In FME training sessions the question always pops up: FME has so many different ways of joining data sources. But when should I use which option? This presentation will discuss a number of options to join/merge data from different sources.

1. Joining Data
Erik Bodewitz

2. FLIGHT PLAN
● Introduction
● Attribute Joins
● Spatial Joins

3. Data Joins in FME
So many different way of joining (or merging) data in FME exist, using
readers and transformers.
The question is often what to use and when.

4. Type of joins
● Attribute joins
● Attribute joins with database source
● Spatial joins

5. Attribute Joins

6. Using FeatureMerger transformer

7. Attribute Joins from Databases

8. Using SQLCreator transformer

9. Using SQLCreator transformer

10. Using Database Functionality
• Database Views
• Stored functions and Procedures
• Temporary tables

11. Using DatabaseJoiner transformer

12. Using DatabaseJoiner transformer
versus

13. Using SQLExecutor transformer

14. Spatial Joins

15. Using FeatureReader transformer

16. Using SpatialFilter transformer

17. Using SpatialRelator transformer

18. Using Overlayer transformers
• PointOnPointOverlayer
• PointOnLineOverlayer
• PointOnAreaOverlayer
• LineonLineOverlayer
• LineonAreaOverlayer
• AreaonAreaOverlayer
• PointonRasterExtractor

19. Using NeighborFinder transformer

20. 2017  2018

21. Performance test
Choose wisely
Check documentation
https://www.safe.com/transformers
More than one way

22. THANK YOU!
Erik Bodewitz
Erik.Bodewitz@Spatialbiz.com