以下SQL子句的撰写顺序表达正确的是：
A: SELECT、FROM、WHERE、GROUP BY、HAVING、ORDER BY
B: SELECT、FROM、WHERE、HAVING、GROUP BY、ORDER BY
C: SELECT、FROM、WHERE、ORDER BY、HAVING、GROUP BY
D: SELECT、FROM、ORDER BY、WHERE、GROUP BY、HAVING
A: SELECT、FROM、WHERE、GROUP BY、HAVING、ORDER BY
B: SELECT、FROM、WHERE、HAVING、GROUP BY、ORDER BY
C: SELECT、FROM、WHERE、ORDER BY、HAVING、GROUP BY
D: SELECT、FROM、ORDER BY、WHERE、GROUP BY、HAVING
举一反三
- 把查询语句的各个子句按执行的先后顺序排列，正确的是( ) A: FROM→WHERE→GROUP BY→SELECT→ORDER BY B: SELECT→FROM→WHERE→GROUP BY→ORDER BY C: WHERE→FROM→SELECT→GROUP BY→ORDER BY D: FROM→WHERE→SELECT→ORDER BY→GROUP BY
- 标准SQL基本查询模块的结构是______。 A: SELECT…FROM…ORDER BY B: SELECT…1WHERE…GROUP BY C: SELECT…WHERE…HAVING D: SELECT…FROM…WHERE
- 在SQL查询语句中以下正确的子句顺序是？ A: WHERE --- GROUP BY --- HAVING --- ORDER BY B: GROUP BY --- HAVING --- ORDER BY --- WHERE C: WHERE --- HAVING --- GROUP BY --- ORDER BY D: GROUP BY --- ORDER BY --- HAVING --- WHERE
- 在使用select语句进行数据查询时,以下说法正确的是___________ A: 必须按from…where…group…having…order顺序书写,不可以调换顺序 B: 按from…where…group…having…order顺序书写,除from外,其它可以省略 C: from、where、group、having、order各命令的顺序可以前后调整 D: from、where、group、having、order各命令,除from必须在前,其它顺序可以前后调整
- 若要求“查询选修了3门以上课程的学生的学号”,正确的SQL语句是( ) A: SELECT sNo FROM SC GROUP BY sNo WHERE COUNT(*)> 3 B: SELECT sNo FROM SC GROUP BY sNo HAVING COUNT(*)> 3 C: SELECT sNo FROM SC ORDER BY sNo WHERE COUNT(*)> 3 D: SELECT sNo FROM SC ORDER BY sNo HAVING COUNT(*)> 3