<!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: encode_base64 - Virtuoso Functions Guide" /> <meta name="dc.subject" content="Function: encode_base64 - 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: encode_base64 - 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_encode_base64" /> <img src="../images/misc/logo.jpg" alt="" /> <h1>22. Virtuoso Functions Guide - encode_base64</h1> </div> <div id="navbartop"> <div> <a class="link" href="functions.html">Chapter Contents</a> | <a class="link" href="functions.html#dict" title="Dictionary Manipulation">Prev</a> | <a class="link" href="fn_split_and_decode.html" title="split_and_decode">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 class="selected" href="functions.html#encoding">Encoding & Decoding</a> </div> <div class="selected"> <div> <a class="selected" href="fn_encode_base64.html">encode_base64</a> </div> <div> <a href="fn_split_and_decode.html">split_and_decode</a> </div> <div> <a href="fn_uudecode.html">uudecode</a> </div> <div> <a href="fn_uuencode.html">uuencode</a> </div> </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 href="functions.html#ws">Web & Internet</a> </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>encode_base64</h2> <div class="refpurpose">base64-encode/decode a string</div> <div class="funcsynopsis"> <span class="funcdef"> <span class="function">decode_base64</span> </span> (<span class="paramdef">in <span class="parameter">str</span> varchar</span>); </div> <div class="funcsynopsis"> <span class="funcdef"> <span class="function">encode_base64</span> </span> (<span class="paramdef">in <span class="parameter">str</span> varchar</span>); </div> <div class="refsect1"> <div class="refsect1title">Description</div> <p>These functions convert strings from/to base64-encoding.</p> </div> <div class="refsect1"> <div class="refsect1title">Parameters</div> <div class="refsect2"> <span class="refsect2title">str – </span> A <span class="computeroutput">varchar</span> value. </div> </div> <div class="refsect1"> <div class="refsect1title">Return Values</div> <p> <span class="computeroutput">encode_base64</span> returns a <span class="computeroutput">varchar</span> containing base64-encoded data. <span class="computeroutput">decode_base64</span> returns a <span class="computeroutput">varchar</span> containing the result of the base64-decoding.</p> </div> <div class="refsect1"> <div class="refsect1title">Examples</div> <a name="ex_encode_base64_1" /> <div class="example"> <div class="exampletitle">Simple Example</div> <p>Base64-encode a string</p> <div> <pre class="screen">SQL> select encode_base64('Rutabaga'); callret VARCHAR _______________________________________________________________________________ UnV0YWJhZ2E= 1 Rows. -- 25 msec. </pre> </div> </div> <a name="ex_encode_base64" /> <div class="example"> <div class="exampletitle">Web example</div> <p>Using encode-base64 with serialize to persist complex data</p> <div> <pre class="screen">declare n any; n := vector ('a', 3.14157, 4711, 'Hic Iacet Corpus.'); http (sprintf ('<input type="hidden" name="saved" value="%s">', encode_base64 (serialize (n)))); </pre> </div> <p>To retrieve this data in VSP context when handling a form submit:</p> <div> <pre class="screen">declare n any; n := deserialize (decode_base64 (get_keyword ('saved', params, ''))); </pre> </div> </div> </div> <div class="refsect1"> <div class="refsect1title">See Also</div> <p> <a href="fn_serialize.html">serialize</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>