database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-12-21 05:21:08 +03:00
Code Activity

Add new files from Oliver and Thomas.

Browse Source
This commit is contained in:
Thomas G. Lockhart
1998-09-01 15:53:09 +00:00
parent cdc91300c3
commit 1660e300e2
16 changed files with 3423 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

194
doc/src/sgml/ref/current_timestamp.sgml Normal file
View File

@@ -0,0 +1,194 @@
<REFENTRY ID="SQL-CURRENT-TIMESTAMP-1">
<REFMETA>
<REFENTRYTITLE>
SQL_CURRENT_TIMESTAMP
</REFENTRYTITLE>
<REFMISCINFO>SQL - Functions</REFMISCINFO>
</REFMETA>
<REFNAMEDIV>
<REFNAME>
SQL_CURRENT_TIMESTAMP
</REFNAME>
<REFPURPOSE>
returns the current timestamp, (i.e the
date "today" concatenated with time "now").
</REFPURPOSE>
<REFSYNOPSISDIV>
<REFSYNOPSISDIVINFO>
<DATE>1998-04-15</DATE>
</REFSYNOPSISDIVINFO>
<synopsis>
CURRENT_TIMESTAMP
</SYNOPSIS>
<REFSECT2 ID="R2-SQL-CURRENT-TIMESTAMP-1">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
Inputs
</TITLE>
<PARA>
</PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
</TERM>
<LISTITEM>
<PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
<ReturnValue>None</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
</PARA>
</LISTITEM>
</VARLISTENTRY>
</VARIABLELIST>
</LISTITEM>
</VARLISTENTRY>
</VARIABLELIST>
</REFSECT2>
<REFSECT2 ID="R2-SQL-CURRENT-TIMESTAMP-2">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
Outputs
</TITLE>
<PARA>
</PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
</TERM>
<LISTITEM>
<PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
<ReturnValue>Returns "<replaceable class="parameter">today</replaceable>" and "<replaceable class="parameter">now</replaceable>".</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
</PARA>
</LISTITEM>
</VARLISTENTRY>
</VARIABLELIST>
</LISTITEM>
</VARLISTENTRY>
</VARIABLELIST>
</REFSECT2>
</REFSYNOPSISDIV>
<REFSECT1 ID="R1-SQL-CURRENT-TIMESTAMP-1">
<REFSECT1INFO>
<DATE>1998-04-15</DATE>
</REFSECT1INFO>
<TITLE>
Description
</TITLE>
<PARA>
The niladic CURRENT_TIMESTAMP function has a data type of
TIMESTAMP and returns the date and local time at which it is run.
</PARA>
<REFSECT2 ID="R2-SQL-CURRENT-TIMESTAMP-3">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
Notes
</TITLE>
<PARA>
Refer to the SET TIME ZONE statement for a further description
of local time.
</PARA>
</REFSECT2>
<REFSECT1 ID="R1-SQL-CURRENT-TIMESTAMP-2">
<TITLE>
Usage
</TITLE>
<PARA>
Display CURRENT_TIMESTAMP:
</PARA>
<ProgramListing>
SELECT CURRENT_TIMESTAMP AS date_and_time;
date_and_time
----------------------
1998-03-31 07:41:21-08
</ProgramListing>
</REFSECT1>
<REFSECT1 ID="R1-SQL-CURRENT-TIMESTAMP-3">
<TITLE>
Compatibility
</TITLE>
<PARA>
</PARA>
<REFSECT2 ID="R2-SQL-CURRENT-TIMESTAMP-4">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
SQL92
</TITLE>
<PARA>
SQL92 specifies some additional capabilities for CURRENT_TIMESTAMP:
</PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
</TERM>
<LISTITEM>
<PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
<ReturnValue>CURRENT_TIMESTAMP [ (<replaceable class="parameter">scale</replaceable>) ]</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
The optional scale for CURRENT_TIMESTAMP, if specified, is an
unsigned integer representing the number of digits in the
optional seconds fraction of the time value represented
by the function.
</PARA>
</LISTITEM>
</VARLISTENTRY>
</VARIABLELIST>
</para>
</LISTITEM>
</VARLISTENTRY>
</VARIABLELIST>
</refsect2>
</refsect1>
</REFENTRY>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
sgml-parent-document:nil
sgml-default-dtd-file:"../reference.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:"/usr/lib/sgml/catalog"
sgml-local-ecat-files:nil
End:
-->