There will always be 1-2 queries that can be proven to work better in an alternative query language, other than SQL. For instance, I can surely find a couple of

There will always be 1-2 queries that can be proven to work better in an alternative query language, other than SQL. For instance, I can surely find a couple of awesome graph queries in the Cypher query language (Neo4j). Or some JSON queries in N1QL (CouchBase). Back in the days, they tried to advocate that QUEL was a BetterThing™. Where's QUEL now? Same will be said of LINQ in a decade. Whereas SQL will still be there.