STRUCR_WORK 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 "Object Structure for Project Reporting" 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_STRUCR_WORK TYPE STRUCR_WORK.
The STRUCR_WORK table consists of various fields, each holding specific information or linking keys about Object Structure for Project Reporting data available in SAP. These include EARBEH (Unit for work), PARBEI (Forecast work), PARBEH (Unit for work), VARBEI (Tentative work)... 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. .