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TO_DATE

Converts the input expression to a date.

Syntax​

to_date( <expr> )

Arguments​

ArgumentsDescription
<expr>A string or integer

The function extracts a date from the provided string. If the argument is an integer, the function interprets the integer as the number of days before (for a negative number) or after (for a positive number) the Unix epoch (midnight on January 1, 1970). See Examples for more details.

Return Type​

Returns a of Date type in the format “YYYY-MM-DD”.

Examples​

Using a String as Argument​

SELECT TO_DATE('2022-01-02T01:12:00+07:00');

---
2022-01-02

SELECT TO_DATE('2022-01-02 03:25:02.868894');

---
2022-01-02

SELECT TO_DATE('2022-01-02 02:00:11');

---
2022-01-02

SELECT TO_DATE('2022-01-02T02:00:22');

---
2022-01-02

SELECT TO_DATE('2022-01-02');

---
2022-01-02

Using an Integer as Argument​

SELECT TO_DATE(1);

---
1970-01-02

SELECT TO_DATE(-1);

---
1969-12-31
提示

Please note that a Date value ranges from 1000-01-01 to 9999-12-31. Databend would return an error if you run the following statement:

SELECT TO_DATE(9999999999999999999);