Transact SQL: Get list of all databases in server

How to get as SQL query result the list of databases in SQL server. Notes of web-specialist
Since 2009
Figure 1. Saving changes is not permitted. The changes you have made require the following table to be dropped and re-created
Saving changes is not permitted in MS SQL Management studio

When you modify columns of a table in MS SQL management studio, you got the message "Saving changes is not...