Ashish Karalkar wrote:
Hello List,
I am having list of tables , what I want to do is to
filter this list of table for a particular value of
its column, the column which i will be searching is
common accross all tables in list
any clues??
Something like
SELECT * FROM
(
SELECT col1,col2 FROM table1
UNION
SELECT col1,col2 FROM table2
UNION
SELECT col1,col2 FROM table3
) AS at
WHERE at.col1=3
if the cols are different names you would change
SELECT col1,col2
to SELECT col3 as col1,col2
If you are looking for the table that has the value you will want
something like -
SELECT c.relname,* FROM (
SELECT tableoid,col1,col2 FROM table1
UNION
SELECT tableoid,col1,col2 FROM table2
UNION
SELECT tableoid,col1,col2 FROM table3
) as at
left join pg_class c on at.tableoid=c.oid
WHERE at.col1=3
--
Shane Ambler
pgSQL@xxxxxxxxxxxxxxxx
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