ABAP Keyword Documentation → ABAP - Reference → Obsolete Language Elements → Obsolete Processing of External Data → Obsolete Access to Data Clusters
FREE - no_id
Other versions: 7.31 | 7.40 | 7.54
If the addition ID is not specified in the statement
FREE MEMORY, then all
data clusters are deleted from the ABAP memory.
This short form is extremely error-prone and forbidden in classes, since a
FREE statement without ID affects all data clusters.