2015 FOSS4G Track: The Spatial Database - Lessons from the Enterprise and PostGIS by Matthew Baker

Matthew BakerDenver Public Schools

The Spatial DatabaseLessons from the Enterprise...and PostGIS

--View for "reverse" scatterplot--

create view Oct14ScatterES as (Select cast(row_number() over(order by O.ressch asc) as int) as OBJECTID,cast(O.ResSch as int) as ResSch,O.SchNum,O.Students,sch.ABBREVIATION,sch.shapefrom (select oct.RESSCH as ResSch,oct.schNum as SchNum,count(oct.STUDENTNUMBER) as Students FROM [dpsdata].[OctoberCount_Archive] as Oct where oct.RESSCH <> '0' and oct.adjGradeCrd in ('EC','00', '01', '02', '03', '04', '05') and oct.Year = '2014' group by ressch, schNum) as O join [dpsdata].[Schools_Current] as sch on sch.SCHNUM = O.SchNum)

SELECT fz.GEOID_BG , fz.SBRegion , count (case when oct.year = '2009' then 1 end) as [2009] , count (case when oct.Year = '2010' then 1 end) as [2010] , count (case when oct.Year = '2011' then 1 end) as [2011] , count (case when oct.Year = '2012' then 1 end) as [2012] , count (case when oct.Year = '2013' then 1 end) as [2013] , count (case when oct.Year = '2014' then 1 end) as [2014] FROM [dpsdata].[OctoberCount_Archive] as oct join dpsdata.ForecastZones as fz on oct.shape.STIntersects(fz.shape) = 1 where oct.Year >= '2009' and oct.langbkgrd in ('spa', '1380')

group by fz.GEOID_BG, fz.SBRegion

Student Enterprise GIS

ArcSDE

42 Tables

ArcSDE Back End (SQL Server) > 100 'SDE' Tables

Versioning

- adds 3 more tables per versioned feature class

Spatial isn't special.*

Matthew BakerDenver Public Schools

@mapBaker

[email protected]

Thank you!

Matthew BakerDenver Public Schools

The Spatial DatabaseLessons from the Enterprise...and PostGIS

Matthew Baker is the SR. GIS Analyst at Denver Public Schools

--View for "reverse" scatterplot--

create view Oct14ScatterES as (Select cast(row_number() over(order by O.ressch asc) as int) as OBJECTID,cast(O.ResSch as int) as ResSch,O.SchNum,O.Students,sch.ABBREVIATION,sch.shapefrom (select oct.RESSCH as ResSch,oct.schNum as SchNum,count(oct.STUDENTNUMBER) as Students FROM [dpsdata].[OctoberCount_Archive] as Oct where oct.RESSCH <> '0' and oct.adjGradeCrd in ('EC','00', '01', '02', '03', '04', '05') and oct.Year = '2014' group by ressch, schNum) as O join [dpsdata].[Schools_Current] as sch on sch.SCHNUM = O.SchNum)

SELECT fz.GEOID_BG , fz.SBRegion , count (case when oct.year = '2009' then 1 end) as [2009] , count (case when oct.Year = '2010' then 1 end) as [2010] , count (case when oct.Year = '2011' then 1 end) as [2011] , count (case when oct.Year = '2012' then 1 end) as [2012] , count (case when oct.Year = '2013' then 1 end) as [2013] , count (case when oct.Year = '2014' then 1 end) as [2014] FROM [dpsdata].[OctoberCount_Archive] as oct join dpsdata.ForecastZones as fz on oct.shape.STIntersects(fz.shape) = 1 where oct.Year >= '2009' and oct.langbkgrd in ('spa', '1380')

group by fz.GEOID_BG, fz.SBRegion

Student Enterprise GIS

More details regarding this report-The user can select a distance bandThe user also selects whether or not to include students with multiple address or- only show

students with multiple addressesThe screenshot below shows students with addresses in the 5.1-10 mile band AND their

secondary addresses in other bands.   These are shown in yellow.  The rest of the school population is in green.

What you don’t see- a grid of all the students fitting the conditions selected in the dropdown.  The grid provides additional information such as address, attendance, exact distance.  It could also include behavior, etc.  That data is available on the map with a ‘hover’ so that you can use the mouse to ‘hover’ over a dot and get all the information about that student.

ArcSDE

42 Tables

ArcSDE Back End (SQL Server) > 100 'SDE' Tables

Versioning

- adds 3 more tables per versioned feature class

Spatial isn't special.*

Matthew BakerDenver Public Schools

@mapBaker

[email protected]

Thank you!