On 06/13/2012 03:28 PM, Moritz Lennert wrote:
On 12/06/12 23:21, Rich Shepard wrote:
Two tables: 'sites' contains the ID and
geographic coordinates;
'waterchem' contains the ID and water chemistry data. The latter
table is a
On Wed, 13 Jun 2012, Moritz Lennert wrote:
Just use everything after the first WHERE as argument for the 'where'
parameter of d.vect (or any other module with a where parameter).
Moritz,
Thank you.
Rich
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On 12/06/12 23:21, Rich Shepard wrote:
Two tables: 'sites' contains the ID and geographic coordinates;
'waterchem' contains the ID and water chemistry data. The latter table is a
sub-set of the former.
I want to display only those sites for which chemistry data are available.
In postgres I wri
Two tables: 'sites' contains the ID and geographic coordinates;
'waterchem' contains the ID and water chemistry data. The latter table is a
sub-set of the former.
I want to display only those sites for which chemistry data are available.
In postgres I write,
SELECT DISTINCT(w.site) F
