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SQL

铜牌考试

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 道题
  • 12 分钟
  • 及格线 70%
  • 至少 3 道实操题
考查范围 Tables and keysSELECT basicsNULL and patternsFiltering rowsSorting and DISTINCTCounting and grouping

计时只是陪着你，时间到了也不会中断。