After hitting call db.schema()
in a neo4j command shell in my browser, I got the graph representation of the schema.
After hitting on one of the nodes, generally, there are set of buttons(as shown in the picture below), By mistake I hit the cross button.
Doe this modify the data in the database? If yes How do I undo this? Any help is appreciated.
No, the graphical view is only for display purposes currently, all you did was remove the node from the visualization. Your data hasn't been modified.