Oracle 5.0, Справочное руководство

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mysql
— The MySQL Command-Line Tool
278
• Set the
MYSQL_HISTFILE
environment variable to
/dev/null
. To cause this setting to take effect
each time you log in, put it in one of your shell's startup files.
• Create
.mysql_history
as a symbolic link to
/dev/null
; this need be done only once:
shell> ln -s /dev/null $HOME/.mysql_history
4.5.1.4.
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 from the contents of the MySQL Reference Manual. The proper operation of this command
requires that the help tables in the
mysql
database be initialized with help topic information (see
Section 5.1.8, “Server-Side Help” ).
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
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.