SQL
Examen de Bronce
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 preguntas
- 12 minutos
- Nota mínima 70 %
- Al menos 3 tareas prácticas
Temas Tables and keysSELECT basicsNULL and patternsFiltering rowsSorting and DISTINCTCounting and grouping
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