169 lines
3.4 KiB
Plaintext
169 lines
3.4 KiB
Plaintext
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/Attic/current_timestamp.sgml,v 1.4 1999/07/22 15:09:09 thomas Exp $
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Postgres documentation
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-->
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<REFENTRY ID="SQL-CURRENT-TIMESTAMP">
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<REFMETA>
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<REFENTRYTITLE>
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SQL_CURRENT_TIMESTAMP
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</REFENTRYTITLE>
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<REFMISCINFO>SQL - Functions</REFMISCINFO>
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</REFMETA>
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<REFNAMEDIV>
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<REFNAME>
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CURRENT_TIMESTAMP
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</REFNAME>
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<REFPURPOSE>
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Returns the current date and time
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</REFPURPOSE>
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<REFSYNOPSISDIV>
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<REFSYNOPSISDIVINFO>
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<DATE>1998-04-15</DATE>
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</REFSYNOPSISDIVINFO>
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<synopsis>
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CURRENT_TIMESTAMP
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</SYNOPSIS>
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<REFSECT2 ID="R2-SQL-CURRENT-TIMESTAMP-1">
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<REFSECT2INFO>
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<DATE>1998-04-15</DATE>
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</REFSECT2INFO>
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<TITLE>
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Inputs
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</TITLE>
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<PARA>
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None.
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</REFSECT2>
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<REFSECT2 ID="R2-SQL-CURRENT-TIMESTAMP-2">
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<REFSECT2INFO>
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<DATE>1998-04-15</DATE>
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</REFSECT2INFO>
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<TITLE>
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Outputs
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</TITLE>
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<PARA>
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<VARIABLELIST>
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<VARLISTENTRY>
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<TERM>
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<replaceable>timestamp</replaceable>
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<LISTITEM>
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<PARA>
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Returns "<replaceable class="parameter">today</replaceable>" and "<replaceable class="parameter">now</replaceable>".
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</VARIABLELIST>
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</REFSECT2>
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</REFSYNOPSISDIV>
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<REFSECT1 ID="R1-SQL-CURRENT-TIMESTAMP-1">
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<REFSECT1INFO>
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<DATE>1998-04-15</DATE>
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</REFSECT1INFO>
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<TITLE>
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Description
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</TITLE>
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<PARA>
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The niladic CURRENT_TIMESTAMP function has a data type of
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TIMESTAMP and returns the date and local time at which it is run.
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</PARA>
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<REFSECT2 ID="R2-SQL-CURRENT-TIMESTAMP-3">
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<REFSECT2INFO>
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<DATE>1998-04-15</DATE>
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</REFSECT2INFO>
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<TITLE>
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Notes
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</TITLE>
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<PARA>
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Refer to the SET TIME ZONE statement for a further description
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of local time.
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</PARA>
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</REFSECT2>
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<REFSECT1 ID="R1-SQL-CURRENT-TIMESTAMP-2">
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<TITLE>
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Usage
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</TITLE>
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<PARA>
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Display CURRENT_TIMESTAMP:
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</PARA>
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<ProgramListing>
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SELECT CURRENT_TIMESTAMP AS date_and_time;
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date_and_time
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----------------------
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1998-03-31 07:41:21-08
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</ProgramListing>
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</REFSECT1>
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<REFSECT1 ID="R1-SQL-CURRENT-TIMESTAMP-3">
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<TITLE>
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Compatibility
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</TITLE>
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<PARA>
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</PARA>
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<REFSECT2 ID="R2-SQL-CURRENT-TIMESTAMP-4">
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<REFSECT2INFO>
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<DATE>1998-04-15</DATE>
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</REFSECT2INFO>
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<TITLE>
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SQL92
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</TITLE>
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<PARA>
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SQL92 specifies some additional capabilities for CURRENT_TIMESTAMP:
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</PARA>
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<VARIABLELIST>
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<VARLISTENTRY>
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<TERM>
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</TERM>
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<LISTITEM>
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<PARA>
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<VARIABLELIST>
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<VARLISTENTRY>
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<TERM>
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<ReturnValue>CURRENT_TIMESTAMP [ (<replaceable class="parameter">scale</replaceable>) ]</ReturnValue>
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</TERM>
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<LISTITEM>
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<PARA>
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The optional scale for CURRENT_TIMESTAMP, if specified, is an
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unsigned integer representing the number of digits in the
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optional seconds fraction of the time value represented
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by the function.
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</PARA>
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</LISTITEM>
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</VARLISTENTRY>
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</VARIABLELIST>
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</para>
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</LISTITEM>
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</VARLISTENTRY>
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</VARIABLELIST>
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</refsect2>
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</refsect1>
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</REFENTRY>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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sgml-parent-document:nil
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sgml-default-dtd-file:"../reference.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:"/usr/lib/sgml/catalog"
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sgml-local-ecat-files:nil
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End:
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-->
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