You Do Need power plug adapter while traveling from Abu Dhabi to Denmark.

Here is Why You Need An Adapter

The outlet and plug type used in Denmark are C, E, F and K and in Abu Dhabi is G. This is how they look like.

Abu Dhabi

In Abu Dhabi, outlets of type G are in use.

Type G

Denmark

In Denmark, outlets of type C, E, F and K are in use.

Type C

Type E

Type F

Type K