BAPISCEDAT 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 "SCE Knowledge Base in Generic Format" 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_BAPISCEDAT TYPE BAPISCEDAT.
The BAPISCEDAT table consists of various fields, each holding specific information or linking keys about SCE Knowledge Base in Generic Format data available in SAP. These include BUILD (Build number of runtime version), SEGMNO (Counter for SCE knowledge base table/segment), BLKCNT (Counter for datasets in KB segment (table)), SEGMNAME (Name of knowledge base segment (table))... 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. .