TKALV_TAB 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 "Substructure for TKALV Data Dictionary References" 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_TKALV_TAB TYPE TKALV_TAB.
The TKALV_TAB table consists of various fields, each holding specific information or linking keys about Substructure for TKALV Data Dictionary References data available in SAP. These include PRIM_DBTAB (Primary Table Name), SEK_DBTAB (Secondary Table Name)... 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. .