SQL Server : datetime comparison ignoring few milliseconds -


this question has answer here:

i noticed 2 datetimes considered equal if 1 

2010-12-31 15:13:48.000

and other 

2010-12-31 15:13:48.001.

i thought in beginning rounding or down nearest full seconds turned out 

2010-12-31 15:13:48.002

registers difference correctly.

any idea why happens?

the datetime data type accurate 3 milliseconds (0.0033 seconds), results make sense. values rounded 0.000, 0.003, , 0.007. so, first example rounded to: "2010-12-31 15:13:48.000" , second "2010-12-31 15:13:48.003".

you can read in documentation.


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