Select data from sap tables DCTBH
Display SAP table details
DCTBHDCHG - DD: Changes in table header
DCTBHDCHK - Control String for Table Checks (Header)
DCTBHDCHKE - Contains target entries of DCTBFDCHK
DCTBHDEXTCHK - DD: Control Structure for Extensibility TABL Checks
DCTBHDGET - Control Structure for DD_GET_TABL_HEADER
Return Table index