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'\" t
.\"     Title: DROP ROLE
.\"    Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: 2017-11-06
.\"    Manual: PostgreSQL 9.2.24 Documentation
.\"    Source: PostgreSQL 9.2.24
.\"  Language: English
.\"
.TH "DROP ROLE" "7" "2017-11-06" "PostgreSQL 9.2.24" "PostgreSQL 9.2.24 Documentation"
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.SH "NAME"
DROP_ROLE \- remove a database role
.\" DROP ROLE
.SH "SYNOPSIS"
.sp
.nf
DROP ROLE [ IF EXISTS ] \fIname\fR [, \&.\&.\&.]
.fi
.SH "DESCRIPTION"
.PP
\fBDROP ROLE\fR
removes the specified role(s)\&. To drop a superuser role, you must be a superuser yourself; to drop non\-superuser roles, you must have
CREATEROLE
privilege\&.
.PP
A role cannot be removed if it is still referenced in any database of the cluster; an error will be raised if so\&. Before dropping the role, you must drop all the objects it owns (or reassign their ownership) and revoke any privileges the role has been granted on other objects\&. The
REASSIGN OWNED (\fBREASSIGN_OWNED\fR(7))
and
DROP OWNED (\fBDROP_OWNED\fR(7))
commands can be useful for this purpose; see
Section 20.4, \(lqDropping Roles\(rq, in the documentation
for more discussion\&.
.PP
However, it is not necessary to remove role memberships involving the role;
\fBDROP ROLE\fR
automatically revokes any memberships of the target role in other roles, and of other roles in the target role\&. The other roles are not dropped nor otherwise affected\&.
.SH "PARAMETERS"
.PP
IF EXISTS
.RS 4
Do not throw an error if the role does not exist\&. A notice is issued in this case\&.
.RE
.PP
\fIname\fR
.RS 4
The name of the role to remove\&.
.RE
.SH "NOTES"
.PP
PostgreSQL
includes a program
\fBdropuser\fR(1)
that has the same functionality as this command (in fact, it calls this command) but can be run from the command shell\&.
.SH "EXAMPLES"
.PP
To drop a role:
.sp
.if n \{\
.RS 4
.\}
.nf
DROP ROLE jonathan;
.fi
.if n \{\
.RE
.\}
.SH "COMPATIBILITY"
.PP
The SQL standard defines
\fBDROP ROLE\fR, but it allows only one role to be dropped at a time, and it specifies different privilege requirements than
PostgreSQL
uses\&.
.SH "SEE ALSO"
CREATE ROLE (\fBCREATE_ROLE\fR(7)), ALTER ROLE (\fBALTER_ROLE\fR(7)), SET ROLE (\fBSET_ROLE\fR(7))
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