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CALL.7
'\" t .\" Title: CALL .\" Author: The PostgreSQL Global Development Group .\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/> .\" Date: 2023 .\" Manual: PostgreSQL 13.13 Documentation .\" Source: PostgreSQL 13.13 .\" Language: English .\" .TH "CALL" "7" "2023" "PostgreSQL 13.13" "PostgreSQL 13.13 Documentation" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" CALL \- invoke a procedure .SH "SYNOPSIS" .sp .nf CALL \fIname\fR ( [ \fIargument\fR ] [, \&.\&.\&.] ) .fi .SH "DESCRIPTION" .PP \fBCALL\fR executes a procedure\&. .PP If the procedure has any output parameters, then a result row will be returned, containing the values of those parameters\&. .SH "PARAMETERS" .PP \fIname\fR .RS 4 The name (optionally schema\-qualified) of the procedure\&. .RE .PP \fIargument\fR .RS 4 An input argument for the procedure call\&. See Section\ \&4.3 for the full details on function and procedure call syntax, including use of named parameters\&. .RE .SH "NOTES" .PP The user must have EXECUTE privilege on the procedure in order to be allowed to invoke it\&. .PP To call a function (not a procedure), use \fBSELECT\fR instead\&. .PP If \fBCALL\fR is executed in a transaction block, then the called procedure cannot execute transaction control statements\&. Transaction control statements are only allowed if \fBCALL\fR is executed in its own transaction\&. .PP PL/pgSQL handles output parameters in \fBCALL\fR commands differently; see Section\ \&42.6.3\&. .SH "EXAMPLES" .sp .if n \{\ .RS 4 .\} .nf CALL do_db_maintenance(); .fi .if n \{\ .RE .\} .SH "COMPATIBILITY" .PP \fBCALL\fR conforms to the SQL standard\&. .SH "SEE ALSO" CREATE PROCEDURE (\fBCREATE_PROCEDURE\fR(7))