dropdb.1

PostgreSQL 8.2中增加了很多企业用户所需要的功能和性能上的提高,其开发团队说,该版本将加速更多企业向该数据库移植.核心开发成员之一Bruce Momjian表示,在新版PostgreSQL

.\\" auto-generated by docbook2man-spec $Revision: 1.1.1.1 $
.TH "DROPDB" "1" "2008-01-03" "Application" "PostgreSQL Client Applications"
.SH NAME
dropdb \- remove a PostgreSQL database

.SH SYNOPSIS
.sp
\fBdropdb\fR [ \fB\fIoption\fB\fR\fI...\fR ]  \fB\fIdbname\fB\fR
.SH "DESCRIPTION"
.PP
\fBdropdb\fR destroys an existing
PostgreSQL database.
The user who executes this command must be a database
superuser or the owner of the database.
.PP
\fBdropdb\fR is a wrapper around the
SQL command DROP DATABASE [\fBdrop_database\fR(7)].
There is no effective difference between dropping databases via
this utility and via other methods for accessing the server.
.SH "OPTIONS"
.PP
\fBdropdb\fR accepts the following command-line arguments:
.TP
\fB\fIdbname\fB\fR
Specifies the name of the database to be removed.
.TP
\fB-e\fR
.TP
\fB--echo\fR
Echo the commands that \fBdropdb\fR generates
and sends to the server.
.TP
\fB-i\fR
.TP
\fB--interactive\fR
Issues a verification prompt before doing anything destructive.
.TP
\fB-q\fR
.TP
\fB--quiet\fR
Do not display a response.
.PP
.PP
\fBdropdb\fR also accepts the following
command-line arguments for connection parameters:
.TP
\fB-h \fIhost\fB\fR
.TP
\fB--host \fIhost\fB\fR
Specifies the host name of the machine on which the 
server
is running. If the value begins with a slash, it is used 
as the directory for the Unix domain socket.
.TP
\fB-p \fIport\fB\fR
.TP
\fB--port \fIport\fB\fR
Specifies the TCP port or local Unix domain socket file 
extension on which the server
is listening for connections.
.TP
\fB-U \fIusername\fB\fR
.TP
\fB--username \fIusername\fB\fR
User name to connect as
.TP
\fB-W\fR
.TP
\fB--password\fR
Force password prompt.
.PP
.SH "ENVIRONMENT"
.TP
\fBPGHOST\fR
.TP
\fBPGPORT\fR
.TP
\fBPGUSER\fR
Default connection parameters
.PP
This utility, like most other PostgreSQL utilities,
also uses the environment variables supported by \fBlibpq\fR
(see in the documentation).
.PP
.SH "DIAGNOSTICS"
.PP
In case of difficulty, see DROP DATABASE [\fBdrop_database\fR(7)] and \fBpsql\fR(1) for
discussions of potential problems and error messages.
The database server must be running at the
targeted host. Also, any default connection settings and environment
variables used by the \fBlibpq\fR front-end
library will apply.
.SH "EXAMPLES"
.PP
To destroy the database demo on the default
database server:
.sp
.nf
$ \fBdropdb demo\fR
DROP DATABASE
.sp
.fi
.PP
To destroy the database demo using the
server on host eden, port 5000, with verification and a peek
at the underlying command:
.sp
.nf
$ \fBdropdb -p 5000 -h eden -i -e demo\fR
Database "demo" will be permanently deleted.
Are you sure? (y/n) \fBy\fR
DROP DATABASE "demo"
DROP DATABASE
.sp
.fi
.SH "SEE ALSO"
\fBcreatedb\fR(1), DROP DATABASE [\fBdrop_database\fR(7)]