I’m documenting a project DB and I’m producing diagrams and comments only. I understand that in a full data modeling exercise I should have the ability to create new entities, modify attributes, etc. I wish that my entities can be made read-only though, except for the comments. I found on multiple occasions that my wrong mouse moves created new relationships along with corresponding FK attributes.
Is there any way to make my entities read-only, or, at least stop myself from creating new relationships?