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In This Chapter
Getting to know relational databases
Understanding database terminology
Finding out about Oracle
Using SQL and PL/SQL
Discovering what PL/SQL is good for
PL/SQL is an extension to the industry‐standard SQL language. Oracle Corporation developed PL/SQL and released the first version in 1991. PL/SQL is an easy‐to‐use procedural language that interacts seamlessly with the Oracle database. Server‐side PL/SQL is part of the Oracle database and needs no explicit installation or licensing.