SQL Guide : Data types : Timestamp data type
  
Timestamp data type
Data type
Size
Precision
Scale
Length
Display size
TIMESTAMP
N/A
19 [1]
9
16 [2]
19/29 [3]
[1] The number of characters in the “yyyy-mm-dd hh:mm:ss.fffffffff” format
[2] The size of the TIMESTAMP_STRUCT structure
[3] Size is 29 with a decimal fraction part
See also
Data types