CMS_STR_AST_LKY 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 "Link to CMS_AST Table" 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_CMS_STR_AST_LKY TYPE CMS_STR_AST_LKY.
The CMS_STR_AST_LKY table consists of various fields, each holding specific information or linking keys about Link to CMS_AST Table data available in SAP. These include AST_GUID (GUID for Table CMS_AST)... 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. .