Architecture of PL/SQL
PL/SQL runs within the Oracle Database, where its engine processes procedural statements and sends SQL to the database kernel.
The PL/SQL architecture consists of three main components:
1. **PL/SQL Engine:** This engine is responsible for compiling and executing PL/SQL code. It contains a procedural statement executor that handles control flow and a SQL statement executor that passes SQL statements to the database's SQL engine.
2. **Database Server:** The Oracle Database server has the PL/SQL engine embedded within it. This allows for efficient processing of PL/SQL blocks as the code is executed directly on the server, minimizing network round-trips.
3. **Client-Side Tools:** Tools like SQL*Plus or other integrated development environments (IDEs) can send entire PL/SQL blocks to the database server for execution.
1. **PL/SQL Engine:** This engine is responsible for compiling and executing PL/SQL code. It contains a procedural statement executor that handles control flow and a SQL statement executor that passes SQL statements to the database's SQL engine.
2. **Database Server:** The Oracle Database server has the PL/SQL engine embedded within it. This allows for efficient processing of PL/SQL blocks as the code is executed directly on the server, minimizing network round-trips.
3. **Client-Side Tools:** Tools like SQL*Plus or other integrated development environments (IDEs) can send entire PL/SQL blocks to the database server for execution.
Diagram
A diagram illustrating the PL/SQL engine within the Oracle Database, showing how it processes PL/SQL blocks and interacts with the SQL statement executor.
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