When connecting to SAP Adaptive Server 15.5 and later, SAP jConnect transfers data using the bigdatetime and bigtime datatypes even if the receiving SAP Adaptive Server columns are defined as datetime and time.
This means that SAP Adaptive Server may silently truncate the values from SAP jConnect to fit SAP Adaptive Server columns. For example, a bigtime value of 23:59:59.999999 is saved as 23:59:59.996 in an Adaptive Server column with datatype time.
When connecting to SAP Adaptive Server 15.0.x and earlier, SAP jConnect for JDBC transfers data using the datetime and time datatypes.