Deardurff


Columns and Records

In this post, we discuss what columns and records are in a SQL table including an explanation of objects and entities.







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?