ESH_S_FU_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 "Data Transfer Structure for Real Time Indexing" 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_ESH_S_FU_DATA TYPE ESH_S_FU_DATA.
The ESH_S_FU_DATA table consists of various fields, each holding specific information or linking keys about Data Transfer Structure for Real Time Indexing data available in SAP. These include MANDT (Client), SW_COMP_ID (Software Component), OBJECT_TYPE_ID (Object Type), OBJECT_ID (General ID)... 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. .