predefined data type

Data type that the ABAP runtime environment makes available to an ABAP program. The predefined elementarary data types are: b, c, d, f, i, n, p, s, string, t, x and xstring.
There are also generic data types and ABAP Dictionary data types. The names of the elementary and generic predefined ABAP types are a subset of reserved names (apart from b and s, which cannot be used directly in a program).

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