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 ...

Develop queries in SQL to aggregate data stored in a database Develop queries in SQL that utilize subqueries Choose the proper datatype for storing a piece of information in a database Develop queries ...