Contradiction with Proverbs 16:7
Daniel 8:23 describes an evil person prospering, while Proverbs 16:7 suggests enemies are at peace with a righteous person.
Proverbs 16:7: When a man's ways please the LORD, he maketh even his enemies to be at peace with him.
Contradiction with Psalm 37:35-36
Daniel 8:23 speaks of the rise of a powerful figure, while these verses indicate that the wicked will pass away and not endure.
Psalm 37:35-36: I have seen the wicked in great power, and spreading himself like a green bay tree. [a green...: or, a green tree that groweth in his own soil]
Contradiction with Proverbs 10:27
Daniel 8:23 implies success for a king of fierce countenance, whereas Proverbs 10:27 states the years of the wicked shall be shortened.
Proverbs 10:27: The fear of the LORD prolongeth days: but the years of the wicked shall be shortened. [prolongeth: Heb. addeth]
Contradiction with Job 20:5
Daniel 8:23 talks about the rise of a wicked character nearing an end, while Job emphasizes the brief joy of the wicked.
Job 20:5: That the triumphing of the wicked [is] short, and the joy of the hypocrite [but] for a moment? [short: Heb. from near]