Add some links from data type chapter to section on literal constants.

This commit is contained in:
Peter Eisentraut 2001-01-26 22:04:22 +00:00
parent 6434ce65c4
commit 61737a7b47
2 changed files with 45 additions and 26 deletions

View File

@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/datatype.sgml,v 1.47 2001/01/13 18:34:51 petere Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/datatype.sgml,v 1.48 2001/01/26 22:04:22 petere Exp $
-->
<chapter id="datatype">
@ -335,8 +335,11 @@ $Header: /cvsroot/pgsql/doc/src/sgml/datatype.sgml,v 1.47 2001/01/13 18:34:51 pe
</para>
<para>
The numeric types have a full set of corresponding arithmetic operators and
functions. Refer to <xref linkend="functions"> for more information.
The syntax of constants for the numeric types is described in
<xref linkend="sql-syntax-constants">. The numeric types have a
full set of corresponding arithmetic operators and
functions. Refer to <xref linkend="functions"> for more
information.
</para>
<para>
@ -362,7 +365,7 @@ CREATE TABLE <replaceable class="parameter">tablename</replaceable> (<replaceabl
<programlisting>
CREATE SEQUENCE <replaceable class="parameter">tablename</replaceable>_<replaceable class="parameter">colname</replaceable>_seq;
CREATE TABLE <replaceable class="parameter">tablename</replaceable>
(<replaceable class="parameter">colname</replaceable> INT4 DEFAULT nextval('<replaceable class="parameter">tablename</replaceable>_<replaceable class="parameter">colname</replaceable>_seq');
(<replaceable class="parameter">colname</replaceable> integer DEFAULT nextval('<replaceable class="parameter">tablename</replaceable>_<replaceable class="parameter">colname</replaceable>_seq');
CREATE UNIQUE INDEX <replaceable class="parameter">tablename</replaceable>_<replaceable class="parameter">colname</replaceable>_key on <replaceable class="parameter">tablename</replaceable> (<replaceable class="parameter">colname</replaceable>);
</programlisting>
@ -394,20 +397,29 @@ CREATE TABLE <replaceable class="parameter">tablename</replaceable> (<replaceabl
<title>Monetary Type</title>
<note>
<title>Obsolete Type</title>
<title>Deprecated</title>
<para>
The <type>money</type> is now deprecated. Use <type>numeric</type>
or <type>decimal</type> instead. The money type may become a
locale-aware layer over the numeric type in a future release.
The <type>money</type> is now deprecated. Use
<type>numeric</type> or <type>decimal</type> instead, in
combination with the <function>to_char</function> function. The
money type may become a locale-aware layer over the
<type>numeric</type> type in a future release.
</para>
</note>
<para>
The <type>money</type> type supports US-style currency with
fixed decimal point representation.
If <productname>Postgres</productname> is compiled with USE_LOCALE
then the money type should use the monetary conventions defined for
<citetitle>locale(7)</citetitle>.
The <type>money</type> type stores U.S.-style currency with fixed
decimal point representation. If
<productname>Postgres</productname> is compiled with locale
support then the <type>money</type> type uses locale-specific
output formatting.
</para>
<para>
Input is accepted in a variety of formats, including integer and
floating point literals, as well as <quote>typical</quote>
currency formatting, such as <literal>'$1,000.00'</literal>.
Output is in the latter form.
</para>
<para>
@ -434,14 +446,9 @@ CREATE TABLE <replaceable class="parameter">tablename</replaceable> (<replaceabl
</tgroup>
</table>
</para>
<para>
<type>numeric</type>
will replace the money type, and should be preferred.
</para>
</sect1>
<sect1 id="datatype-character">
<title>Character Types</title>
@ -455,6 +462,12 @@ CREATE TABLE <replaceable class="parameter">tablename</replaceable> (<replaceabl
limit on the size of the field.
</para>
<para>
Refer to <xref linkend="sql-syntax-strings"> for information about
the syntax of string literals, and to <xref linkend="functions">
for information about available operators and functions.
</para>
<para>
<table tocentry="1">
<title><productname>Postgres</productname> Character Types</title>
@ -661,8 +674,14 @@ CREATE TABLE <replaceable class="parameter">tablename</replaceable> (<replaceabl
</para>
<para>
Remember that any date or time input needs to be enclosed into single quotes,
like text strings.
Remember that any date or time input needs to be enclosed into
single quotes, like text strings. Refer to <xref
linkend="sql-syntax-constants-generic"> for more information.
SQL requires the following syntax
<synopsis>
<replaceable>type</replaceable> '<replaceable>value</replaceable>'
</synopsis>
but <productname>Postgres</productname> is more flexible.
</para>
<sect3>
@ -1393,20 +1412,20 @@ January 8 04:05:06 1999 PST
<thead>
<row>
<entry>State</entry>
<entry>Output</entry>
<entry>Input</entry>
<entry>Output</entry>
</row>
</thead>
<tbody>
<row>
<entry>True</entry>
<entry>'t'</entry>
<entry>TRUE, 't', 'true', 'y', 'yes', '1'</entry>
<entry><literal>t</literal></entry>
</row>
<row>
<entry>False</entry>
<entry>'f'</entry>
<entry>FALSE, 'f', 'false', 'n', 'no', '0'</entry>
<entry><literal>f</literal></entry>
</row>
</tbody>
</tgroup>

View File

@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/syntax.sgml,v 1.37 2001/01/22 23:34:33 petere Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/syntax.sgml,v 1.38 2001/01/26 22:04:22 petere Exp $
-->
<chapter id="sql-syntax">
@ -304,7 +304,7 @@ REAL '1.23' -- string style
</para>
</sect3>
<sect3>
<sect3 id="sql-syntax-constants-generic">
<title>Constants of Other Types</title>
<para>