Discussion
SQL is:
Answer: C
Correct answer: a data sublanguage.
SQL is called a data sublanguage because it does one part of the job and relies on a host language for the rest. It expresses what data is wanted, but has no general control flow, no user interface and no way to build an application on its own.
So it is embedded in C, Java or Python, which supply the loops, the branching and the presentation. It is not an operating system, and it is not a DBMS - Oracle and PostgreSQL are DBMSs, and SQL is the language through which they are addressed.
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