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Duration 14 hours
Course Outline
Relational database models
- Structure of relational databases
- Relational operators
Data Retrieval
- Best practices for writing SQL queries
- SELECT statement syntax
- Selecting all columns
- Performing arithmetic operations in queries
- Using column aliases
- Literals
- String concatenation
Filtering Results
- The WHERE clause
- Comparison operators
- LIKE conditions
- Using BETWEEN ... AND
- IS NULL conditions
- IN conditions
- Logical operators
- Combining multiple conditions in WHERE clauses
- Operator precedence
- The DISTINCT clause
Sorting Data
- 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
- Nesting functions
- Handling NULL values
Aggregating Data with Grouping Functions
- Grouping functions
- How grouping functions handle NULL values
- Creating data groups using the GROUP BY clause
- Grouping by multiple columns
- Filtering grouped results with the HAVING clause
Querying Multiple Tables
- Types of joins
- Table aliases
- Joins within WHERE clauses
- INNER JOINs
- LEFT and RIGHT OUTER JOINs
- Cartesian products
Subqueries
- Using subqueries in SELECT statements
- 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
Data Modification: Insert, Update, and Delete
- INSERT statement
- UPDATE statement
- DELETE statement
Transactions
Requirements
- Computer literacy
- Familiarity with 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,
