This section introduces you to the fundamental concepts of SQL and databases.
By the end of this section, you will be able to:
- Understand what SQL is and why it's important
- Know basic SQL syntax rules
- Distinguish between databases, tables, and schemas
- Perform basic CRUD (Create, Read, Update, Delete) operations
- Definition and purpose of SQL
- History and evolution
- SQL standards and dialects
- Real-world applications
- Case sensitivity
- Statement terminators
- Comments and documentation
- Naming conventions
- Reserved keywords
- Understanding database hierarchy
- What is a database?
- What is a table?
- What is a schema?
- Relationships between these concepts
- CREATE: Adding new data
- READ: Retrieving data
- UPDATE: Modifying existing data
- DELETE: Removing data
- Basic examples of each operation
- Completed 0-Setup
- Basic understanding of data organization
3-4 hours to complete all topics
- Write your first SELECT statement
- Create a simple table
- Insert sample data
- Update and delete records
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