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Course Outline
Relational database models
- The structure of a relational database
- Relational operators
Retrieving data
- Best practices for composing SQL queries
- SELECT syntax
- Retrieving all columns
- Queries involving arithmetic operations
- Column aliases
- Literals
- String concatenation
Filtering results
- The WHERE clause
- Comparison operators
- The LIKE condition
- The BETWEEN ... AND condition
- The IS NULL condition
- The IN condition
- Logical operators
- Combining multiple conditions in the WHERE clause
- Operator precedence
- The DISTINCT clause
Data sorting
- The ORDER BY clause
- Sorting by multiple columns or expressions
SQL functions
- Differences between single-row and multi-row functions
- Text, numeric, and date functions
- Conversion functions
- Nested functions
- Managing NULL values
Data aggregation via grouping functions
- Overview of grouping functions
- How grouping functions handle NULL values
- Forming data groups using the GROUP BY clause
- Grouping by multiple columns
- Filtering group results with the HAVING clause
Accessing data across multiple tables
- Types of joins
- Table aliases
- Joins specified in the WHERE clause
- INNER JOIN
- LEFT and RIGHT OUTER JOINs
- The Cartesian product
Subqueries
- Placing subqueries within the SELECT command
- Scalar (single-row) and multi-row subqueries
- Operators for single-row subqueries
- Operators for multi-row subqueries (IN, ALL, ANY)
Set operators
- The UNION operator
- The INTERSECT operator
- The EXCEPT operator
Data modification: Insert, update, and delete
- The INSERT command
- The UPDATE command
- The DELETE command
Transactions
Requirements
- Basic computer literacy
- Knowledge of any operating system
14 Hours
Testimonials (3)
personalised to our understanding and data
Vincent Long - ASSMANG PTY LTD
Course - Business Intelligence with SSAS
It was very interactive and it kept us interested.
Raluca Alexandra PUNGA
Course - SQL Fundamentals
Small group, in-person for 3 days,
