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Course Outline
Relational Database Models
- Architecture of a relational database
- Relational operators
Data Retrieval
- Guidelines for writing SQL queries
- SELECT statement syntax
- Retrieving all columns
- Performing arithmetic operations in queries
- Column aliases
- Literals
- String concatenation
Filtering Results
- The WHERE clause
- Comparison operators
- LIKE pattern matching
- BETWEEN ... AND range conditions
- IS NULL checks
- IN list conditions
- Logical operators
- Combining multiple conditions in the WHERE clause
- Operator precedence rules
- DISTINCT keyword usage
Organizing 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
- Function nesting
- Managing NULL values
Aggregating Data with Grouping Functions
- Grouping functions overview
- Handling NULL values within grouping functions
- Creating data groups using the GROUP BY clause
- Grouping by multiple columns
- Filtering grouped results using the HAVING clause
Retrieving Data from Multiple Tables
- Types of joins
- Table aliases
- Joins implemented within the WHERE clause
- INNER JOIN operations
- Outer joins: LEFT and 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, and ANY
Set Operators
- UNION operator
- INTERSECT operator
- EXCEPT operator
Modifying Data: Insert, Update, and Delete
- INSERT command
- UPDATE command
- DELETE command
Transactions
Requirements
- Basic computer proficiency
- Familiarity with any operating system
14 Hours
Testimonials (1)
The practical examples, which already had more realistic information prepared in the database.
Enrique Pruneda Sandoval - GEODIS
Course - SQL language in MSSQL
Machine Translated