CKI_CKMLHD 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 "Data Part CKMLHD" 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_CKMLHD TYPE CKI_CKMLHD.
The CKI_CKMLHD table consists of various fields, each holding specific information or linking keys about Data Part CKMLHD data available in SAP. These include XABRECH (Movements have Occurred Since the Last Price Determination), ABRECHDAT (Date of Last Successful Price Determination), XABRERR (Obsolete), ABRECHUHR (Time of Last Sucessful Price Determination)... 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. .