WebFeb 19, 2024 · Homepage of the Professorship Technology Management of the Department of Business and Economics at the TU Dortmund University WebThorsten Kettner 1 已采納 2024-02-14 16:50:18 這是簡單的條件聚合: select category, nvl(sum(case when type = 1 then quantities end), 0) as type1, nvl(sum(case when type = 2 then quantities end), 0) as type2, nvl(sum(case when type = 3 then quantities end), 0) as type3 from mytable group by category order by category;
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WebDec 19, 2024 · Guest lecture of Dr. Thorsten Kettner (Wilo Group) As part of the lecture series "Strategic Technology & Innovation Management", Dr. Thorsten Kettner from the Wilo Group gave a guest lecture. 11/02/2024 New Publication from the TIE Insitute. The TIE ... WebDec 23, 2024 · Guest lecture of Dr. Thorsten Kettner (Wilo Group) As part of the lecture series "Strategic Technology & Innovation Management", Dr. Thorsten Kettner from the Wilo Group gave a guest lecture. 11/02/2024 New Publication from the TIE Insitute. The TIE ... teesra kalma tauheed
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WebDr. Thorsten Kettner. Wilo SE. "Our cooperation with CHINABRAND is characterized by mutual respect and appreciation. CHINABRAND's expertise is essential for us and we can … WebOn the basis of an excellent understanding of applications and customers as well as a broad technological knowledge, a practice-oriented … WebNov 11, 2024 · 1. Using SUM instead of COUNT also can give you what you want: SELECT department.name, SUM (CASE WHEN employees.id IS NOT NULL THEN 1 ELSE 0 END) AS 'employees_number' FROM department LEFT JOIN employees ON employees.department_id = department.id GROUP BY department.id, department.name; teespring vs teemill