CKI_PER_ML 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 "Fields for period determination" 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_CKI_PER_ML TYPE CKI_PER_ML.
The CKI_PER_ML table consists of various fields, each holding specific information or linking keys about Fields for period determination data available in SAP. These include POPER (Posting period when material ledger was last closed), BDATJ (Posting Year of the Last Closing)... 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. .
