The PL/SQL programming language was developed by Oracle Corporation in the late 1980s as procedural extension language for SQL and the Oracle relational database. Following are certain notable facts about PL/SQL −
✔️PL/SQL is a completely portable, high-performance transaction-processing language.
✔️PL/SQL provides a built-in, interpreted and OS-independent programming environment.
✔️PL/SQL can also directly be called from the command-line SQL*Plus interface.
✔️Direct calls can also be made from external programming language calls to database.
✔️PL/SQL’s general syntax is based on that of ADA and Pascal programming language.
✔️Apart from Oracle, PL/SQL is available in TimesTen in-memory database and IBM DB2.
✔️Features of PL/SQL
PL/SQL has the following features −
✔️PL/SQL is tightly integrated with SQL.
✔️It offers extensive error checking.
✔️It offers numerous data types.
✔️It offers a variety of programming structures.
✔️It supports structured programming through functions and procedures.
✔️It supports object-oriented programming.
✔️It supports the development of web applications and server pages.
✔️Advantages of PL/SQL
✔️PL/SQL has the following advantages −
✔️SQL is the standard database language and PL/SQL is strongly integrated with SQL. PL/SQL supports both static and dynamic SQL. Static SQL supports DML operations and transaction control from PL/SQL block. In Dynamic SQL, SQL allows embedding DDL statements in PL/SQL blocks.
✔️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.
✔️PL/SQL saves time on design and debugging by strong features, such as exception handling, encapsulation, data hiding, and object-oriented data types.
✔️Applications written in PL/SQL are fully portable.
✔️PL/SQL provides a high-security level.
✔️PL/SQL provides access to predefined SQL packages.
✔️PL/SQL provides support for Object-Oriented Programming.
✔️PL/SQL provides support for developing Web Applications and Server Pages.
-
PLSQL (Procedural Language extensions to the Structured Query Language)
Architecture of MS SQL Server Advance SQL Views Working with Cursor Conditional Statements Loops Exception Handling Stored Procedures Functions Introduction to CTE in SQL Server Import / Export INDEXING TRIGGERS