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postgresql8.3-docs-8.3.6-2mdv2008.1.x86_64.rpm

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>8.2. Monetary Types</A
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><P
>    The <TT
CLASS="TYPE"
>money</TT
> type stores a currency amount with a fixed
    fractional precision; see <A
HREF="datatype-money.html#DATATYPE-MONEY-TABLE"
>Table 8-3</A
>.
    Input is accepted in a variety of formats, including integer and
    floating-point literals, as well as <SPAN
CLASS="QUOTE"
>"typical"</SPAN
>
    currency formatting, such as <TT
CLASS="LITERAL"
>'$1,000.00'</TT
>.
    Output is generally in the latter form but depends on the locale.
    Non-quoted numeric values can be converted to <TT
CLASS="TYPE"
>money</TT
> by
    casting the numeric value to <TT
CLASS="TYPE"
>text</TT
> and then
    <TT
CLASS="TYPE"
>money</TT
>:
</P><PRE
CLASS="PROGRAMLISTING"
>SELECT 1234::text::money;</PRE
><P>
    There is no simple way of doing the reverse in a locale-independent
    manner, namely casting a <TT
CLASS="TYPE"
>money</TT
> value to a numeric type.
    If you know the currency symbol and thousands separator you can use
    <CODE
CLASS="FUNCTION"
>regexp_replace()</CODE
>:
</P><PRE
CLASS="PROGRAMLISTING"
>SELECT regexp_replace('52093.89'::money::text, '[$,]', '', 'g')::numeric;</PRE
><P>

   </P
><P
>    Since the output of this data type is locale-sensitive, it may not
    work to load <TT
CLASS="TYPE"
>money</TT
> data into a database that has a different
    setting of <TT
CLASS="VARNAME"
>lc_monetary</TT
>.  To avoid problems, before
    restoring a dump make sure <TT
CLASS="VARNAME"
>lc_monetary</TT
> has the same or
    equivalent value as in the database that was dumped.
   </P
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><A
NAME="DATATYPE-MONEY-TABLE"
></A
><P
><B
>Table 8-3. Monetary Types</B
></P
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><TD
>money</TD
><TD
>8 bytes</TD
><TD
>currency amount</TD
><TD
>-92233720368547758.08 to +92233720368547758.07</TD
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