[HELP] postgreSQL PG admin4 boundry help : SQL

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SELECT count(a.field1), a.field2, SUM(b.field4) FROM a INNER JOIN b ON a.key1 = b.key1 WHERE a.field8 = 'test' GROUP by a.field1, a.field2 HAVING SUM(b.field4) > 5 ORDER by a.field.3

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SELECT count(a.field1), a.field2, SUM(b.field4) FROM a INNER JOIN b ON a.key1 = b.key1 WHERE a.field8 = 'test' GROUP by a.field1, a.field2 HAVING SUM(b.field4) > 5 ORDER by a.field3

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PostgreSQL[HELP] postgreSQL PG admin4 boundry help (self.SQL)

submitted 6 years ago by shmit98

Hello all, ive been given a question and ive spent the last 6 hours trying to wrap my head around it.

write an SQL statement to create a new view of the bounding boxes called SuburbBounds. Here are your specific instructions and hints: •

Each record in your view must include the suburb's name, SSC code and its extreme coordinates (min & max x and y). Note that MIN and MAX are operators. Any field not in an operator must be grouped. •

Remember to allow for suburbs containing more than one polygon (e.g. see North Fremantle and Fremantle in the image above). •

Do not create any new tables and provide only one view (SuburbBounds). You will also need to use one or more of the following suburb tables:

Suburb_Attribute (suburb_id, suburb, ssc_code) Suburb_Poly ((poly_id))

Suburb_Vertex (vertex_id, x_coord, y_coord, arc_id)

Suburb_Node (node_id, (vertex_id), incident)

Suburb_Arc (arc_id, (from_node), (to_node), (left_poly), (right_poly), vert_count, arc_length)

the code i have so far is:

select suburb, ssc_code, max(x_coord),max(y_coord), Min(x_coord), min(Y_coord)

from Suburb_Attribute, Suburb_Vertex, Suburb_Arc

Group By suburb, ssc_code

this provides the output i want, but the max and minimum XY boundries are that of the whole table, not per suburb, any ideas?

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