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May 7, 2025
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Update sql_style.md #866

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35 changes: 35 additions & 0 deletions src/concepts/sql_style.md
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Expand Up @@ -368,6 +368,41 @@ WHERE
sample_id = '42'
```

## Comma at the End of the Line

Commas between `SELECT` elements should always be at the end of the line.
For example:

**Good**

```sql
SELECT
client_id,
os_name,
submission_date
FROM
main_summary
WHERE
submission_date > '20180101'
LIMIT
10
```

**Bad**

```sql
SELECT
client_id
, os_name
, submission_date
FROM
main_summary
WHERE
submission_date > '20180101'
LIMIT
10
```

## Nested Queries

Do not use nested queries.
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