FMBCS_S_LINES_STD 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 "Standard fields for FMBL (non-key fields contained in FMBL)" 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_FMBCS_S_LINES_STD TYPE FMBCS_S_LINES_STD.
The FMBCS_S_LINES_STD table consists of various fields, each holding specific information or linking keys about Standard fields for FMBL (non-key fields contained in FMBL) data available in SAP. These include CTEM_CATEGORY (Commitment Item Category), FISCYEAR (Fiscal Year), CEFFYEAR (Year of Cash Effectivity), FUND (Fund)... 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. .