Deardurff





Using GROUP BY and HAVING

In this post, we discuss how to use the GROUP BY and HAVING clause in a T-SQL statement and how to use them with aggregate functions.



Table Constraints

Restricting data by using Table Constraints in SQL Server. What are the different table constraints in SQL Server?


Tables and Relationships

Understanding the difference between Parent Tables and Child Tables and the difference between Primary Keys vs Foreign Keys.



Working with Schemas

What is the schema object in SQL Server? How is the schema object used for organization, naming, and security?