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Update Guide-for-backend-SQL-developers.md #1580

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2 changes: 1 addition & 1 deletion docs/StardustDocs/topics/guides/Guide-for-backend-SQL-developers.md
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Expand Up @@ -182,7 +182,7 @@ Think of Kotlin DataFrame as a **data analysis/ETL tool**, not an ORM.
| `SUM(amount)` | `.aggregate { sum { amount } }` |
| `JOIN` | `.join(otherDf) { id match right.id }` |
| `LIMIT 5` | `.take(5)` |
| **Pivot:** <br>`SELECT * FROM crosstab('SELECT region, year, SUM(amount) FROM sales GROUP BY region, year') AS ct(region text, y2023 int, y2024 int);` | `.pivot(region, year) { sum { amount } }` |
| **Pivot:** <br>`SELECT * FROM crosstab('SELECT region, year, SUM(amount) FROM sales GROUP BY region, year') AS ct(region text, y2023 int, y2024 int);` | `.groupBy { region }.pivot { year }. sum { amount }` |
| **Explode array column:** <br>`SELECT id, unnest(tags) AS tag FROM products;` | `.explode { tags }` |
| **Update column:** <br>`UPDATE sales SET amount = amount * 1.2;` | `.update { amount }.with { it * 1.2 }` |

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