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Contents
Preface

Virtuoso Functions Guide

Administration
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
att_local_name
quote_dotted
rclose
rexecute
rmoreresults
rnext
rstmtexec
sql_columns
sql_config_data_sour...
sql_data_sources
sql_driver_connect
sql_get_installed_dr...
sql_get_private_prof...
sql_gettypeinfo
sql_primary_keys
sql_procedures
sql_remove_dsn_from_...
sql_special_columns
sql_statistics
sql_tables
sql_transact
sql_write_file_dsn
sql_write_private_pr...
vd_remote_data_sourc...
vd_remote_proc_wrapp...
vd_remote_table
vd_statistics
vdd_disconnect_data_...
vdd_measure_rpc_time
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

vdd_disconnect_data_source

Disconnects a data source if no active transactions are using resources from it.
vdd_disconnect_data_source (in dsn varchar);
Description

You must have DBA privileges to run that function.

This function disconnects all the idle opened connections to a VDB datasource. If there are active transactions server-side, using connections to that datasource, they are not closed. After they finish, this function can be called again to disconnect the new idle connections.

The datasource continues to be valid and any subsequent transactions using this datasource will open a new connection to it.

Parameters
dsn – The name of the remote datasource to disconnect.
See Also

vd_remote_table

vd_remote_data_source

Manually Setting Up A Remote Data Source