CMP_WCDITM_DATAWA 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 "WCM: Data Comparison" 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_CMP_WCDITM_DATAWA TYPE CMP_WCDITM_DATAWA.
The CMP_WCDITM_DATAWA table consists of various fields, each holding specific information or linking keys about WCM: Data Comparison data available in SAP. These include REFOBJ (Template (Object Number)), SEQ (Item), CCTYP (Item Category), CCOBJ (Technical Object)... 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. .