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ABAPCREATE_DATA_KEYDEF - CREATE DATA KEYDEF

ABAPCREATE_DATA_KEYDEF - CREATE DATA KEYDEF

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KEYDEF - Defining a Table Key in the CREATE DATA Statement

Alternatives:

1. KEY k1 ... kn

2. KEY (keytab)

3. DEFAULT KEY

Effect

You can declare the names of the key components either statically or dynamically as the contents of an internal table. The same rules apply as when you define an internal table using DATA. In particular, you cannot declare duplicate key components or key components that overlap. If you declared the line type dynamically, breakind these rules causes a runtime error.

Alternative 1

KEY k1 ... kn


Effect

The componentsk1, ..., kn are used as the key for the internal table in the order in which they were declared. Invalid component names cause a runtime error.

Alternative 2

KEY (keytab)


Effect

The system gets the key components from the internal table keytab at runtime. keytab must be an internal table with a character-type line type.

Alternative 3

DEFAULT KEY


Effect

The system uses the standard key as the key for the internal table.






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