RCJ_DATES_BASIC 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 "Dates Overview Basic" 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_RCJ_DATES_BASIC TYPE RCJ_DATES_BASIC.
The RCJ_DATES_BASIC table consists of various fields, each holding specific information or linking keys about Dates Overview Basic data available in SAP. These include OBJECT_ID (PS Time Planning, ALV List: Object ID), OBJECT_NAME (PS: Short description (1st text line)), BASIC_START (WBS element: Basic start date), EARLY_START (Earliest scheduled start date (Basic))... 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. .