0

This question already has an answer here:

I am sourcing our GIS data (ESRI ArcGIS) into a data warehouse for reporting. I am trying to join our sites in Table_A (with a point geometry column) to our markets in Table_B (with a polygon geometry column) by using the STContains() function. However, I found that these two columns are using different SRIDs (4326 and 4269 respectively) so the function will not work. I've done a lot of reading, and found that SQL Server has no transform function. So I used the .STAsText() function to store the text and STGeomFromText function to recreate the geometry, but this time matching the SRIDs. Now the STContains() function returns 1 that they do overlap as expected. My concern is I don't fully understand the impact of changing this SRID. By doing so, did I shift the point/polygon from where it should be on the map? Is what I'm doing a valid solution?

marked as duplicate by PolyGeo Jun 25 '18 at 22:19

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

0

I found this post, and found that while it does shift the coordinate system it is only about a meter's worth. This is good enough for us.

Is re-projection needed from SRID 4326 (WGS 84) to 4269 (NAD 83)SRID

I posted this question before my account was fully setup...not sure how to mark it as answered as the question is not tied to my account, but rather user83883.

Not the answer you're looking for? Browse other questions tagged or ask your own question.