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1. PL/SQL is basically a procedural language, which provides the functionality of decision making, iteration and many more features of procedural programming languages.
2. PL/SQL can execute a number of queries in one block using single command.
3. One can create a PL/SQL unit such as procedures, functions, packages, triggers, and types, which are stored in the database for reuse by applications.
4. PL/SQL provides a feature to handle the exception which occurs in PL/SQL block known as exception handling block.
5. Applications written in PL/SQL are portable to computer hardware or operating system where Oracle is operational.
6. PL/SQL Offers extensive error checking.

Advantage of PL SQL? PL/SQL allows sending an entire block of statements to the database at one time. This reduces network traffic and provides high performance for the applications. PL/SQL gives high productivity to programmers as it can query, transform, and update data in a database.

1. Create databases, tables and other tools to store company data. Develop functions within databases to promote convenience and ease of use. Analyse network functioning and adjust protocol depending on the functionality.
2. Write and implement solutions on time.
3. Write and maintain technical documentation.
4. Write and optimize in-application SQL statements.
5. Write and optimize SQL queries / procedures / statements / data extractions.
6. Write and refine stored procedures.
7. Create database tables, create various DB queries and assist in data mapping/testing activities in support of project. Detail and problem-solving orient in DataStage, jobs and addressing production issues such as performance tuning and enhancement.