BAPI_TS_APPROVAL_DETAIL 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 "BAPI GET_DETAIL: Fields for Approval of a Phase" 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_BAPI_TS_APPROVAL_DETAIL TYPE BAPI_TS_APPROVAL_DETAIL.
The BAPI_TS_APPROVAL_DETAIL table consists of various fields, each holding specific information or linking keys about BAPI GET_DETAIL: Fields for Approval of a Phase data available in SAP. These include VERSION (Approval Version), DECISION (Approval/Individual Approval Decision), DECISION_TEXT (Approval/Individual Approval Decision), DECIDER_NAME (Name of Person Who Made the Approval Decision)... 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. .