How to use the DELETE command to delete a column or row.
CQL provides the DELETE command to delete a column or row. Deleted values are removed completely by the first compaction following deletion.
Delete the values of the column lastname from the table
cqlsh> DELETE lastname FROM cycling.cyclist_name WHERE id = c7fceba0-c141-4207-9494-a29f9809de6f;
Delete entire row for a particular race from the table
cqlsh> DELETE FROM cycling.calendar WHERE race_id = 200;