Data metric functions¶
Snowflake provides built-in system data metric functions to measure data quality for tables and views:
- ACCEPTED_VALUES (system data metric function)
- APPROX_QUANTILE_25 (system data metric function)
- APPROX_QUANTILE_50 (system data metric function)
- APPROX_QUANTILE_99 (system data metric function)
- AVG (system data metric function)
- BLANK_COUNT (system data metric function)
- BLANK_PERCENT (system data metric function)
- CASE_FORMAT_VIOLATION_COUNT (system data metric function)
- CASE_FORMAT_VIOLATION_PERCENT (system data metric function)
- DATA_METRIC_SCHEDULED_TIME (system data metric function)
- DUPLICATE_COUNT (system data metric function)
- FRESHNESS (system data metric function)
- FUTURE_TIMESTAMP_COUNT (system data metric function)
- FUTURE_TIMESTAMP_PERCENT (system data metric function)
- INVALID_JSON_COUNT (system data metric function)
- INVALID_JSON_PERCENT (system data metric function)
- INVALID_NUMERIC_TYPE_CAST_COUNT (system data metric function)
- INVALID_NUMERIC_TYPE_CAST_PERCENT (system data metric function)
- MAX (system data metric function)
- MEDIAN (system data metric function)
- MIN (system data metric function)
- NEGATIVE_COUNT (system data metric function)
- NEGATIVE_PERCENT (system data metric function)
- NULL_COUNT (system data metric function)
- NULL_PERCENT (system data metric function)
- REFERENTIAL_INTEGRITY_COUNT (system data metric function)
- ROW_COUNT (system data metric function)
- SCHEMA_CHANGE_COUNT (system data metric function)
- SPECIAL_CHARACTER_COUNT (system data metric function)
- SPECIAL_CHARACTER_PERCENT (system data metric function)
- STDDEV (system data metric function)
- STRING_LENGTH_AVG (system data metric function)
- STRING_LENGTH_MAX (system data metric function)
- STRING_LENGTH_MIN (system data metric function)
- UNIQUE_COUNT (system data metric function)
- UNTRIMMED_STRING_COUNT (system data metric function)
- UNTRIMMED_STRING_PERCENT (system data metric function)
- VARIANCE (system data metric function)
- ZERO_COUNT (system data metric function)
- ZERO_PERCENT (system data metric function)
For details, see System data metric functions.