Test whether named column exists in a  view

hi,
I need a test, for an if..then else clause to tell me whether there is a column named 'family' in a view.
Thanks in advance,
Jon

Hallo,
DECLARE
v_dummy number;
BEGIN
select 1 into v_dummy from dual
where exists (select null from dba_tab_columns
                    where table_name = 'YOUR_VIEW'
                    and column_name = 'FAMILY'
                    and owner = 'YOU');
EXCEPTION
WHEN NO_DATA_FOUND
THEN
   v_dummy:= 0;
END;
IF v_dummy = 1 THEN
dbms_output.put_line('Column exists');
ELSE
dbms_output.put_line('Column doesn't exist');
END IF;
Read about dba(all)_objects here
http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14237/statviews_2005.htm#i1583352
Regards
Dmytro
dbms_output corrected
Message was edited by:
        Dmytro Dekhtyaryuk                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

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                         <fo:region-body/>
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                 </fo:layout-master-set>
                 <fo:page-sequence master-reference="default-page">
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                         <fo:block>
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                                 <fo:block>
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                                 <fo:block>
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                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-column/>
                                         <fo:table-body>
                                             <fo:table-row background-color="green">
                                                 <fo:table-cell border-style="solid" border-width="1pt" border-color="gray" padding="2pt" background-repeat="repeat" display-align="center">
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                                                 </fo:table-cell>
                                                 <fo:table-cell border-style="solid" border-width="1pt" border-color="gray" padding="2pt" background-repeat="repeat" display-align="center">
                                                     <fo:block font-family="Times New Roman" font-size="9pt" color="#FFFFFF" background-color="#008000">
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                                                     <fo:block font-family="Times New Roman" font-size="9pt" color="#FFFFFF" background-color="#008000">
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                                                 </fo:table-cell>
                                                 <fo:table-cell border-style="solid" border-width="1pt" border-color="gray" padding="2pt" background-repeat="repeat" display-align="center">
                                                     <fo:block font-family="Times New Roman" font-size="9pt" color="#FFFFFF" background-color="#008000">
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                                                 <fo:table-cell border-style="solid" border-width="1pt" border-color="gray" padding="2pt" background-repeat="repeat" display-align="center">
                                                     <fo:block font-family="Times New Roman" font-size="9pt" color="#FFFFFF" background-color="#008000">
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                                                 </fo:table-cell>
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                                                 </fo:table-cell>
                                                 <fo:table-cell border-style="solid" border-width="1pt" border-color="gray" padding="2pt" background-repeat="repeat" display-align="center">
                                                     <fo:block font-family="Times New Roman" font-size="9pt" color="#FFFFFF" background-color="#008000">
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                                                 </fo:table-cell>
                                                 <fo:table-cell border-style="solid" border-width="1pt" border-color="gray" padding="2pt" background-repeat="repeat" display-align="center">
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                                                 </fo:table-cell>
                                                 <fo:table-cell border-style="solid" border-width="1pt" border-color="gray" padding="2pt" background-repeat="repeat" display-align="center">
                                                     <fo:block font-family="Times New Roman" font-size="9pt" color="#FFFFFF" background-color="#008000">
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                                                 <fo:table-cell border-style="solid" border-width="1pt" border-color="gray" padding="2pt" background-repeat="repeat" display-align="center">
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