我想获得两列（均为 TT_TIMESTAMP(26,6)）之间的差异，select timestamp1 - timestamp2 as diff from table;但出现此错误：An interval data type must be specified for a datetime arithmetic result
有任何想法吗？
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In T-SQL you would need to provide an internal type (year,month,day ect) that would identify the specific element that you are wanting to se the differance in.
A formula like the following should give you the differance in days for example in T-SQL:
DATEDIFF(day, timestamp1, timestamp2) AS DateDiff
W3 Schools has a good indicator of the various options you can use
于 2022-01-27T15:36:12.423 回答