Comparing Two Geospatial Series with Python
Learn how to use Python and pandas to compare two series of geospatial data and find the matches.
2021-03-23
4,919 reads
Learn how to use Python and pandas to compare two series of geospatial data and find the matches.
2021-03-23
4,919 reads
2020-04-14
552 reads
2017-05-01
864 reads
2017-03-31
929 reads
2016-03-09
1,150 reads
Spatial Data in SQL Server has special indexing because it has to perform specialised functions. It is able, for example, to break down an indexed space into a grid hierarchy by using a technique called tessellation. This is a rules-based system that, when you compare a shape to an index, works out how many cells in the the grid hierarchy are touched by that shape , and how deep down the grid hierarchy to search. There is powerful magic in Spatial Indexes as Surenda and Roy explain.
2015-04-15
7,242 reads
More and more applications require the handling of geospatial data. It is easy to store spatial data, but it takes rather more thought to retrieve and manipulate it. Tasks like searching neighborhoods, and calculating distances between points is often required from databases. But how do you start? Roy and Surenda take you through the basics.
2015-04-06
9,426 reads
2014-09-19
1,968 reads
Spatial Point Data queries require particular tuning efforts to enhance performance and improve overall application through put. SQL Server 2012 introduces a few key new features and improvements to assist you in that goal.
2012-04-27
2,152 reads
2012-02-03
2,001 reads
By Steve Jones
vicarous – adj. curious to know what someone else would do if they were...
Say we have a database that we want to migrate a copy of into...
We are trying to get apps and users off of using SQL accounts to...
Hi I have this view to check if a job is running: SELECT...
All, if you are like me and do not care for the built-in color...
Certain internal SQL Server actions cause internal checkpoints. Which of these actions does not cause an internal checkpoint?
See possible answers