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https://dev.mysql.com/doc/refman/8.0/en/sys-extract-schema-from-file-name.html
Example mysql> SELECT sys.extract_schema_from_file_name('/usr/local/mysql/data/world/City.ibd'); +---------------------------------------------------------------------------+ | ... Given a file path name, returns the path component that represents ...
https://dev.mysql.com/doc/refman/8.0/en/sys-extract-table-from-file-name.html
Example mysql> SELECT sys.extract_table_from_file_name('/usr/local/mysql/data/world/City.ibd'); +--------------------------------------------------------------------------+ | sys.extract_table_from_file_name('/usr/local/mysql/data/world/City.ibd') | ... Given a file path name, returns the path component that represents the table ...
https://dev.mysql.com/doc/refman/8.0/en/sys-format-bytes.html
Note As of MySQL 8.0.16, format_bytes() is deprecated and subject to removal in a future MySQL version. Example mysql> SELECT sys.format_bytes(512), sys.format_bytes(18446644073709551615); ...Applications that use it should be migrated to use the ...
https://dev.mysql.com/doc/refman/8.0/en/sys-format-path.html
Example mysql> SELECT sys.format_path('/usr/local/mysql/data/world/City.ibd'); +---------------------------------------------------------+ | sys.format_path('/usr/local/mysql/data/world/City.ibd') | ... Given a path name, returns the modified path ...
https://dev.mysql.com/doc/refman/8.0/en/sys-ps-thread-id.html
Note As of MySQL 8.0.16, ps_thread_id() is deprecated and subject to removal in a future MySQL version. Example mysql> SELECT sys.ps_thread_id(260); +-----------------------+ | sys.ps_thread_id(260) | +-----------------------+ | 285 | ...
https://dev.mysql.com/doc/refman/8.0/en/sys-quote-identifier.html
Example mysql> SELECT sys.quote_identifier('plain'); +-------------------------------+ | sys.quote_identifier('plain') | +-------------------------------+ | `plain` | +-------------------------------+ mysql> SELECT sys.quote_identifier('trick`ier'); ... Given a string argument, this function produces a quoted identifier suitable for inclusion in SQL ...
https://dev.mysql.com/doc/refman/8.0/en/truncate-table.html
In MySQL 5.7 and earlier, on a system with a large buffer pool and innodb_adaptive_hash_index enabled, a TRUNCATE TABLE operation could cause a temporary drop in system performance due to an LRU scan that occurred when removing the table's adaptive ...Logically, TRUNCATE TABLE is similar to a DELETE statement that deletes all rows, or a sequence of DROP TABLE and CREATE TABLE ...
https://dev.mysql.com/doc/refman/8.0/en/two-digit-years.html
For DATETIME, DATE, and TIMESTAMP types, MySQL interprets dates specified with ambiguous year values using these rules: Year values in the range 00-69 become 2000-2069. Such values must be interpreted into 4-digit form because MySQL stores years ...
https://dev.mysql.com/doc/refman/8.0/en/uninstall-component.html
A component provides services that are available to the server and other components; see Section 7.5, “MySQL Components”. It requires the DELETE privilege for the mysql.component system table because it removes the row from that table that ...
https://dev.mysql.com/doc/refman/8.0/en/uninstall-plugin.html
It requires the DELETE privilege for the mysql.plugin system table because it removes the row from that table that registers the plugin. plugin_name must be the name of some plugin that is listed in the mysql.plugin table. The server executes the ...