Conditional logic with the CASE expression
CASE is SQL’s answer to other programming languages IF-ELSE statement. If you need to test a condition and return a value CASE is the expression you need.
Tag: sql
Why you need SQL window functions (part 2)
SQL Server Window Functions are incredibly powerful and allow us to access a total from another row and bucket data to show top performers.
Why you need SQL Window Functions (part 1)
SQL window functions are incredibly powerful and allow us to see the rows in a table with a new column showing a running total, rank or moving average.
SQL aggregate functions and Mariah Carey
Aggregate functions bring your data to life.
They allow you to take a standard table and use a function or two to build metrics and answer questions about the data.
Search with system tables
Your database doesn’t just contain your data. It also contains data about your data.
A database is like a dance class
This week I got to thinking, a ballet class is a good way to describe database concepts.
