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SQL

Exame de Bronze

Twelve questions on the foundations of SQL: tables and keys, SELECT, WHERE, NULL, sorting and your first counts. Mostly you read short queries, with a few small tasks to complete or fix.

  • 12 perguntas
  • 12 min
  • Nota de aprovação 70%
  • Pelo menos 3 tarefas práticas
Conteúdo Tables and keysSELECT basicsNULL and patternsFiltering rowsSorting and DISTINCTCounting and grouping

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