SAP Function Module search on DD_TT
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DD_TTHD_SET_PUT - DD: Interface for set-oriented writing of table type header
DD_TTYP_ACT - DD: Table type activator for single processing
DD_TTYP_ACTIVATE - DD: Online activator for table types
DD_TTYP_INNER_ACT - DD: Inner activat. prog. table types w/o reading sources, mass proc.
DD_TTYP_SET_ACT - DD: Table type activ. prog. for mass processing program
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