SAP to Oracle date conversion

hi,

In our SLT system we are replictaing adat from SAP ECC and sending  it to Oracle DB. We have requirment to add time stamp field to our table and send to oracle as an oracle data type format.

So we need oracle to store YYYYMMDDHH:MM:SS in oracle format, we have been trying to code via FM in

call function 'Z_TIMESTAMP' importing timestamp = e_zztimstp.

Code of FM Z_TIMESTAMP-

DATA: tz    TYPE ttzz-tzone,

        timestamp2 TYPE timestamp,

        date TYPE dats,

        time TYPE tims.



  tz = 'GMTUK'.

  GET TIME STAMP FIELD timestamp.

in mapping value tab have maintainerd below code..

"ZZTIMSTP" TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP

can anyone advice if you have implemented this..

thanks

Nilesh