
Explore the fundamentals of Oracle PL/SQL, including variables, if statements, case statements, loops and exception handling, and use PL/SQL blocks for CRUD operations and composite types.
Learn the basics of oracle pl/sql in a beginner’s guide part 1 through a crash course that highlights the most important topics within free content limits.
Explore pl/sql, a procedural extension for sql, with loops, conditions, and exceptions. Group related code with procedures, functions, packages, and triggers, and enjoy server-side performance and security benefits.
Declare and initialize variables in a PL/SQL block to store numbers, strings, dates, and complex data types, then use assignments and dbms_output to display results.
Master Oracle PL/SQL naming rules and conventions, including valid characters, case insensitivity, 30 character limit, prefixes, camel case, and uppercase constants for readability, maintainability, and reduced errors.
Learn how sql control structures govern flow within blocks, subprograms, or packages. Use if and case for decisions, loops for iteration, and go to with exception handling for sequential control.
Explore the case statement in PL/SQL as a concise conditional control structure that compares an expression to simple expressions to determine a result, with a simple example showing grade-based output.
Practice applying a case statement in PL/SQL by running a lab in live SQL, where two variables are assigned based on v_grade and the output reports the corresponding result.
Practice exception handling in an Oracle PL/SQL lab by tracing a division by zero error and catching the zero divide exception, printing an error division by zero not allowed.
DECLARE
v_counter NUMBER := 10;
BEGIN
WHILE v_counter <= 15 LOOP
DBMS_OUTPUT.PUT_LINE('Counter: ' || v_counter);
v_counter := v_counter + 1;
END LOOP;
END;
Execute sql queries, insertions, updates, and deletions within pl sql blocks, using declare variables, into clauses, and exception handling to manage no data found scenarios.
Practice PL/SQL with SQL in Oracle Live SQL by copying HR schema tables and performing select into, insert, update, and delete operations, handling no data found and dbms output.
Explore composite data types and records in Oracle PL/SQL lab, using dot notation and table%rowtype to fetch and display employee data, while avoiding common type and alignment errors.
Explore declaring and initializing nested tables in Oracle PL/SQL, extending to multiple elements, and printing values with a for loop, plus an employee row example using a composite type.
Course Overview: In this course, we will use Oracle LiveSQL, a free and accessible platform, to practice and hone our PL/SQL skills without the need to install any software. This approach allows us to focus entirely on learning PL/SQL rather than dealing with installation issues.
What You Will Learn:
Introduction to PL/SQL:
Understand the basics of PL/SQL and how it integrates with SQL.
Learn the advantages of using PL/SQL with Oracle databases.
PL/SQL Blocks and Syntax:
Explore the structure of PL/SQL blocks, including anonymous blocks, procedures, and functions.
Write and execute your first PL/SQL block.
Control Structures:
Master control structures such as IF statements, loops, and CASE statements to create dynamic and flexible code.
SQL in PL/SQL:
Learn how to embed SQL statements within PL/SQL blocks for seamless data manipulation.
Perform CRUD operations (Create, Read, Update, Delete) using PL/SQL.
Error Handling:
Implement robust error handling techniques using EXCEPTION blocks.
Learn to catch and handle predefined and user-defined exceptions.
Composite Data Types:
Explore records and collections to handle complex data structures.
Use associative arrays, nested tables, and VARRAYs in your PL/SQL programs.
Practical Examples and Assignments:
Gain hands-on experience with practical examples and assignments designed to reinforce your learning.
Work through real-world scenarios, such as salary calculations and employee management.
Course Projects: Throughout the course, you will work on several mini-projects:
Creating a copy of the employees table and performing operations on it.
Inserting, updating, selecting, and deleting records using PL/SQL.
Implementing error handling and using cursors for data retrieval.
Course Structure: This course is divided into two parts due to Udemy's new rule limiting free video length to a maximum of 2 hours. The complete course would take 4-6 hours, so I decided to split it into two parts. Part 2 will be completed by July 15.
By the end of this course, you will have a solid understanding of PL/SQL and be able to write efficient and maintainable PL/SQL code for Oracle databases. Whether you are a beginner or looking to enhance your database programming skills, this course is designed to meet your needs. Join us and start your journey to mastering PL/SQL today!