CKI_EKLS 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 "SC Components History" 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_EKLS TYPE CKI_EKLS.
The CKI_EKLS table consists of various fields, each holding specific information or linking keys about SC Components History data available in SAP. These include EBELN (Purchasing Document Number), EBELP (Item Number of Purchasing Document), LFBJA (Fiscal Year of a Reference Document), LFBNR (Document No. of a Reference Document)... 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. .