Appending one geodatabase feature class with another.

If the schemas of the incoming features already match and you only want to merge those features in a new consolidated GDB, you do not need a FeatureMerger. Simply feed the output ports of like features from your FeatureReaders into the writer or downstream transformers to process them together. To go a step further, if the schemas are the same between the input datasets, a single FeatureReader can be used to read both using the "Select Multiple Folders/Files" option in the reader parameters.

Hi, thanks for your response.

I tried what you suggested ... "a single FeatureReader can be used to read both using the "Select Multiple Folders/Files" option".

This worked, for example a single feature class was written with all the "Usage1_ADMARE_a" areas and all the "Usage2_ADMARE_a" areas within it. (see pic01, in attached zip). Brilliant.

If I carry this concept through to attempt to merge the remaining common features (see pic02), are there any efficiencies I could do, so that I could avoid mapping every single group (grouped by their object name ADMARE, BCNCAR, BCNISD, etc).

If you it helps see also atttached a .gdb example, with some feature classes, not all. There's about 100 objects within each usage band, 6 bands in total.