SQL CountIf 根据平均值从另一列满足条件

Question

I want to get a count of cells in Column A that meet a criteria (average of 10 minutes or more) in Column B using SQL. Apologies as I'm definitely not an SQL expert. Column B has wait times by second and I need to change it to minute, so basically my equation would be Column_B/60, but then also I want to only count the cells in Column A that have an average of 10 minutes or more in Column B. My current formula is below, I know it's off but to give an idea:

COUNT(CASE Column_A
WHERE Column_B/60 >= 10)
END

Answer 1

You can try

SELECT COUNT(*) FROM table_name WHERE Column_B/60 >= 10;

Answer 2

It can be achieved using the two step process below:

1) HH:MM:SS

To display Column_B in an HH:MM:SS format, set the Field Type to:

Number > Duration (Sec.)

If required, change the aggregation as required, such as to AVG .

2) CASE Statement

One way that it can be achieved is by displaying the Column_B value in seconds (60 seconds * 10 minutes):

COUNT(CASE
    WHEN Column_B >= 600 THEN Column_A
    ELSE NULL END)

Google Data Studio Report and a GIF to elaborate: