Well, I am back with another SQL question and you guys have been so helpful that I figured I give it another shot.<br><br>So, I have a table that has events being ...

How to get rolling average in SQL? Rolling Average (or Moving Average) is a method of calculating an updated average over time, reflecting trends as new data points are added. Let’s say we’re tracking ...

Twitter SQL Interview Question: Given a table of tweet data over a specified time period, calculate the 3-day rolling average of tweets for each user. Output the user ID, tweet date, and rolling ...

Hey, been reading the board for a bit. First post. I'm having issues coming up with a SQL query that will provide the average admits for each day of the week. However, I can't for the life of me get ...

(product_id, start_date, end_date) is the primary key for this table. Each row of this table indicates the price of the product_id in the period from start_date to end_date. For each product_id there ...