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<?xml version="1.0" encoding="ISO-8859-1"?>
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<refentry id="fn_exec_next">
<refmeta>
<refentrytitle>exec_next</refentrytitle>
<refmiscinfo>sql</refmiscinfo>
</refmeta>
<refnamediv>
<refname>exec_next</refname>
<refpurpose>Get next result from a result set</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_exec_next">
<funcprototype id="fproto_exec_next">
<funcdef>integer retcode <function>exec_next</function></funcdef>
<paramdef>in <parameter>cursor_handle</parameter> long</paramdef>
<paramdef>out <parameter>sql_state</parameter> varchar</paramdef>
<paramdef>out <parameter>sql_error</parameter> varchar</paramdef>
<paramdef>out <parameter>row_array</parameter> vector</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_exec_next"><title>Description</title>
<para>Use <function>exec_next()</function> to
iterate over a result set produced by a statement run
with <link linkend="fn_exec"><function>exec</function></link>.</para>
<simplelist>
<member>open a cursor with <link linkend="fn_exec">exec</link>.
</member>
<member>loop over the results with exec_next</member>
<member>if exec_next does not return an error or SQL_NO_DATA_FOUND
continue the loop with exec_next, otherwise</member>
<member>close the cursor with exec_close</member>
</simplelist>
</refsect1>
<refsect1 id="params_rnext"><title>Parameters</title>
<refsect2><title>cursor_handle</title>
<para>The <type>long</type> cursor handle as obtained from exec().</para>
</refsect2>
<refsect2><title>row_array</title>
<para>An output <type>vector</type> that will contain the result
columns.</para>
</refsect2>
<refsect2><title>sql_state</title>
<para>Optional <type>varchar</type> output parameter for SQL state.</para>
</refsect2>
<refsect2><title>sql_error</title>
<para>Optional <type>varchar</type> output parameter for any error
message.</para>
</refsect2>
</refsect1>
<refsect1 id="ret_exec_next"><title>Return Values</title>
<para>All data is returned in output parameters.</para>
</refsect1>
<refsect1 id="seealso_exec_next"><title>See Also</title>
<para><link linkend="fn_exec"><function>exec()</function></link>,
<link linkend="fn_exec_close"><function>exec_close()</function></link>.</para>
</refsect1>
</refentry>
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