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<?xml version="1.0" encoding="ISO-8859-1"?>
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- project.
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- This project is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
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-->
<refentry id="fn_stringdate">
<refmeta>
<refentrytitle>stringdate</refentrytitle>
<refmiscinfo>time</refmiscinfo>
<refmiscinfo>type</refmiscinfo>
</refmeta>
<refnamediv>
<refname>stringdate</refname>
<refpurpose> Convert a string to a datetime</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_stringdate">
<funcprototype id="fproto_stringdate">
<funcdef><function>stringdate</function></funcdef>
<paramdef>in <parameter>str</parameter> varchar</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_stringdate"><title>Description</title>
<para>stringdate converts dates and timestamps from text to the internal
<type>DATETIME</type> type.</para>
<para>The external format is: YYYY.MM.DD hh:mm.ss uuuuuu
where uuuuuu represents number of microseconds.</para>
<para>If trailing parts are omitted from the string given to stringdate,
they are assumed to be zero. The three first parts are mandatory.
Note that use of <programlisting>cast (x as datetime)</programlisting> is preferred
over this function.</para>
</refsect1>
<refsect1 id="params_stringdate"><title>Parameters</title>
<refsect2><title>str</title>
<para>A <type>varchar</type> date in human-readable (external)
format.</para>
</refsect2>
</refsect1>
<refsect1 id="errors_stringdate"><title>Errors</title>
<table><title>Errors signalled by <function>datestring</function> and
<function>stringdate</function></title>
<tgroup cols="4">
<tbody>
<row>
<entry>SQLState</entry>
<entry>Error Code</entry>
<entry>Error Text</entry>
<entry>Description</entry>
</row>
<row>
<entry><errorcode>22007</errorcode></entry>
<entry><errorcode>DT006</errorcode></entry>
<entry><errorname>Cannot convert <offending string> to datetime</errorname></entry>
<entry></entry>
</row>
<row>
<entry><errorcode>22002</errorcode></entry>
<entry><errorcode>DT007</errorcode></entry>
<entry><errorname>Nulls not allowed as parameters to stringdate</errorname></entry>
<entry></entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
<refsect1 id="examples"><title>Examples</title>
<example id="ex_stringdate_1">
<title>Stringdate example with datestring_GMT</title>
<para>We are at central european time zone CET(GMT+1).</para>
<screen>SQL> use Demo;
Done. -- 3 msec.
SQL> select (datestring_GMT (stringdate ('2000-01-01 22:00')));
callret
VARCHAR
_______________________________________________________________________________
2000-01-01 21:00:00.000000
1 Rows. -- 45 msec.
SQL> select left (datestring(ShippedDate), 10) from Orders
where ShippedDate > stringdate ('1996.6.3');
callret
VARCHAR
_______________________________________________________________________________
1996-06-04
1996-06-04
1996-06-05
1996-06-05
1996-06-05
5 Rows. -- 3 msec.
</screen>
</example>
</refsect1>
<refsect1 id="seealso_stringdate"><title>See Also</title>
<para>
<link linkend="fn_datestring"><function>datestring</function></link>
</para>
<para> The discussion of
<link linkend="DTTIMESTAMP"><type>TIMESTAMP</type></link>
datatype in section <link linkend="coredbengine">Database Concepts</link>
of the documentation.</para>
</refsect1>
</refentry>
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