ESH_S_QP_BACK 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 "Recognition back entry" 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_QP_BACK TYPE ESH_S_QP_BACK.
The ESH_S_QP_BACK table consists of various fields, each holding specific information or linking keys about Recognition back entry data available in SAP. These include RULE_IDX (Row Index of Internal Tables), CORE_FLAG (), B (), SPAN_START (Span start)... 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. .