若某SELECT命令中同时有FROM、WHERE、ORDER三个子句,则正确的排列顺序是()。
A: FRO
B: WHER
C: ORDER
D: FRO
E: ORDE
F: WHERE
G: WHER
H: ORDE
I: FROM
J: 没有顺序要求,无论哪个子句排在前面均可
A: FRO
B: WHER
C: ORDER
D: FRO
E: ORDE
F: WHERE
G: WHER
H: ORDE
I: FROM
J: 没有顺序要求,无论哪个子句排在前面均可
举一反三
- 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
- 标准SQL基本查询模块的结构是 A: SELEC . . FRO . . ORDER BY B: SELEC . . WHER . . GROUP BY C: SELEC . . WHER . . HAVING D: SELEC . . FRO . . WHER
- 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
- 下列语句中正确的是() A: DELETE < > [WHERE 筛选条件] [ORDER BY 子句] [LIMIT 子句] B: DELETE [WHERE 筛选条件] [ORDER BY 子句] [LIMIT 子句] C: DELETE [ORDER BY 子句] D: DELETE FROM < > [WHERE 筛选条件] [ORDER BY 子句] [LIMIT 子句]
- 下列哪个子句在SELECT语句中用于排序结果集 A: HAVING子句 B: WHERE子句 C: FROM子句 D: ORDER BY子句