CKI_WP1_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 "Currency fields MBEW (curr. month)" 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_WP1_ML TYPE CKI_WP1_ML.
The CKI_WP1_ML table consists of various fields, each holding specific information or linking keys about Currency fields MBEW (curr. month) data available in SAP. These include VERPR (Periodic unit price), SALK3 (Value of total valuated stock), SALKV (Value based on the periodic unit price (only with pr.ctrl S)), PEINH (Price unit)... 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. .