SQL is the only 22nd century tool available in 21st century
Here are the previous articles comparing architecture, database objects, data types, and data modeling of Oracle with Couchbase. This will focus on SQL support.
Oracle was the first and staunch supporter of SQL. Oracle’s SQL implementation beat IBM to market by two years. That changed the fortune of one or two people. :-) All of the modern relational databases implement SQL. So much so, the relational databases are sometimes called SQL databases, much to the chagrin of C. J. Date. Nations are known by their languages… English, French, and American(!). It’s not a stretch for a class of database systems to be known by their languages as well. SQL has been so effective, many big data and non-relational systems have picked up SQL as the lingua franca. SQL is here to stay, even for NoSQL systems.