Podcast
Questions and Answers
ما هي اللغة البرمجية التي تمثل PL/SQL؟
ما هي اللغة البرمجية التي تمثل PL/SQL؟
SQL هي لغة برمجة إجرائية.
SQL هي لغة برمجة إجرائية.
False
اشرح الحاجة إلى PL/SQL.
اشرح الحاجة إلى PL/SQL.
PL/SQL تعالج القيود الموجودة في SQL.
PL/SQL هي لغة برمجة __________.
PL/SQL هي لغة برمجة __________.
Signup and view all the answers
قم بربط الخصائص التالية مع اللغات المناسبة:
قم بربط الخصائص التالية مع اللغات المناسبة:
Signup and view all the answers
ما هي الفروق بين SQL و PL/SQL؟
ما هي الفروق بين SQL و PL/SQL؟
Signup and view all the answers
PL/SQL هو معيار تم وضعه من قبل ANSI.
PL/SQL هو معيار تم وضعه من قبل ANSI.
Signup and view all the answers
اذكر أحد القيود الرئيسية لـ SQL.
اذكر أحد القيود الرئيسية لـ SQL.
Signup and view all the answers
استعمال الدالة UPDATE لتحديث معلومات ______.
استعمال الدالة UPDATE لتحديث معلومات ______.
Signup and view all the answers
شحال من جملة SQL تحتاج تكتب لتحديث job_id؟
شحال من جملة SQL تحتاج تكتب لتحديث job_id؟
Signup and view all the answers
Study Notes
Introduction to PL/SQL
- PL/SQL is Oracle Corporation's procedural programming language for relational databases.
- It extends SQL with procedural logic.
- PL/SQL is a third-generation programming language (3GL).
- PL/SQL combines program logic and control flow with SQL.
- PL/SQL is a standard and portable language for Oracle development.
- It's also a high-performance, highly integrated database language.
Objectives
- Describe PL/SQL.
- Differentiate between SQL and PL/SQL.
- Explain the need for PL/SQL.
Purpose
- To describe the characteristics of PL/SQL and the differences between PL/SQL and SQL.
- To learn how PL/SQL addresses the limitations SQL. This helps understanding the necessity of PL/SQL.
PL/SQL Description
- A procedural language extension to SQL.
- An Oracle proprietary programming language.
- Combines program logic and control flow with SQL.
SQL Description
- A nonprocedural language.
- Also known as a declarative language.
- A fourth-generation programming language (4GL).
- Primarily used to access and modify data in relational databases.
- Standardized by the American National Standards Institute (ANSI).
- Vendors (like Oracle) might include proprietary SQL features in database environments.
SQL Statement
- A simple, straightforward SQL statement.
- Modifying data conditionally in SQL can have limitations.
- Can't easily update data in conditional manners.
Limitations of SQL
- Difficulty with conditional data modifications
- Promoting employees based on tenure and job type.
- Needs multiple SQL statements for each type of job updates , making the task tedious.
Limitations of SQL (Solution)
- One solution for updating job_id data is shown.
- To update multiple job_ids you will need multiple SQL statements.
PL/SQL Extends SQL with Procedural Logic
- Write one statement (PL/SQL) to promote sales representatives, marketing representatives, and stock clerks.
- PL/SQL makes it possible to write one statement to complete a task.
Procedural Constructs
- Use PL/SQL to write procedural code and embed SQL statements.
- Procedural code includes variables, constants, cursors, conditional logic, and iteration.
- PL/SQL code blocks can be saved and named, then executed when needed.
Characteristics of PL/SQL
- Highly structured, readable, and accessible language.
- Standard and portable language for Oracle development.
- Works with SQL as an embedded language.
- High-performance, highly integrated database language.
- Based on the Ada Programming Language with syntax similarities.
Terminology
- Key terms in the lesson: PL/SQL, Procedural Constructs.
Summary
- Learned to describe PL/SQL.
- Differentiated between SQL and PL/SQL.
- Explained the need for PL/SQL.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
هذا الاختبار يهدف إلى توضيح خصائص PL/SQL والاختلافات بين PL/SQL وSQL. ستتعلم كيفية معالجة PL/SQL للقيود الموجودة في SQL وأهمية PL/SQL في تطوير قواعد البيانات. انطلق لاستكشاف هذه اللغة البرمجية المتقدمة!
