## Syntax
```mermaid
%%{init: {
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'themeVariables': {
'fontSize': '11px',
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flowchart LR
Start((START)) --> DATE_ROUND[DATE_ROUND]:::quoted
DATE_ROUND --> End((END))
```
## Purpose
The `DATE_ROUND` SQL function returns the rounded value of a `datetime`.
See also [[DATE_CEIL]], [[DATE_FLOOR]] and [[DATE_TRUNC]].
Parameters:
- Precision (`varchar2`): one of `millenium`, `century`, `decade`, `year`, `quarter`, `month`, `week`, `day`, `hour`, `minute`, `second`, `milliseconds` and `microseconds`.
- Date/time (`datetime`): the date/time to round.
Returns: the rounded with the defined precision of the input date/time as `datetime`. The original value is returned when an unlisted precision is specified.
## Examples
The following example retrieves the rounded value of the system time on millennium basis:
```sql
select date_round('millenium', sysdateutc)
-------------------
01-01-2000 00:00:00
```
The following example retrieves the rounded value of the system time on decade basis:
```sql
select date_round('decade', sysdateutc)
-------------------
01-01-2030 00:00:00
```