STTEXT_UPD_ACT 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 "Structure for multilang activity update" 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_STTEXT_UPD_ACT TYPE STTEXT_UPD_ACT.
The STTEXT_UPD_ACT table consists of various fields, each holding specific information or linking keys about Structure for multilang activity update data available in SAP. These include DESCRIPTION (Updated information in related user data field), NETWORK_NUMBER (Order Number), OBJECT_NUM (Object number)... 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. .