What is CURRENT_DATE in Snowflake?
CURRENT_DATE is a built-in function in Snowflake that returns the current date based on the session’s time zone. It is commonly used in date-based filtering, calculations, and reporting.
Syntax of CURRENT_DATE
SELECT CURRENT_DATE; This query returns the current date in YYYY-MM-DD format.
Examples of Using CURRENT_DATE
1. Getting Today’s Date
SELECT CURRENT_DATE AS today; Output: 2025-02-10
2. Filtering Data for Today’s Entries
SELECT * FROM orders WHERE order_date = CURRENT_DATE; 3. Calculating the Difference Between Dates
SELECT DATEDIFF(DAY, order_date, CURRENT_DATE) AS days_since_order FROM orders; 4. Adding or Subtracting Days
SELECT CURRENT_DATE + INTERVAL '7 DAYS' AS next_week; SELECT CURRENT_DATE - INTERVAL '30 DAYS' AS last_month; 5. Formatting CURRENT_DATE
You can format the output of CURRENT_DATE using TO_CHAR:
SELECT TO_CHAR(CURRENT_DATE, 'Month DD, YYYY') AS formatted_date; Output: February 10, 2025
Differences Between CURRENT_DATE and CURRENT_TIMESTAMP
| Function | Returns | Time Component |
|---|---|---|
CURRENT_DATE | Current date | No |
CURRENT_TIMESTAMP | Current date & time | Yes |
CURRENT_TIME | Current time only | Yes |
If time precision is needed, use CURRENT_TIMESTAMP instead of CURRENT_DATE.
Best Practices for Using CURRENT_DATE
- Use CURRENT_DATE for Static Date Comparisons: Ideal for filtering records by date without a time component.
- Be Mindful of Time Zones: The returned date is based on the session time zone, which can be adjusted using
ALTER SESSION SET TIMEZONE. - Avoid Using CURRENT_DATE in Indexing Columns: Since
CURRENT_DATEchanges daily, queries with dynamic date filtering may not benefit from indexing.
Using Snowflake with Evidence
For teams working with date-based analytics in Snowflake, Evidence provides a seamless way to create automated reports and dashboards. With Evidence, you can:
- Integrate CURRENT_DATE-based filters in dynamic reports.
- Track trends and rolling date ranges for business intelligence.
- Automate recurring analytics workflows with SQL-driven reporting.
Explore more about using Snowflake with Evidence by visiting the Evidence documentation.
