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Duration 14 hours
Course Outline
Relational database models
- The architecture of relational databases
- Relational operators
Retrieving data
- Best practices for composing SQL queries
- SELECT statement syntax
- Retrieving all columns
- Queries involving arithmetic operations
- Column aliases
- Literals
- String concatenation
Filtering results
- The WHERE clause
- Comparison operators
- Using the LIKE condition
- The BETWEEN ... AND prerequisite
- The IS NULL condition
- The IN condition
- Logical operators
- Combining multiple conditions within the WHERE clause
- Operator precedence
- The DISTINCT clause
Sorting Data
- The ORDER BY clause
- Sorting by multiple columns or expressions
SQL Functions
- Distinguishing between single-row and multi-row functions
- Text, numeric, and date functions
- Conversion functions
- Nesting functions
- Managing NULL values
Aggregating data using grouping functions
- Overview of grouping functions
- How grouping functions handle NULL values
- Creating data groups with the GROUP BY clause
- Grouping across multiple columns
- Filtering grouped results using the HAVING clause
Retrieving data from multiple tables
- Types of joins
- Table aliases
- Defining joins in the WHERE clause
- INNER JOIN (Inner join)
- Outer joins (LEFT, RIGHT)
- Cartesian products
Subqueries
- Placing subqueries within the SELECT command
- Single-row and multi-row subqueries
- Operators for single-row subqueries
- Operators for multi-row subqueries (IN, ALL, ANY)
Set operators
- UNION operator
- INTERSECT operator
- EXCEPT operator
Inserting, updating, and deleting data
- INSERT command
- UPDATE command
- DELETE command
Transactions
Requirements
- Computer literacy
- Knowledge of any operating system
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,
