Sub-queries return single value (or list of values) to the called query. The query within the main query is called nested query.
You May Also Like | Here’s How to Write a Subquery in SELECT Statement.
The use of WHERE (to filter rows), and DELETE a row very common in sub-queries. You can filter for rows and delete. Below example will give you clear idea on how to write Sub-query to delete specific row.
Here’s how to delete a row: SQL sub-query
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