This is the 20th day of my participation in the August More Text Challenge

1. Multiple layers with the same data need to be merged into one layer as follows:

Step 3.

Toolbox — Data management tools — General — merge/append

Results 3.

4. The difference between merge and append

Can realize data merge into a file function

Merge: Regenerate a new file

Append: Appends data to the selected file