SQL SERVER 2005中如何实现excel Correl相关行函数

AvgRSSIInstant_M_1 AvgRSSIInstant_D_1
-101.62 -114.64
-102.365 -114.62
-102.125 -114.505
-102.095 -114.84
-102.515 -114.745
-101.26 -114.79
-101.245 -114.93
-101.865 -114.3
-102.26 -114.9
-102.345 -115.085
-101.805 -114.195
-100.46 -114.72
-101.165 -115.085
-102.385 -115.005
-101.795 -114.87
-101.995 -115.105我想求上面两个数据的相关性，在Excel有个Correl函数，在sql中找不到，如何实现，非常感谢