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SQL 3 Done Except Q4 #59

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SQL 3 Done Except Q4 #59

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44e68d5
add Consecutive-Numbers.sql
itsAbilash Dec 22, 2024
18c606b
add Active_Users.sql
itsAbilash Dec 23, 2024
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1 change: 1 addition & 0 deletions Active_Users.sql
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Original file line number Diff line number Diff line change
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SELECT ACTIVITY_DATE AS DAY, COUNT(DISTINCT USER_ID) AS ACTIVE_USERS FROM ACTIVITY WHERE DATEDIFF('2019-07-27',ACTIVITY_DATE) <30 AND ACTIVITY_DATE <= '2019-07-27' GROUP BY ACTIVITY_DATE;
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3 changes: 3 additions & 0 deletions Number_Of_Passengers.sql
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WITH CTE AS (
SELECT p.passenger_id,p.arrival_time,min(b.arrival_time) as b_time from passengers p inner join buses on p.arrival_time <= b.arrival_time group by p.passenger_id)
select b.bus_id, count(c.b_time) as passenger_cnt from buses b left join CTE c on b.arrival_time = c.b_time group by b.bus_id;