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Fix typos in the SQL Roadmap (#5365)

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Updated the row query definition. Row queries can return not just one but multiple rows.
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Siddharth Vijay Sai 2024-03-18 21:13:48 +05:30 committed by GitHub
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src/data/roadmaps/sql/content/107-sub-queries/index.md
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@ -33,7 +33,7 @@ WHERE column_name OPERATOR
WHERE roll_id = (SELECT roll_id FROM student WHERE name='John');
```
2. **Row subquery**: It returns single row of two or more values.
2. **Row subquery**: It returns a single row or multiple rows of two or more values.
```sql
SELECT * FROM student
@ -57,4 +57,4 @@ WHERE column_name OPERATOR
## General Note
Subqueries can be either correlated or uncorrelated. A correlated subquery is a subquery that uses values from the outer query. Conversely, an uncorrelated subquery is a subquery that can be run independently of the outer query.
Subqueries can be either correlated or uncorrelated. A correlated subquery is a subquery that uses values from the outer query. Conversely, an uncorrelated subquery is a subquery that can be run independently of the outer query.