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Wiki / psql 命令

\help

Gives syntax help on the specified SQL command. If command is not specified, then psql will list all the commands for which syntax help is available. If command is an asterisk ( * ), then syntax help on all SQL commands is shown.

当前阅读 PG 18·选择有来源记录的版本

此版本暂无所选语言的定义,以下显示原始英文内容。

Client
psql 18.6
Case-sensitive spelling
\help
command
\help
manual path
app-psql.html#APP-PSQL-META-COMMAND-HELP
modifiers
未知
signature
\h or \help [ command ]
spellings
\h, \help

版本定义 PG 18

\h or \help [ command ]

Gives syntax help on the specified SQL command. If command is not specified, then psql will list all the commands for which syntax help is available. If command is an asterisk (*), then syntax help on all SQL commands is shown.

Unlike most other meta-commands, the entire remainder of the line is always taken to be the argument(s) of \help, and neither variable interpolation nor backquote expansion are performed in the arguments.

Note

To simplify typing, commands that consists of several words do not have to be quoted. Thus it is fine to type \help alter table.

精确保留大小写的命令写法

  • \h
  • \help

Spellings in this manual definition

CommandDocumented suffix modifiers
\hNone listed in this signature
\helpNone listed in this signature

比较版本

来源引用

完整定义与证据 JSON

定义来源

center · PostgreSQL 18 · ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8

正文语言: en · ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8