1. What is PL/SQL ? PL/SQL is Oracle's Procedural Language extension to SQL. PL/SQL's language syntax, structure and datatypes are similar to that of ADA. The language includes object oriented programming techniques such as encapsulation, function overloading, information hiding (all but inheritance), and so, brings state-of-the-art programming to the Oracle database server and a variety of Oracle tools. PL SQL is a block structured programming language. It combines data manipulation & data processing power. It supports all SQL data types. Also has its own data types i,e BOOLEAN,BINARY INTEGER 2. What is the basic structure of PL/SQL ? A PL /SQL block has three parts: a declarative part, an executable part, and an exception-handling part. First comes the declarative part, in which items can be declared. Once declared, items can be manipulated in the executable part. Ex...