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PG.CENTER 连接 PostgreSQL 文档、百科与生态知识。由 Pigsty 维护。

Wiki / psql 命令

\?

Shows help information. The optional topic parameter (defaulting to commands ) selects which part of psql is explained: commands describes psql 's backslash commands; options describes the command-line options that can be passed to psql ; and variables shows help about psql configuration variables.

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
\?
command
\?
manual path
app-psql.html#APP-PSQL-META-COMMAND-QUESTION-MARK
modifiers
未知
signature
\? [ topic ]
spellings
\?

版本定义 PG 18

\? [ topic ]

Shows help information. The optional topic parameter (defaulting to commands) selects which part of psql is explained: commands describes psql's backslash commands; options describes the command-line options that can be passed to psql; and variables shows help about psql configuration variables.

精确保留大小写的命令写法

  • \?

Spellings in this manual definition

CommandDocumented suffix modifiers
\?None 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