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Contents
Preface

Virtuoso Functions Guide

Administration
db.dba.vacuum
user_change_password
user_create
user_drop
user_get_option
user_grant_role
user_revoke_role
user_role_create
user_role_drop
user_set_option
user_set_qualifier
cfg_item_count
cfg_item_name
cfg_item_value
cfg_section_count
cfg_section_name
cfg_write
checkpoint_interval
disconnect_user
fk_check_input_value...
key_estimate
log_enable
log_text
prof_enable
prof_sample
server_root
status
sys_lockdown
sys_stat
system
trace_status
user_set_password
virtuoso_ini_path
Aggregate Functions
Array Manipulation
BPEL APIs
Backup
Compression
Cursor
Date & Time Manipulation
Debug
Dictionary Manipulation
Encoding & Decoding
File Manipulation
Free Text
Hashing / Cryptographic
LDAP
Locale
Mail
Miscellaneous
Number
RDF data
Remote SQL Data Source
Replication
SOAP
SQL
String
Transaction
Type Mapping
UDDI
User Defined Types & The CLR
Virtuoso Java PL API
Virtuoso Server Extension Interface (VSEI)
Web Server & Internet
XML
XPATH & XQUERY

Functions Index

system

runs a shell command from SQL
system (in command varchar);
Description

The system function will run a shell command from SQL. The shell command is executed in the server's current directory as the user that owns the database server process.

This function is available to dba users only. Since this is a security risk this feature is normally disabled. It can be enabled by setting the AllowOSCalls setting in virtuoso.ini to 1.