'\" t
.\"     Title: DROP PROCEDURE
.\"    Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 2021
.\"    Manual: PostgreSQL 13.4 Documentation
.\"    Source: PostgreSQL 13.4
.\"  Language: English
.\"
.TH "DROP PROCEDURE" "7" "2021" "PostgreSQL 13.4" "PostgreSQL 13.4 Documentation"
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.SH "NAME"
DROP_PROCEDURE \- remove a procedure
.SH "SYNOPSIS"
.sp
.nf
DROP PROCEDURE [ IF EXISTS ] \fIname\fR [ ( [ [ \fIargmode\fR ] [ \fIargname\fR ] \fIargtype\fR [, \&.\&.\&.] ] ) ] [, \&.\&.\&.]
    [ CASCADE | RESTRICT ]
.fi
.SH "DESCRIPTION"
.PP
\fBDROP PROCEDURE\fR
removes the definition of an existing procedure\&. To execute this command the user must be the owner of the procedure\&. The argument types to the procedure must be specified, since several different procedures can exist with the same name and different argument lists\&.
.SH "PARAMETERS"
.PP
IF EXISTS
.RS 4
Do not throw an error if the procedure does not exist\&. A notice is issued in this case\&.
.RE
.PP
\fIname\fR
.RS 4
The name (optionally schema\-qualified) of an existing procedure\&. If no argument list is specified, the name must be unique in its schema\&.
.RE
.PP
\fIargmode\fR
.RS 4
The mode of an argument:
IN
or
VARIADIC\&. If omitted, the default is
IN\&.
.RE
.PP
\fIargname\fR
.RS 4
The name of an argument\&. Note that
\fBDROP PROCEDURE\fR
does not actually pay any attention to argument names, since only the argument data types are needed to determine the procedure\*(Aqs identity\&.
.RE
.PP
\fIargtype\fR
.RS 4
The data type(s) of the procedure\*(Aqs arguments (optionally schema\-qualified), if any\&.
.RE
.PP
CASCADE
.RS 4
Automatically drop objects that depend on the procedure, and in turn all objects that depend on those objects (see
Section\ \&5.14)\&.
.RE
.PP
RESTRICT
.RS 4
Refuse to drop the procedure if any objects depend on it\&. This is the default\&.
.RE
.SH "EXAMPLES"
.sp
.if n \{\
.RS 4
.\}
.nf
DROP PROCEDURE do_db_maintenance();
.fi
.if n \{\
.RE
.\}
.SH "COMPATIBILITY"
.PP
This command conforms to the SQL standard, with these
PostgreSQL
extensions:
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The standard only allows one procedure to be dropped per command\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The
IF EXISTS
option
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The ability to specify argument modes and names
.RE
.SH "SEE ALSO"
CREATE PROCEDURE (\fBCREATE_PROCEDURE\fR(7)), ALTER PROCEDURE (\fBALTER_PROCEDURE\fR(7)), DROP FUNCTION (\fBDROP_FUNCTION\fR(7)), DROP ROUTINE (\fBDROP_ROUTINE\fR(7))