Question

Sub queries can appear in __________

Select one or more:
a. HAVING clause
b. FROM clause
c. SELECT clause
d. WHERE clause
e. GROUP BY clause

Answer 1

In SQL, subqueries can appear in the HAVING, FROM, SELECT, and WHERE clauses. They are used for dynamic data retrieval, providing more complex query capabilities.

Step-by-step explanation:

The question 'Sub queries can appear in which clauses?' pertains to SQL (Structured Query Language), which is used in database management and manipulation. In SQL, subqueries can be utilized in different parts of a query to provide more dynamic and powerful data retrieval options. Specifically, subqueries can appear in the following clauses:

• HAVING clause
• FROM clause
• SELECT clause
• WHERE clause

It is important to note, however, that the GROUP BY clause is not listed above because it does not directly support subqueries. Instead, the HAVING clause is often used in conjunction with GROUP BY to apply conditions to grouped rows, potentially using subqueries for more complex conditions.