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What is the meaning of PL/SQL and what is the architecture of PL/SQL? In view of this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

One: what is PL/SQL?

PL/SQL is an extension of the structured query language (SQL) used in Oracle. Unlike SQL, PL/SQL allows programmers to write code in procedural format, and the full form of PL/SQL is a "language extension of SQL." Combining the data processing power of SQL and the processing power of process language, you can create super powerful SQL queries. PL/SQL means to instruct the compiler "what to do" through SQL's programmatic way, and like other database languages, it gives programmers more control by using loops, conditions, and object-oriented concepts.

Second: the architecture of PL/SQL

The PL/SQL architecture consists of three main components:

1.PL/SQL block

Is a component with actual PL/SQL code, including the different parts of the code used to logically divide the code, the execution part used to handle statements, and the exception handling part used to handle errors, it also contains SQL instructions for interacting with the database server, and all PL/SQL units are treated as PL/SQL blocks, which is the initial stage of the architecture as the main input.

2.PL/SQL engine

The PL/SQL engine is the component that actually processes the code.

The PL/SQL engine separates the PL/SQL unit and the SQL part in the input.

The separate PL/SQL units will be handled by the PL/SQL engine itself.

The SQL part is sent to the database server, where the actual interaction with the database takes place.

Can be installed in database servers and application servers.

3. Database server

The database server is the most important component in the Pl/SQL unit that stores data.

The PL/SQL engine uses SQL in the PL/SQL unit to interact with the database server.

And it consists of a SQL executor, which parses the input SQL statement and performs the same operation.

Three: the advantages of using PL/SQL

Better performance because SQL is executed in batches rather than individual statements

High productivity

Tightly integrated with SQL

Completely portable

Tight security

Supports object-oriented programming concepts.

This is the answer to the question about the meaning of PL/SQL and what is the architecture of PL/SQL. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.

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