Where to find table field definitions in mass? The one I see in F1 in se16

Hi all, I'm wondering if tis imaginable to find the root array oregon immoderate documentation that stores the definitions of array fields, one mean the agelong definitions that is disposable successful F1.

EXAMPLE: TABLE: VBAP, FIELD: POSNR, Definition: The fig that uniquely identifies the point successful the income document.

I'm modeling the information from SAP to stock to information warehouse and concern expects the definitions of each tract to beryllium stored, and checking it successful F1 for each tract separately is highly clip consuming and frustrating tbh..