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docs: tested and updated examples

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meelahme 2025-07-31 22:26:53 -07:00
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content/shared/sql-reference/where.md
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@ -111,7 +111,7 @@ WHERE "location" = 'santa_monica'
```
{{< expand-wrapper >}}
{{% expand "View query explanation" %}}
{{% expand "View example results" %}}
This query filters data to include only records from the previous calendar day:
@ -119,10 +119,19 @@ This query filters data to include only records from the previous calendar day:
- `DATE_TRUNC('day', ...)` truncates to the start of that day (00:00:00)
- The range spans from yesterday at 00:00:00 to today at 00:00:00
| level description | location | time | water_level |
| :---------------- | :----------- | :----------------------- | :---------- |
| below 3 feet | santa_monica | 2019-08-18T12:00:00.000Z | 2.533 |
| below 3 feet | santa_monica | 2019-08-18T12:06:00.000Z | 2.543 |
| below 3 feet | santa_monica | 2019-08-18T12:12:00.000Z | 2.385 |
| below 3 feet | santa_monica | 2019-08-18T12:18:00.000Z | 2.362 |
| below 3 feet | santa_monica | 2019-08-18T12:24:00.000Z | 2.405 |
| below 3 feet | santa_monica | 2019-08-18T12:30:00.000Z | 2.398 |
{{% /expand %}}
{{< /expand-wrapper >}}
#### Get data from the last 24 hour
#### Get data from the last 24 hours
```sql
SELECT *
@ -131,10 +140,19 @@ WHERE time >= NOW() - INTERVAL '1 day'
```
{{< expand-wrapper >}}
{{% expand "View query explanation" %}}
{{% expand "View example results" %}}
This query returns data from exactly 24 hours before the current time. Unlike the "yesterday" example, this creates a rolling 24-hour window that moves with the current time.
| level description | location | time | water_level |
| :---------------- | :----------- | :----------------------- | :---------- |
| below 3 feet | santa_monica | 2019-08-18T18:00:00.000Z | 2.120 |
| below 3 feet | santa_monica | 2019-08-18T18:06:00.000Z | 2.028 |
| below 3 feet | santa_monica | 2019-08-18T18:12:00.000Z | 1.982 |
| below 3 feet | santa_monica | 2019-08-19T06:00:00.000Z | 1.825 |
| below 3 feet | santa_monica | 2019-08-19T06:06:00.000Z | 1.753 |
| below 3 feet | santa_monica | 2019-08-19T06:12:00.000Z | 1.691 |
{{% /expand %}}
{{< /expand-wrapper >}}
@ -147,10 +165,12 @@ WHERE time >= DATE_TRUNC('week', NOW())
```
{{< expand-wrapper >}}
{{% expand "View query explanation" %}}
{{% expand "View example results" %}}
This query returns all data from the start of the current week (Monday at 00:00:00) to the current time. The DATE_TRUNC('week', NOW()) function truncates the current timestamp to the beginning of the week.
level description location timew ater_levelbelow 3 feetsanta_monica2019-08-12T00:00:00.000Z2.064below 3 feetsanta_monica2019-08-14T09:30:00.000Z2.116below 3 feetsanta_monica2019-08-16T15:45:00.000Z1.952below 3 feetsanta_monica2019-08-18T12:00:00.000Z2.533below 3 feetsanta_monica2019-08-18T18:00:00.000Z2.385below 3 feetsanta_monica2019-08-19T10:30:00.000Z1.691
{{% /expand %}}
{{< /expand-wrapper >}}