CO23D_SELECT 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 "Actual Postings: Selection Fields for Screens" 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_CO23D_SELECT TYPE CO23D_SELECT.
The CO23D_SELECT table consists of various fields, each holding specific information or linking keys about Actual Postings: Selection Fields for Screens data available in SAP. These include XOTHER_DAY (Indicator: Other Date)... 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. .