cheeks/practical-sql-2
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Chapter 15 updates

Browse Source
This commit is contained in:
anthonydb 2021-08-29 08:07:40 -04:00
parent 0e77052926
commit 56bb3be018
1 changed files with 1 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
Chapter_15/Chapter_15.sql
View File

@ -55,7 +55,7 @@ SELECT ST_SetSRID(ST_MakePoint(-74.9233606, 42.699992), 4326);
-- Listing 15-6: Functions specific to making LineStrings
SELECT ST_LineFromText('LINESTRING(-105.90 35.67,-105.91 35.67)', 4326);
SELECT ST_MakeLine(ST_MakePoint(-74.92, 42.69), ST_MakePoint(-74.12, 42.45));
SELECT ST_MakeLine(ST_MakePoint(-74.9, 42.7), ST_MakePoint(-74.1, 42.4));
-- Listing 15-7: Functions specific to making Polygons
@ -76,7 +76,6 @@ SELECT ST_MPolyFromText('MULTIPOLYGON((
-- ANALYZING FARMERS MARKETS DATA
-- https://catalog.data.gov/dataset/farmers-markets-geographic-data
-- https://www.ams.usda.gov/local-food-directories/farmersmarkets
@ -287,15 +286,6 @@ WHERE water.fullname = 'Santa Fe Riv'
AND roads.fullname IS NOT NULL
ORDER BY roads.fullname;
SELECT water.fullname AS waterway,
roads.rttyp,
roads.fullname AS road
FROM santafe_linearwater_2019 water JOIN santafe_roads_2019 roads
ON ST_Intersects(water.geom, roads.geom)
WHERE water.fullname = 'Santa Fe Riv'
AND roads.fullname IS NOT NULL
ORDER BY roads.fullname;
-- Listing 15-21: Using ST_Intersection() to show where roads cross the river
SELECT water.fullname AS waterway,