I1NTTSK_UPD_STRUC 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 "e1nttsk_upd segment + segment number" 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_I1NTTSK_UPD_STRUC TYPE I1NTTSK_UPD_STRUC.
The I1NTTSK_UPD_STRUC table consists of various fields, each holding specific information or linking keys about e1nttsk_upd segment + segment number data available in SAP. These include SEGNUM (Number of SAP segment)... 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. .