Question on Database schema has more context

Author: Martini Arialdo

README.md

@@ -120,7 +120,7 @@ Sooner or later I will complete it with the relative answers. Feel free to contr
 * How would you migrate an application from a database to another, for example from MySQL to PostgreSQL? If you had to manage that project, which issues would you expect to face?
 * Why databases treat null as a so special case? For example, why in SQL ```SELECT * FROM table WHERE field = null``` does not match records with null ``field``?
 * ACID is an acronym that refers to Atomicity, Consistency, Isolation and Durability, 4 properties guaranteed by a database transaction in most of the database engines. What do you know about this topic? Would you like to elaborate?
-* How would you manage database schema migrations?
+* How would you manage database schema migrations, that is, how would you automate the changes a database schema is affected to, as the application evolve, version after version?
 * How is Lazy Loading achieved? When is it useful? What are its pitfalls?
 * The so called "N + 1 problem" is an issue that occurs when the code needs to load the children of a parent-child relationship with a ORMs that have lazy-loading enabled, and that therefore issue a query for the parent record, and then one query for each child record. How to fix it?
 * How would you find the most expensive queries in an application?