Can you do multiple subqueries in SQL?

Question

Multiple row subquery returns one or more rows to the outer SQL statement. You may use the IN, ANY, or ALL operator in outer query to handle a subquery that returns multiple rows. 7 апр. 2022 г.

How many subqueries can you have in SQL?

A subquery is a complete query that appears in the WHERE or HAVING clause of an SQL statement. You can specify up to 16 subqueries within a single SQL statement, and you can specify subqueries within a subquery.

Can subqueries be nested multiple times?

Subqueries can be nested multiple times.

Can a subquery be multi valued?

A multi-value subquery retrieves more than one value and has two forms of syntax, as shown below.

Is there a limit to number of subqueries that can be used in a script?

A subquery in the WHERE clause of a SELECT statement is also called a nested subquery. A subquery can contain another subquery. Oracle Database imposes no limit on the number of subquery levels in the FROM clause of the top-level query. You can nest up to 255 levels of subqueries in the WHERE clause.

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