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Course Outline
Relational Database Models
- Architecture of relational databases
- Relational algebra operators
Data Retrieval
- Best practices for constructing SQL queries
- SELECT statement syntax
- Retrieving all columns
- Queries involving arithmetic operations
- Column aliases
- Literals
- String concatenation
Filtering Results
- Using the WHERE clause
- Comparison operators
- LIKE conditions
- Prerequisite conditions with BETWEEN ... AND
- IS NULL checks
- IN conditions
- 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 scalar and aggregate functions
- Text, numeric, and date functions
- Data type conversion functions
- Nesting functions
- Managing NULL values
Data Aggregation via Grouping Functions
- Overview of grouping functions
- Handling of NULL values in grouping functions
- Creating data groups with the GROUP BY clause
- Grouping across multiple columns
- Filtering group results with the HAVING clause
Retrieving Data from Multiple Tables
- Types of table joins
- Table aliases
- Defining joins within the WHERE clause
- INNER JOIN operations
- External merges: LEFT and RIGHT joins
- The Cartesian product
Subqueries
- Integrating subqueries into SELECT statements
- 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
Inserting, Updating, and Deleting Data
- The INSERT command
- The UPDATE command
- The DELETE command
Transactions
Requirements
- Basic computer proficiency
- Familiarity with any standard 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,
