Full-stack dev quiz question #61/span>

You may create a primary key in a few different ways using Liquibase. Do you know which Liquibase changes support autorollback and which don't? Check sixty first question of full-stack dev quiz to test your knowledge.

Full-stack dev quiz question #60/span>

Spring REST controller may send a serialized object, raw data or a file. Do you know how to define a file name in that third option? Check sixtieth question of full-stack dev quiz to verify if you know the answer.

Full-stack dev quiz question #59

Null values in relational databases are special in many ways. Do two nulls violate uniqueness? Check fifty ninth question of full-stack dev quiz to check if you know how to play with null values.

Full-stack dev quiz question #58

Liquibase preconditions are more advanced elements of changeset. However, they may help when there are discrepancies between databases on different environments. Check fifty eighth question of full-stack dev quiz to check if you understand preconditions.