Thread: columns refered to in view

I have created a view with this query:

CREATE VIEW testview AS SELECT table.column AS col1, table2.column AS
coll2 FROM table, table2;

Later on, i want to get the table and column name that a field refers
to in this view. In other words i want to get the table and column that
the column 'col1' refers to. Im looking for 'table.column'. How can i
get this information?

thanks!


--
Alexander Cohen
http://www.toomuchspace.com
(819) 348-9237
(819) 432-3443

On Wednesday 14 April 2004 14:59, Alexander Cohen wrote:
> I have created a view with this query:
>
> CREATE VIEW testview AS SELECT table.column AS col1, table2.column AS
> coll2 FROM table, table2;
>
> Later on, i want to get the table and column name that a field refers
> to in this view. In other words i want to get the table and column that
> the column 'col1' refers to. Im looking for 'table.column'. How can i
> get this information?

If you're using 7.4, you can look in the information-schema:

SELECT * FROM information_schema.view_column_usage
WHERE view_name = 'foo_view';

This only lists columns that "show through" not calculated columns (AFAIK).
--
  Richard Huxton
  Archonet Ltd