SQL language in MSSQL Training Course
Writing efficient SQL queries against Microsoft SQL Server builds the foundation behind every enterprise data pipeline. Explores core techniques starting with relational database models, then progresses through data retrieval, filtering, sorting, and aggregation using grouping functions and subqueries. Guides participants through multi-table joins, set operators, DML operations, and transaction control to extract and manipulate business intelligence datasets reliably.
This course is available as onsite live training in Poland or online live training.Course Outline
Relational database models
- The structure of a relational database
- Relational operators
Download the data
- Rules for writing SQL queries
- The syntax for the SELECT
- Selecting all columns
- Inquiries from arithmetic operations
- Aliases columns
- Literals
- Concatenation
Restrict results
- The WHERE clause
- The comparison operators.
- LIKE Condition
- Prerequisite BETWEEN ... AND
- IS NULL condition
- IN condition.
- Logical operators
- Many of the conditions in the WHERE clause
- The order of operators
- DISTINCT clause
Sorting Data
- The ORDER BY clause
- Sorting by multiple columns or expressions
SQL Functions
- The differences between the functions of single and multi-rows
- Functions text, numeric, date,
- Conversion functions
- Nesting functions
- Handling of NULL values
Aggregating data using the grouping function
- Grouping functions
- How grouping functions treat NULL values
- Create groups of data - the GROUP BY clause
- Grouping multiple columns
- Reducing the function result grouping - the HAVING clause
Retrieving data from multiple tables
- Types of joins
- Aliases tables
- Joins in the WHERE clause
- INNER JOIN Inner join
- External Merge LEFT, RIGHT
- Cartesian product
Subqueries
- Place subqueries in the SELECT command
- Subqueries single and multi-lineage
- Operators Subqueries single-line
- Operators Subqueries multi-IN, ALL, ANY
Collective operators
- UNION operator
- INTERSECT operator
- EXCEPT operator
Insert, update, and delete data
- INSERT command
- UPDATE command
- DELETE command
Transactions
Requirements
- Computer literacy
- Knowledge of any operating system
Open Training Courses require 5+ participants.
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