COERR_CHECK 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 "Controlling Cockpit: Data to Be Checked" 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_COERR_CHECK TYPE COERR_CHECK.
The COERR_CHECK table consists of various fields, each holding specific information or linking keys about Controlling Cockpit: Data to Be Checked data available in SAP. These include TYPE (Application Log: Callback: Type (Ext. Perform, FM, etc.)), REPID (Application Log: Callback: Program name), PRGNAME (Application Log: Callback: Routine name), PARAM ()... 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. .