Working with the geodatabase effectively using SQL - Esri
Working with the geodatabase effectively using SQL - Esri
Working with the geodatabase effectively using SQL - Esri
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How to fur<strong>the</strong>r improve performance <strong>with</strong><br />
relational operators<br />
• Secondary y filtering… g<br />
Question:<br />
“ Which parcels intersect <strong>the</strong> selected neighborhood?”<br />
SELECT COUNT(*)<br />
FROM parcels a, neighborhoods b<br />
WHERE b.name = ‘WESTWOOD’ AND<br />
st_intersects(a.shape,b.shape) = 1<br />
401 401,522 522 PParcels l<br />
52 Neighborhoods
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