相关疑难解决方法(0)

我在~7000行T-SQL存储过程中有我的业务逻辑,其中大多数都有下一个JOIN语法:

SELECT A.A, B.B, C.C
FROM aaa AS A, bbb AS B, ccc AS C
WHERE
    A.B = B.ID
AND B.C = C.ID
AND C.ID = @param

如果我用这个替换这样的查询,我会获得性能增长:

SELECT A.A, B.B, C.C
FROM aaa AS A
JOIN bbb AS B
   ON A.B = B.ID
JOIN ccc AS C
   ON B.C = C.ID
   AND C.ID = @param

或者他们是一样的？