SQL DATE Data Type
A calendar date only — year, month, day. No time of day, no timezone.
What & Why
DATE stores a calendar date: year, month, day. Nothing about the time of day is stored at all — 2024-01-15 is a complete, valid DATE value on its own.
See How It Works
| id | name | channel | spend | start_date | end_date | status | target_segment |
|---|---|---|---|---|---|---|---|
| 1 | Spring Launch | google_ads | 55000.00 | 2024-01-15 | 2024-03-31 | active | smb |
| 2 | Retention Webinar | 45000.00 | 2024-02-10 | 2024-04-15 | active | enterprise | |
| 3 | Finance Retargeting | 50000.00 | 2024-03-12 | 2024-05-31 | active | enterprise | |
| 4 | Enterprise Search | google_ads | 60000.00 | 2024-04-01 | 2024-06-30 | active | enterprise |
EXAMPLE QUERY
SELECT name, start_date FROM marketing.campaigns
WHERE start_date > '2024-02-01';RESULT — campaigns after February 1, 2024
| name | start_date |
|---|---|
| Retention Webinar | 2024-02-10 |
| Finance Retargeting | 2024-03-12 |
| Enterprise Search | 2024-04-01 |
DATE values compare chronologically, so all three campaigns that start after 2024-02-01 are returned in date order.
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