• 2022-06-07 问题

    数据库中有一张表名称为Student,有列Number,Name,Age,IDCard,Sex。主键为Number。要求查询所有男同学信息,下列哪个SQL语句是正确的?() A: ASelect* From Student Where Sex=’男’ B: BSelect* From Student Where Number NotIn(Select Number From Student Where Sex<>=’男’) C: CSelect* From Student Where NumberIn(Select Numbe rFrom Student Where Sex=’男’) D: DSelect* From Student Where Sex<>’男’

    数据库中有一张表名称为Student,有列Number,Name,Age,IDCard,Sex。主键为Number。要求查询所有男同学信息,下列哪个SQL语句是正确的?() A: ASelect* From Student Where Sex=’男’ B: BSelect* From Student Where Number NotIn(Select Number From Student Where Sex<>=’男’) C: CSelect* From Student Where NumberIn(Select Numbe rFrom Student Where Sex=’男’) D: DSelect* From Student Where Sex<>’男’

  • 2022-06-07 问题

    数据库中有一张表名称为Student,有列Number,Name,Age,IDCard,Sex。主键为Number。要求查询所有男同学信息,下列哪个SQL语句是正确的?() A: Select* From Student Where Sex=’男’ B: Select* From Student Where Number NotIn(Select Number From Student Where Sex<>=’男’) C: Select* From Student Where NumberIn(Select Numbe rFrom Student Where Sex=’男’) D: Select* From Student Where Sex<>’男&rsquo

    数据库中有一张表名称为Student,有列Number,Name,Age,IDCard,Sex。主键为Number。要求查询所有男同学信息,下列哪个SQL语句是正确的?() A: Select* From Student Where Sex=’男’ B: Select* From Student Where Number NotIn(Select Number From Student Where Sex<>=’男’) C: Select* From Student Where NumberIn(Select Numbe rFrom Student Where Sex=’男’) D: Select* From Student Where Sex<>’男&rsquo

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