my MongoDB compass version 1.21.2
This is wrong version. The schema tab is not available in the community edition. Search this forum, you will find instructions to install stable entreprise edition.
hi sir @Shubham_Ranjan , i have already stored some data and i do not want to lose them
will the download or upgrade to 1.21.2(stable) cause loss of data?
Data doesn’t get stored in Compass. In your case, most likely it would be an Atlas cluster or a locally running