<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head profile="http://internetalchemy.org/2003/02/profile">
<link rel="foaf" type="application/rdf+xml" title="FOAF" href="http://www.openlinksw.com/dataspace/uda/about.rdf" />
<link rel="schema.dc" href="http://purl.org/dc/elements/1.1/" />
<meta name="dc.title" content="Function: connection_set - Virtuoso Functions Guide" />
<meta name="dc.subject" content="Function: connection_set - Virtuoso Functions Guide" />
<meta name="dc.creator" content="OpenLink Software Documentation Team ; " />
<meta name="dc.copyright" content="OpenLink Software, 1999 - 2009" />
<link rel="top" href="index.html" title="OpenLink Virtuoso Universal Server: Documentation" />
<link rel="search" href="/doc/adv_search.vspx" title="Search OpenLink Virtuoso Universal Server: Documentation" />
<link rel="parent" href="functions.html" title="Chapter Contents" />
<link rel="prev" href="appendixa.html" title="Appendix" />
<link rel="next" href="functions.html#.html" title="" />
<link rel="shortcut icon" href="../images/misc/favicon.ico" type="image/x-icon" />
<link rel="stylesheet" type="text/css" href="doc.css" />
<link rel="stylesheet" type="text/css" href="/doc/translation.css" />
<title>Function: connection_set - Virtuoso Functions Guide</title>
<meta http-equiv="Content-Type" content="text/xhtml; charset=UTF-8" />
<meta name="author" content="OpenLink Software Documentation Team ; " />
<meta name="copyright" content="OpenLink Software, 1999 - 2009" />
<meta name="keywords" content="" />
<meta name="GENERATOR" content="OpenLink XSLT Team" />
</head>
<body>
<div id="header">
<a name="fn_connection_set" />
<img src="../images/misc/logo.jpg" alt="" />
<h1>22. Virtuoso Functions Guide - connection_set</h1>
</div>
<div id="navbartop">
<div>
<a class="link" href="functions.html">Chapter Contents</a> | <a class="link" href="fn_connection_is_dirty.html" title="connection_is_dirty">Prev</a> | <a class="link" href="fn_connection_vars.html" title="connection_vars">Next</a>
</div>
</div>
<div id="currenttoc">
<form method="post" action="/doc/adv_search.vspx">
<div class="search">Keyword Search: <br />
<input type="text" name="q" /> <input type="submit" name="go" value="Go" />
</div>
</form>
<div>
<a href="http://www.openlinksw.com/">www.openlinksw.com</a>
</div>
<div>
<a href="http://docs.openlinksw.com/">docs.openlinksw.com</a>
</div>
<br />
<div>
<a href="index.html">Book Home</a>
</div>
<br />
<div>
<a href="contents.html">Contents</a>
</div>
<div>
<a href="preface.html">Preface</a>
</div>
<br />
<div>
<a class="selected" href="functions.html">Virtuoso Functions Guide</a>
</div>
<br />
<div>
<a href="functions.html#admin">Administration</a>
</div>
<div>
<a href="functions.html#aggr">Aggregate Functions</a>
</div>
<div>
<a href="functions.html#array">Array Manipulation</a>
</div>
<div>
<a href="functions.html#bpel">BPEL APIs</a>
</div>
<div>
<a href="functions.html#backup">Backup</a>
</div>
<div>
<a href="functions.html#compression">Compression</a>
</div>
<div>
<a href="functions.html#cursors">Cursor</a>
</div>
<div>
<a href="functions.html#time">Date & Time Manipulation</a>
</div>
<div>
<a href="functions.html#debug">Debug</a>
</div>
<div>
<a href="functions.html#dict">Dictionary Manipulation</a>
</div>
<div>
<a href="functions.html#encoding">Encoding & Decoding</a>
</div>
<div>
<a href="functions.html#file">File Manipulation</a>
</div>
<div>
<a href="functions.html#ft">Free Text</a>
</div>
<div>
<a href="functions.html#hash">Hashing / Cryptographic</a>
</div>
<div>
<a href="functions.html#ldap">LDAP</a>
</div>
<div>
<a href="functions.html#localization">Locale</a>
</div>
<div>
<a href="functions.html#mail">Mail</a>
</div>
<div>
<a href="functions.html#misc">Miscellaneous</a>
</div>
<div>
<a href="functions.html#number">Number</a>
</div>
<div>
<a href="functions.html#phrz">Phrases</a>
</div>
<div>
<a href="functions.html#rdf">RDF data</a>
</div>
<div>
<a href="functions.html#rmt">Remote SQL Data Source</a>
</div>
<div>
<a href="functions.html#repl">Replication</a>
</div>
<div>
<a href="functions.html#soap">SOAP</a>
</div>
<div>
<a href="functions.html#sql">SQL</a>
</div>
<div>
<a href="functions.html#string">String</a>
</div>
<div>
<a href="functions.html#txn">Transaction</a>
</div>
<div>
<a href="functions.html#type">Type Mapping</a>
</div>
<div>
<a href="functions.html#uddi">UDDI</a>
</div>
<div>
<a href="functions.html#udt">User Defined Types & The CLR</a>
</div>
<div>
<a href="functions.html#vad">VAD</a>
</div>
<div>
<a href="functions.html#jvmpl">Virtuoso Java PL API</a>
</div>
<div>
<a href="functions.html#bif">Virtuoso Server Extension Interface (VSEI)</a>
</div>
<div>
<a class="selected" href="functions.html#ws">Web & Internet</a>
</div>
<div class="selected">
<div>
<a href="fn_dav_api_add.html">dav add & update fun...</a>
</div>
<div>
<a href="fn_dav_api_lock.html">dav lock manipulatio...</a>
</div>
<div>
<a href="fn_dav_api_change.html">dav manipulation fun...</a>
</div>
<div>
<a href="fn_dav_api_search.html">dav search functions</a>
</div>
<div>
<a href="fn_dav_exp.html">dav_exp</a>
</div>
<div>
<a href="fn_lfs_exp.html">lfs_exp</a>
</div>
<div>
<a href="fn_serv_queue_top.html">serv_queue_top</a>
</div>
<div>
<a href="fn_urlrewrite_create_regex_rule.html">urlrewrite_create_re...</a>
</div>
<div>
<a href="fn_USER_KEY_LOAD.html">user_key_load</a>
</div>
<div>
<a href="fn_vhost_define.html">vhost_define</a>
</div>
<div>
<a href="fn_vhost_remove.html">vhost_remove</a>
</div>
<div>
<a href="fn_dav_api_user.html">webdav users & group...</a>
</div>
<div>
<a href="fn_client_attr.html">client_attr</a>
</div>
<div>
<a href="fn_connection_get.html">connection_get</a>
</div>
<div>
<a href="fn_connection_id.html">connection_id</a>
</div>
<div>
<a href="fn_connection_is_dirty.html">connection_is_dirty</a>
</div>
<div>
<a class="selected" href="fn_connection_set.html">connection_set</a>
</div>
<div>
<a href="fn_connection_vars.html">connection_vars</a>
</div>
<div>
<a href="fn_connection_vars_set.html">connection_vars_set</a>
</div>
<div>
<a href="fn_dbname.html">dbname</a>
</div>
<div>
<a href="fn_ftp_get.html">ftp_get</a>
</div>
<div>
<a href="fn_ftp_ls.html">ftp_ls</a>
</div>
<div>
<a href="fn_ftp_put.html">ftp_put</a>
</div>
<div>
<a href="fn_get_certificate_info.html">get_certificate_info</a>
</div>
<div>
<a href="fn_get_keyword.html">get_keyword</a>
</div>
<div>
<a href="fn_get_keyword_ucase.html">get_keyword_ucase</a>
</div>
<div>
<a href="fn_http.html">http</a>
</div>
<div>
<a href="fn_http_acl_get.html">http_acl_get</a>
</div>
<div>
<a href="fn_http_acl_remove.html">http_acl_remove</a>
</div>
<div>
<a href="fn_http_acl_set.html">http_acl_set</a>
</div>
<div>
<a href="fn_http_body_read.html">http_body_read</a>
</div>
<div>
<a href="fn_http_client.html">http_client</a>
</div>
<div>
<a href="fn_http_client_ext.html">http_client_ext</a>
</div>
<div>
<a href="fn_http_client_ip.html">http_client_ip</a>
</div>
<div>
<a href="fn_http_debug_log.html">http_debug_log</a>
</div>
<div>
<a href="fn_http_enable_gz.html">http_enable_gz</a>
</div>
<div>
<a href="fn_http_file.html">http_file</a>
</div>
<div>
<a href="fn_http_flush.html">http_flush</a>
</div>
<div>
<a href="fn_http_get.html">http_get</a>
</div>
<div>
<a href="fn_http_header.html">http_header</a>
</div>
<div>
<a href="fn_http_header_get.html">http_header_get</a>
</div>
<div>
<a href="fn_http_kill.html">http_kill</a>
</div>
<div>
<a href="fn_http_listen_host.html">http_listen_host</a>
</div>
<div>
<a href="fn_http_lock.html">http_lock</a>
</div>
<div>
<a href="fn_http_map_get.html">http_map_get</a>
</div>
<div>
<a href="fn_http_map_table.html">http_map_table</a>
</div>
<div>
<a href="fn_http_param.html">http_param</a>
</div>
<div>
<a href="fn_http_path.html">http_path</a>
</div>
<div>
<a href="fn_http_pending_req.html">http_pending_req</a>
</div>
<div>
<a href="fn_http_physical_path.html">http_physical_path</a>
</div>
<div>
<a href="fn_http_proxy.html">http_proxy</a>
</div>
<div>
<a href="fn_http_request_get.html">http_request_get</a>
</div>
<div>
<a href="fn_http_request_header.html">http_request_header</a>
</div>
<div>
<a href="fn_http_request_status.html">http_request_status</a>
</div>
<div>
<a href="fn_http_rewrite.html">http_rewrite</a>
</div>
<div>
<a href="fn_http_root.html">http_root</a>
</div>
<div>
<a href="fn_http_unlock.html">http_unlock</a>
</div>
<div>
<a href="fn_http_url.html">http_url</a>
</div>
<div>
<a href="fn_http_value.html">http_value</a>
</div>
<div>
<a href="fn_http_xslt.html">http_xslt</a>
</div>
<div>
<a href="fn_json_parse.html">json_parse</a>
</div>
<div>
<a href="fn_ses_connect.html">ses_connect</a>
</div>
<div>
<a href="fn_ses_disconnect.html">ses_disconnect</a>
</div>
<div>
<a href="fn_ses_read_line.html">ses_read_line</a>
</div>
<div>
<a href="fn_ses_write.html">ses_write</a>
</div>
<div>
<a href="fn_tcpip_gethostbyaddr.html">tcpip_gethostbyaddr</a>
</div>
<div>
<a href="fn_tcpip_gethostbyname.html">tcpip_gethostbyname</a>
</div>
<div>
<a href="fn_vsp_calculate_digest.html">vsp_calculate_digest</a>
</div>
<div>
<a href="fn_wsdl_import_udt.html">wsdl_import_udt</a>
</div>
</div>
<div>
<a href="functions.html#xml">XML</a>
</div>
<div>
<a href="functions.html#XPATH">XPATH & XQUERY</a>
</div>
<br />
<div>
<a href="functionidx.html">Functions Index</a>
</div>
<br />
</div>
<div id="text">
<h2>connection_set</h2>
<div class="refpurpose">Associates a value to the name in the context of the present connection</div>
<div class="funcsynopsis">
<span class="funcdef">
<span class="function">connection_set</span>
</span>
(<span class="paramdef">in <span class="parameter">name</span> varchar</span>,
<span class="paramdef">in <span class="parameter">value</span> any</span>);
</div>
<div class="refsect1">
<div class="refsect1title">Description</div>
<p>This associates a value to the name in the context of present
connection. The name should be a string and the value can be any
data type except blob, open cursor or an XML entity.
If the value is an array it may not contain the restricted types.</p>
<p>Connection variable setting is not logged and information
stored will be lost when the connection is closed.
The value can be retrieved by any future statement executing within
the same connection. Connection variables can
be used as a global variable mechanism for stored procedures, the
scope being the client connection.</p>
<p>In the case of VSP or SOAP this mechanism cannot be used to
pass information between requests by the same client. It will however,
be useful for having 'global variables' between procedures called
within the same HTTP request.
Note that this mechanism is used to provide persistent HTTP session variables in some cases but this works through special before and after code which stores the values set with this function into an external session structure. In this sense this function itself has nothing to do with web session management although it can be used as a component for such.
</p>
</div>
<div class="refsect1">
<div class="refsect1title">Parameters</div>
<div class="refsect2">
<span class="refsect2title">name – </span>
<span class="computeroutput">VARCHAR</span> name to associate the value with.
</div>
<div class="refsect2">
<span class="refsect2title">value – </span>
<span class="computeroutput">value</span> to be stored. May be any data type
except <span class="computeroutput">LOB</span>, open cursor or XML entity. If the value is an
<span class="computeroutput">array</span>, it may not contain the restricted types.
</div>
</div>
<div class="refsect1">
<div class="refsect1title">Return Values</div>
<p>None</p>
</div>
<div class="refsect1title">Errors</div>
<table class="data">
<tr>
<th class="data">SQLState</th>
<th class="data">Error Code</th>
<th class="data">Error Text</th>
<th class="data">Description</th>
</tr>
<tr>
<td class="data">
<a name="err22023" />
<span class="errorcode">22023</span>
</td>
<td class="data">
<a name="errSR049" />
<span class="errorcode">SR049</span>
</td>
<td class="data">
<span class="errorname">Data type is not suitable for storage into a global variable (connection_set)</span>
</td>
<td class="data" />
</tr>
</table>
<br />
<p />
<div class="refsect1">
<div class="refsect1title">Examples</div>
<a name="ex_connection_set" />
<div class="example">
<div class="exampletitle">Setting and Retrieving Connection Variables</div>
<p>
From SQL
</p>
<div>
<pre class="screen">
SQL> select connection_get('var_demo');
callret
VARCHAR
__________________________________________________________________
NULL
SQL> connection_set('var_demo', 'some arb data');
SQL> select connection_get('var_demo');
callret
VARCHAR
__________________________________________________________________
some arb data
</pre>
</div>
<p>From a VSP page</p>
<div>
<pre class="screen">
<?vsp
declare id integer;
id := 12;
connection_set ('ID', id);
connection_set ('saved_request' , lines);
?>
</pre>
</div>
</div>
</div>
<div class="refsect1">
<div class="refsect1title">See Also</div>
<p>
<a href="fn_connection_get.html">connection_get</a>
</p>
<p>
<a href="fn_connection_is_dirty.html">connection_is_dirty</a>
</p>
<p>
<a href="fn_connection_vars_set.html">connection_vars_set</a>
</p>
</div>
</div>
<div id="footer">
<div>Copyright© 1999 - 2009 OpenLink Software All rights reserved.</div>
<div id="validation">
<a href="http://validator.w3.org/check/referer">
<img src="http://www.w3.org/Icons/valid-xhtml10" alt="Valid XHTML 1.0!" height="31" width="88" />
</a>
<a href="http://jigsaw.w3.org/css-validator/">
<img src="http://jigsaw.w3.org/css-validator/images/vcss" alt="Valid CSS!" height="31" width="88" />
</a>
</div>
</div>
</body>
</html>
distrib
>
Fedora
>
14
>
x86_64
>
media
>
updates
>
by-pkgid
>
71d40963b505df4524269198e237b3e3
>
files
>
203
