error: no; dataset in memory has changed since last saved
Sophia Edwards
Published Jan 06, 2026
error: no; dataset in memory has changed since last saved
use {filename} no; dataset in memory has changed since last saved I am just beginning to learn Stata and now facing the above issue. I am trying to open >2 different datafiles in one do-file and the error appeared. Is there a way to solve this? I have saved both datasets in the same working directory so the path should be right.
1 Answer
You need to clear before you can use a new dataset that hasn't been saved.
If the datasets need to be joined, that is a task for append or merge. If they are separate, you can't open them at the same time. You could open two instances of Stata.
So, a deeper answer depends on what the datasets are and why you want to look at them at the same time.
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Beatrice Clogston
Update: 2023-11-17