FKK_PDC_DB_UPDATE is a standard SAP function module that performs functionality. This is available within standard R/3 SAP systems depending on version and release level.
Below are the pattern details for this FM showing its interface including any import, export and tables parameters. There is also a list of Exceptions and for your convenience any standard documentation available. All this information and more can also be viewed if you enter the function module name FKK_PDC_DB_UPDATE into the relevant SAP transaction such as SE37 or SE80.
CALL FUNCTION 'FKK_PDC_DB_UPDATE' "
EXPORTING
it_pdc = " tt_dfkkpdc
* it_pdcs = " tt_dfkkpdcs
* it_pdce = " tt_dfkkpdce
* it_pdc_rid = " tt_dfkkpdc_rid
* it_pdcv = " tt_dfkkpdcv
* it_zp_upd = " dfkkzp_t
. " FKK_PDC_DB_UPDATE