TFC_TEXTPOOL 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 "Like textpool but with spras" 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_TFC_TEXTPOOL TYPE TFC_TEXTPOOL.
The TFC_TEXTPOOL table consists of various fields, each holding specific information or linking keys about Like textpool but with spras data available in SAP. These include ID (ABAP/4 text pool ID (selection text/numbered text)), KEY (Text element key (number/selection name)), ENTRY (Language-dependent text in ABAP/4 text pool), LENGTH (Reserved length for text (with language reserve))... 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. .