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-- replace 0 didalem salary karna itu typo
-- lalu masukin itu kedalam rata-rata
-- setelah itu buat avg salary tanpa replace
-- lalu panggil ceil buat pembulatan keatas
select ceil(avg(salary)-avg(replace(salary, 0, '')))
from employees;
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The Blunder
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-- replace 0 didalem salary karna itu typo -- lalu masukin itu kedalam rata-rata -- setelah itu buat avg salary tanpa replace -- lalu panggil ceil buat pembulatan keatas select ceil(avg(salary)-avg(replace(salary, 0, ''))) from employees;