devxlogo

Nested Selects

Question:
In Microsoft Access you can use a query as the source for a select in a second query. Additionally, you can use two queries as the source by utilizing an inner join. What Access does is fire off the two queries and use the result set as the data source for the third. Since the two source queries are made up of their own select statements, can I somehow nest those queries into a third to produce the same data set?

Answer:
Yes, these are called virtual tables in SQL.

Charlie has over a decade of experience in website administration and technology management. As the site admin, he oversees all technical aspects of running a high-traffic online platform, ensuring optimal performance, security, and user experience.

See also  How Engineering Leaders Spot Weak Proposals

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.