The outer PROC SQL query retrieves data from the view descriptor; the subquery uses a Pass-Through query to retrieve data. This query returns the names of employees who earn less than the average ...

Many people are confused by various JOIN operations supported by SQL. Learn to master the SQL command line with this crash course in JOIN syntax.

James Bayly: Head of Business Dev at SubQuery explains how platform serves as decentralized data aggregation layer b/w L1-chains, Dapps.