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