CMS_STR_SEC_ACC_ADD_DATA_SCR 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 "Additional data of securities positions" 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_SEC_ACC_ADD_DATA_SCR TYPE CMS_STR_SEC_ACC_ADD_DATA_SCR.
The CMS_STR_SEC_ACC_ADD_DATA_SCR table consists of various fields, each holding specific information or linking keys about Additional data of securities positions data available in SAP. These include ISIN (Unique ID for a Position in a Securities Account), SHORT_NAME (Short name of securities ISIN), SEC_POS_TYPE (Securities Classification Type), ISSUE_SOURCE (Name of Source which has Issued the Securities Position)... 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. .