SQL COUNT overflow

Question

Here is my query:

SELECT COUNT(*) FROM Similarities WHERE T1Similarity = 0 OR T2Similarity = 0

Here is the result:

Msg 8115, L

Answer 1

  SELECT COUNT_BIG(*) FROM Similarities WHERE T1Similarity = 0 OR T2Similarity = 0

Answer 2

Use COUNT_BIG

SELECT COUNT_BIG(*) FROM Similarities WHERE T1Similarity = 0 OR T2Similarity = 0