Udemy
    •  
    •  
    •  
    •  
    •  
    •  
    •  
    •  
Turn what you know into an opportunity and reach millions around the world.
Learn More
Your cart is empty.
Keep shopping
Developing SQL queries for oracle databases
Rating: 2.7 out of 5(7 ratings)
272 students
Last updated 3/2026
English

What you'll learn

  • Understand the basics of Oracle SQL and database concepts.
  • Install and configure Oracle Database on your system.
  • Connect to Oracle databases using SQLPlus, SQL Developer, and TOAD.
  • Unlock and work with sample schema accounts and tables in Oracle.
  • Start and stop the Oracle Database Server and manage the Oracle Listener.
  • Create new database users and tables for custom applications.
  • Write effective subqueries to enhance query complexity and functionality.
  • Optimize SQL queries for better performance and efficiency.
  • Remove duplicate records using appropriate SQL techniques.
  • Create and use views to simplify query writing and manage data access.
  • Use aggregate functions like AVG, COUNT, MAX, MIN, and SUM to perform data summarization.
  • Apply aggregate functions to gain insights from data within tables.
  • Utilize character functions to manipulate text data effectively.
  • Apply conversion functions to transform data between different formats.
  • Work with date functions to manage and calculate dates in SQL queries.
  • Use numeric functions to perform advanced mathematical calculations.
  • Analyze data trends using functions like RANK, DENSE_RANK, and ROW_NUMBER.
  • Compare data sets using LEAD and LAG functions.
  • Aggregate lists of data into a single result with the LISTAGG function.
  • Identify the first and last records in a group with FIRST and LAST functions.
  • Master various types of joins, including SELF, EQUI, NON-EQUI, CARTESIAN, and OUTER joins.
  • Combine and retrieve data from multiple tables using advanced join techniques.
  • Use set operators like UNION, UNION ALL, INTERSECT, and MINUS to manipulate and combine query results.
  • Develop complex SQL queries by effectively integrating set operators and joins.

Course content

8 sections53 lectures4h 10m total length
  • Introduction4:58
  • Overview of Oracle SQL2:05
  • Basic Database concepts4:16
  • Oracle Installation Requirements1:27
  • Download Oracle 21C3:59
  • Install Oracle 21C1:58
  • Connect to Oracle with SQLPlus3:13
  • What is SQL Developer2:41
  • Download SQL Developer3:41
  • Download Sample Oracle 21c Schemas2:12
  • Unlock Sample Schema Account5:18
  • Unlock sample schema tables4:39
  • Connect to sample schema account1:49
  • How to start and stop Oracle Database Server1:26
  • Oracle Listener4:05
  • What is TNS Names4:09
  • Create a new database user1:56
  • Creating a new table2:23
  • Download Oracle 11g Database4:58
  • Download TOAD3:03
  • Install TOAD3:21
  • Connect TOAD to Oracle2:42

Requirements

  • Basic Computer Literacy: Familiarity with using a computer, managing files, and navigating directories.
  • Understanding of Basic Programming Concepts (optional but helpful): Concepts like variables, data types, and basic syntax structures (helpful but not mandatory).
  • Fundamental Knowledge of Databases (optional): Awareness of what databases are and their purpose in data storage and retrieval. Experience with any database system (e.g., MySQL, PostgreSQL) is beneficial but not required.
  • Computer: A laptop or desktop with the following minimum specifications: Operating System: Windows, macOS, or Linux. RAM: 4GB or more (8GB or higher recommended for better performance). Free Disk Space: At least 10GB to accommodate Oracle Database and associated tools.
  • Oracle Database Software: Oracle Database 21C: Downloadable during the course. Instructions for installation are provided.
  • SQL Tools: SQLPlus: Comes with Oracle Database. SQL Developer: A free IDE for Oracle SQL development (covered in the course). TOAD for Oracle: Optional tool for database management and query development.
  • Internet Connection: Required to download Oracle software.

Description

Unlock the power of data with Developing SQL Queries for Oracle Databases, a comprehensive course designed to teach you how to efficiently retrieve, manipulate, and manage data using Oracle SQL. Whether you’re a complete beginner or someone looking to deepen your knowledge of Oracle databases, this course provides the tools, techniques, and confidence you need to excel in database query development.

Why Learn SQL for Oracle Databases?

In today’s data-driven world, SQL (Structured Query Language) is the cornerstone of database management and analytics. Oracle, one of the most powerful database platforms, is widely used across industries for managing critical business data. Mastering SQL for Oracle databases opens doors to exciting career opportunities in data analytics, software development, database administration, and IT management. This course equips you with the essential skills to build robust queries, analyze data effectively, and tackle real-world database challenges.

What You’ll Learn

This course is designed to guide you step-by-step through SQL query development with Oracle databases. The curriculum is divided into clear, structured sections to ensure you build a solid foundation and progress seamlessly to advanced topics.

  • Section 1: Introduction and Oracle Database Setup
    Learn the basics of Oracle SQL, essential database concepts, and how to set up your development environment. From downloading and installing Oracle 21C to unlocking sample schemas and configuring tools like SQL Developer and TOAD, you’ll be fully equipped to start working with Oracle databases.

  • Section 2: Essential SQL Query Components
    Discover the building blocks of effective queries, including subqueries, views, and optimization techniques. You’ll also learn to remove duplicates and streamline your data retrieval process.

  • Section 3: SQL Aggregate Functions
    Master functions like AVG, COUNT, SUM, MIN, and MAX to analyze and summarize data with precision.

  • Section 4: Single-Row Functions
    Explore character, numeric, date, and conversion functions to manipulate and format data to meet your specific needs.

  • Section 5: Analytical Functions
    Perform advanced data analysis with powerful functions like RANK, DENSE_RANK, LEAD, LAG, and LISTAGG. You’ll uncover trends, compare datasets, and gain deep insights into your data.

  • Section 6: Complex Queries with Joins
    Combine data from multiple tables using different types of joins, including SELF, EQUI, NON-EQUI, and OUTER joins. Build complex queries to extract meaningful information from your datasets.

  • Section 7: Set Operators
    Manipulate and combine query results with operators like UNION, INTERSECT, and MINUS to achieve advanced query functionalities.

Hands-On, Practical Learning

This course goes beyond theory, emphasizing real-world applications. You’ll work on practical exercises and projects that simulate real-life scenarios, such as creating queries for sample business data and developing analytics tools. Each concept is reinforced through guided examples to ensure you gain both confidence and proficiency.

Who Is This Course For?

This course is ideal for:

  • Beginner programmers looking to enter the world of databases.

  • Data analysts and IT professionals who want to enhance their SQL skills.

  • Students, self-learners, and career-changers seeking a comprehensive introduction to Oracle SQL.

  • Web and application developers who need to integrate SQL queries into their projects.

What You’ll Achieve

By the end of this course, you’ll have the skills to:

  • Write efficient SQL queries for Oracle databases.

  • Perform data analysis using aggregate and analytical functions.

  • Manage and optimize large datasets.

  • Build queries for complex real-world scenarios.

Start your journey to mastering Oracle SQL today, and gain the expertise to unlock the full potential of your data. Enroll now and take your skills to the next level!



Who this course is for:

  • Beginner Programmers and Developers Individuals starting their careers in software development and seeking to understand how to interact with databases using SQL. Those with minimal or no prior experience with SQL or Oracle databases.
  • Database Enthusiasts and Administrators Aspiring database administrators who want to master query building for Oracle databases. Professionals managing Oracle database systems who need a refresher on query development.
  • Data Analysts and Business Intelligence Professionals Individuals who analyze data and need SQL queries to extract, filter, and summarize large datasets. Analysts looking to enhance their skills with Oracle-specific SQL functions and techniques.
  • IT Professionals and System Administrators IT professionals who deal with database configuration, optimization, and troubleshooting. System administrators interested in developing advanced SQL skills for managing Oracle databases.
  • Students and Self-Learners College students studying computer science, data analytics, or related fields. Self-taught learners wanting to acquire SQL skills to expand their career opportunities.
  • Web and Application Developers Developers working on applications that require seamless interaction with Oracle databases. Professionals aiming to integrate Oracle database queries into their back-end systems.