Important

Self-managed SingleStore will soon transition from version 9.1 RC to version 10. This new semantic versioning scheme will provide SingleStore with finer control over engine and feature releases that were not possible with the current versioning scheme.

In the interim, SingleStore 9.1 RC can be used to preview, evaluate, and provide feedback on the new and upcoming features in SingleStore 10 prior to its general availability. Ahead of this transition, SingleStore 9.0 is recommended for production workloads, which can later be upgraded to SingleStore 10.

DATEDIFF

Syntax

DATEDIFF(date1, date2)

Arguments

date1, date2: a valid date, datetime, or parsable date string. Only the date part is used.

Return Type

Integer. If date1 or date2 is not a valid date, returns NULL.

Examples

SQL

SELECT DATEDIFF('2017-03-27', '2017-03-26') AS days_til_graduation;

+---------------------+
| days_til_graduation |
+---------------------+
|                   1 |
+---------------------+

If date1 is in the past, the function returns a negative result.

SQL

SELECT DATEDIFF('2017-03-26', '2017-03-27') AS days_til_graduation;

+---------------------+
| days_til_graduation |
+---------------------+
|                  -1 |
+---------------------+

NOW() can be used as one of the parameters.

SQL

SELECT DATEDIFF('2099-12-31', NOW()) AS days_til_graduation;

+---------------------+
| days_til_graduation |
+---------------------+
|               30229 |
+---------------------+