• 2022-07-24
    删除课程号为s5的课程记录,使用SQL语句:delete course cno="s5";
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      删除“课程基本情况”表中,课程名为“Java”的记录,正确的SQL语句是( )。 A: Delete From 课程基本情况 Where 课程名=“Java " B: Delete From 课程基本情况 Where 课程名= Java C: Delete 课程基本情况 Where 课程名=“Java " D: Delete 课程基本情况 Where 课程名= Java

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      删除“课程基本情况”表中,课程名为“Python”的记录,正确的SQL语句是( )。 A: Delete From 课程基本情况 Where 课程名=“Python B: Delete From 课程基本情况 Where 课程名=Python C: Delete 课程基本情况 Where 课程名=“Python D: Delete 课程基本情况 Where 课程名=Python

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      使用SQL语句将学生表S中年龄(AGE)大于30岁的记录删除,正确的命令是() A: DELETE FOR AGE>30 B: DELETE FROM S WHERE AGE>30 C: DELETE S FOR AGE>30 D: DELETE S WHERE AGE>30

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      用SQL语句进行记录的删除操作,使用DELETE语句。()

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      若S5为8位标准逻辑位矢量,现有语句“S4<=S5(7 DOWNTO 5)”,则S4是(    )位的标准逻辑位矢量。