在SQL SRVER中，查询STUDENT1表中GJ大于等于300的男生，则SQL语句应为______ A: SELECT * FROM STUDENT1 WHERE CJ＞300 AND XB="男" B: SELECT * FROM STUDENT1 WHERE CJ＞=300 C: SELECT * FROM STUDENT1 WHERE CJ＞=300 AND XB="男" D: 以上都不是

 以下语句不正确的是(     ) A: select * from emp B: select ename,hiredate,sal from emp C: select * from emp order deptno D: select * from where deptno=1 and sal<300

Savina300select较classic增加了以下哪项功能（） A: Otherapy B: Autoflow C: PC-AC D: PC-APRV

查询各类别的公司中比该类别最小工资高300元的公司、工资、类别 A: SELECT name, salary, type FROM job AS s1 WHERE salary &gt; (SELECT min(salary) FROM job AS s2 WHERE s1.type = s2.type GROUP BY type) ; B: SELECT name, salary, type FROM job AS s1 WHERE salary &gt; (SELECT min(salary) FROM job AS s2 WHERE s1.type = s2.type ) + 300; C: SELECT name, salary, type FROM job WHERE salary &gt; 300; D: SELECT name, salary, type FROM job AS s1 WHERE salary &gt; (SELECT min(salary) FROM job AS s2 WHERE s1.type = s2.type GROUP BY type) + 300;

下列选项中,用于将 student 表按照 gender 字段进行分组查询,并且查询 score 字段值之和小于300的分组的 SQL 语句是 A: SELECT gender , SUM ( score ) FROM student GROUP BY gender HAVING SUM ( score )<;300; B: SELECT gender , SUM ( score ) FROM student GROUP BY gender WHERE SUM ( score )300; C: SELECT gender , SUM ( score ) FROM student WHERE SUM ( score )<;300 GROUP BY gender ; D: 以上语句都不对

Savina呼吸机背部空气过滤棉需要定期清洗，清洗一次周期为______周，更换周期为（） A: 1周、半年 B: 2周、半年 C: 3周、一年 D: 4周、一年

SELECT语句至少包含的部分是： A: 、仅SELECT B: SELECT,FROM C: 、SELECT,GROUP D: SELECT,INTO

select语句的完整语法较复杂，但至少包括的部分是（ ）。A. 仅selectB. select, from C. select, groupD. select,where A: 仅select B: select, from C: select, group D: select,where

下列命令不能执行的是（）。 A: SELECT*FROM[select] B: SELECT*FROM@MyTable C: SELECT*FROM[MyTable] D: SELECT*FROMMyTable

要在Statement对象stmt上执行SELECT语句“select*fromAddress”,可以使用________。 A: stmt.execute("select*fromAddress"); B: stmt.executeQuery("select*fromAddress"); C: stmt.executeUpdate("select*fromAddress"); D: stmt.query("select*fromAddress");