Date & Time
Date and Time Data Types
Name | Storage Size | Resolution | Min Value | Max Value | Description |
---|---|---|---|---|---|
DATE | 2 bytes | day | 1000-01-01 | 9999-12-31 | YYYY-MM-DD |
DATETIME | 4 bytes | second | 1970-01-01 00:00:00 | 2105-12-31 23:59:59 | YYYY-MM-DD hh:mm:ss |
TIMESTAMP | 8 bytes | nanosecond | 1677-09-21 00:12:44.000 | 2262-04-11 23:47:16.854 | YYYY-MM-DD hh:mm:ss.ff |
Functions
Example
CREATE TABLE test_dt
(
date DATE,
datetime DATETIME,
datetime64 TIMESTAMP
);
DESC test_dt;
+------------+---------------+------+---------+
| Field | Type | Null | Default |
+------------+---------------+------+---------+
| date | Date16 | NO | 0 |
| datetime | DateTime32 | NO | 0 |
| datetime64 | DateTime64(3) | NO | 0 |
+------------+---------------+------+---------+
INSERT INTO dt VALUES ('2022-04-07', '2022-04-07 01:01:01', '2022-04-07 01:01:01.123');
SELECT * FROM dt;
+------------+---------------------+-------------------------+
| date | datetime | datetime64 |
+------------+---------------------+-------------------------+
| 2022-04-07 | 2022-04-07 01:01:01 | 2022-04-07 01:01:01.123 |
+------------+---------------------+-------------------------+