инструмент командной строки MariaDB (the MariaDB command-line tool)
MYSQL SERVER-SIDE HELP
mysql> help search_string
If you provide an argument to the help command, mysql uses it as
a search string to access server-side help. The proper operation
of this command requires that the help tables in the mysql
database be initialized with help topic information.
If there is no match for the search string, the search fails:
mysql> help me
Nothing found
Please try to run ´help contents´ for a list of all accessible topics
Use help contents to see a list of the help categories:
mysql> help contents
You asked for help about help category: "Contents"
For more information, type ´help <item>´, where <item> is one of the
following categories:
Account Management
Administration
Data Definition
Data Manipulation
Data Types
Functions
Functions and Modifiers for Use with GROUP BY
Geographic Features
Language Structure
Plugins
Storage Engines
Stored Routines
Table Maintenance
Transactions
Triggers
If the search string matches multiple items, mysql shows a list
of matching topics:
mysql> help logs
Many help items for your request exist.
To make a more specific request, please type ´help <item>´,
where <item> is one of the following topics:
SHOW
SHOW BINARY LOGS
SHOW ENGINE
SHOW LOGS
Use a topic as the search string to see the help entry for that
topic:
mysql> help show binary logs
Name: ´SHOW BINARY LOGS´
Description:
Syntax:
SHOW BINARY LOGS
SHOW MASTER LOGS
Lists the binary log files on the server. This statement is used as
part of the procedure described in [purge-binary-logs], that shows how
to determine which logs can be purged.
mysql> SHOW BINARY LOGS;
+---------------+-----------+
| Log_name | File_size |
+---------------+-----------+
| binlog.000015 | 724935 |
| binlog.000016 | 733481 |
+---------------+-----------+
