PSPROJ_CONTEXT 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 "Context for Current Project" 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_PSPROJ_CONTEXT TYPE PSPROJ_CONTEXT.
The PSPROJ_CONTEXT table consists of various fields, each holding specific information or linking keys about Context for Current Project data available in SAP. These include EI_ID (Work Breakdown Structure Element (WBS Element)), FLG_OUTDF (Selection flag), FLG_INPDF (Selection flag), FLG_STANDARD_PSP (Selection flag)... 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. .