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dragonbs

Countries Without any Mountains

Sep 28th, 2023
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T-SQL 0.16 KB | None | 0 0
  1. SELECT COUNT(c.[CountryCode]) AS [Count]
  2. FROM [Countries] c
  3. LEFT JOIN [MountainsCountries] mc ON c.[CountryCode] = mc.[CountryCode]
  4. WHERE mc.[MountainId] IS NULL
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