that deletes all rows, or a sequence of DROP TABLE and CREATE TABLE statements. To achieve high performance, TRUNCATE TABLE bypasses the DML method of deleting data. Thus, it does not cause ...
https://dev.mysql.com/doc/refman/9.7/en/tuning-trace-purging.html
Thus, if a statement contains substatements (such as invoking stored procedures, stored functions, or triggers), the topmost statement and substatements each generate one trace, but at the end of execution, the trace for only the last substatement ...
https://dev.mysql.com/doc/refman/9.7/en/tutorial.html
This chapter provides a tutorial introduction to MySQL by showing how to use the mysql client program to create and use a simple database. mysql (sometimes referred to as the “terminal monitor” or just “monitor”) is an interactive program ...
https://dev.mysql.com/doc/refman/9.7/en/update.html
UPDATE is a DML statement that modifies rows in a table. An UPDATE statement can start with a WITH clause to define common table expressions accessible within the UPDATE. Single-table syntax: UPDATE [LOW_PRIORITY] [IGNORE] table_reference SET ...