SVVSC_DOC_ITEM_DATA is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Scheduling Structure for Posting of Single Documents" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_SVVSC_DOC_ITEM_DATA TYPE SVVSC_DOC_ITEM_DATA.
The SVVSC_DOC_ITEM_DATA table consists of various fields, each holding specific information or linking keys about Scheduling Structure for Posting of Single Documents data available in SAP. These include EMBVT (Bank Details ID of Payee), EMADR (Address number), EMCCID (Payment Card ID for Payments), PYMET (Payment Method)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .