Java is a powerful and versatile object-oriented application programming language. Java is an SDK.
Java Virtual Machine:
The JVM executes in memory in a multitude of environments, effectively allowing platform independence for Java-written software.
JavaScript:
A client-side scripting language loosely based on the Java object programming language. JavaScript is, in reality, quite powerful and can even be used to build object-oriented coding.
Join:
A joined query implies that the records from more than a single record source (table) are merged together. Joins can be built in various ways including set intersections, various types of outer joins, and otherwise .
JOIN Clause:
This clause is the most up-to-date SQL standard, used for coding join queries.