SQL Server How do I do multiple counts for each distinct manager ID? [closed]

avkwfej4 于 2023-11-16 发布在其他

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I just need to figure out how to count the number of buildings each manager manages. I think I just need help for the syntax.

-- 5.2.10 Display the MFName, MLName, MSalary, MBdate, and number of buildings that the manager manages for all managers with a salary less than $55,000 

Select MFName, MLName, MSalary, MBDate,     
COUNT(BuildingID) as NoOfBuildManaged    
From Manager, Building
Where Manager.ManagerID = Building.BManagerID    
AND MSalary < 55000    
Group By ManagerID;

sql-server

来源：https://stackoverflow.com/questions/77471187/how-do-i-do-multiple-counts-for-each-distinct-manager-id

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按热度按时间

ie3xauqp1#

WITH
  building_count AS
(
  SELECT
    BManagerID,
    COUNT(*) AS NoOfBuildManaged
  FROM
    Building
  GROUP BY
    BManagerID
)
SELECT
  m.MFName,
  m.MLName,
  m.MSalary,
  m.MBDate,     
  b.NoOfBuildManaged    
FROM
  Manager          AS m
INNER JOIN
  building_count   AS b
    ON m.ManagerID = b.BManagerID    
WHERE
  m.MSalary < 55000    
;

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SQL Server How do I do multiple counts for each distinct manager ID? [closed]

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