docs-v2/content/influxdb/v2/query-data/common-queries/operate-on-columns.md

title	description	influxdb/v2/tags	aliases	menu	weight	source
Operate on columns	Find and count unique values, recalculate the `_value` column, and use values to calculate a new column.	queries	/influxdb/v2/query-data/common-queries/count_unique_values_for_column/ /influxdb/v2/query-data/common-queries/recalculate_value_column/ /influxdb/v2/query-data/common-queries/calculate_new_column/	influxdb_v2 name parent Operate on columns Common queries	100	/shared/influxdb-v2/query-data/common-queries/operate-on-columns.md