Learn the pros and cons of subqueries and joins in SQL, and how to decide when to use them in your database development projects. Sign in to view more content ...

How does sql process a statement containing sub-query? Question: Find the employees who's salary is more than the average salary earned by all employees /* Find the average compare avg with outer ...

If more than one subquery is used in a query-expression, the innermost query is evaluated first, then the next innermost query, and so on, moving outward. PROC SQL allows a subquery (contained in ...

For this example you create a view descriptor, VLIB.ALLEMP, based on SYBASE data. The outer PROC SQL query retrieves data from the view descriptor; the subquery uses a Pass-Through query to retrieve ...

# when we perform join operation on scalar subquery then sql treat scalary subquery(single value) as another table and perform join # using these tahble so as a ...