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<?xml version="1.0" encoding="ISO-8859-1"?>
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- under the terms of the GNU General Public License as published by the
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<refentry id="fn_ascii">
<refmeta>
<refentrytitle>ascii</refentrytitle>
<refmiscinfo>string</refmiscinfo>
</refmeta>
<refnamediv>
<refname>ascii</refname>
<refpurpose>Get ASCII value of a character</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_ascii">
<funcprototype id="fproto_ascii">
<funcdef>integer<function>ascii</function></funcdef>
<paramdef><parameter>arg</parameter> any</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_ascii">
<title>Description</title>
<para><function>ascii</function> returns the ASCII value of the first
character of a string. If an empty string is given, then zero is returned.</para>
</refsect1>
<refsect1 id="params_ascii"><title>Parameters</title>
<refsect2><title><parameter>arg</parameter></title>
<para>A <type>string</type> </para>
</refsect2>
</refsect1>
<refsect1 id="ret_ascii"><title>Return Values</title>
<para>The <type>integer</type> ASCII value of the first character of
the input string is returned. If the input string is empty, then zero is
returned</para>
</refsect1>
<refsect1 id="errors_ascii"><title>Errors</title>
<table><title>Errors signalled by ascii</title>
<tgroup cols="4">
<thead><row><entry>SQLState</entry><entry>Error Code</entry><entry>Error Text</entry><entry>Description</entry></row></thead>
<tbody>
<row>
<entry><errorcode>22023</errorcode></entry>
<entry><errorcode>SR044</errorcode></entry>
<entry><errorname>Function ascii needs a string as an argument, not an argument of type %d (= %s)</errorname></entry>
<entry></entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
<refsect1 id="examples_ascii"><title>Examples</title>
<example id="ex_ascii_1"><title>Simple example</title>
<screen>SQL> select ascii('Zardoz');
callret
INTEGER
_______________________________________________________________________________
90
1 Rows. -- 14 msec.
</screen>
</example>
</refsect1>
<refsect1 id="seealso_ascii"><title>See Also</title>
<para><link linkend="fn_aref"><function>aref</function></link>,
<link linkend="fn_chr"><function>chr</function></link></para>
</refsect1>
</refentry>
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