SAP ABAP ASJSON ABAP TYPES TABLE documentation, setup help and example usage

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asJSON - Mapping of Internal Tables
Internal tables are represented in asJSON as
JSON arrays . The rows of the internal table are represented in their canonical representation as the components of the array. All table categories are allowed. Serializations do not pass any information about the table category to the JSON data. If the target field of a deserialization is a sorted table , the rows are sorted accordingly.

Notes

An internal table that does not have an associated JSON object component in deserializations retains its previous value. If an empty array is assigned to an internal table, it is set to its type-specific initial value (i.e. emptied). To initialize the internal table in either case, the transformation option

clear with the value "all" can be used.

Unlike in the asXML representation

of internal tables, asJSON does not require a name like
item for the table rows.

Example
See asJSON for Internal Tables .