A: groupmod -n 1050 student
B: groupadd -n 1050 student
C: groupmod -g 1050 student
D: groupdel -g 1050 student
举一反三
- 陶器的烧制温度一般在（）。 A: A820℃--1050℃ B: B830℃--1050℃ C: C840℃--1050℃ D: D850℃--1050℃
- 纤维成品使用包装袋（上盖）尺寸为（） A: 1050*600*200mm B: 1150*600*200mm C: 1050*600*400mm D: 1050*400*200mm
- 删除student表中id为1的记录（） A: TRUNCATE FROM student where id=1; B: DELETE student where id=1; C: DELETE FROM student where id=1; D: DELETE INTO student where id=1;
- 【单选题】使用命令添加用户student,设置密码为student,然后使用命令删除该用户。 A. useradd student passwd student userdel student B. useradd student passwd student sudo userdel student C. useradd student sudo passwd student sudo userdel student D. su root useradd student passwd student userdel student
- 删除student表中id为1的记录，下列语句正确的是 A: DELETE student WHERE id=1; B: DELETE FROM student WHERE id=1; C: DELETE FROM student WHERE id:=1; D: DELETE student WHERE id:=1;
内容
- 0
烧结过程中，燃烧带温度可达（）。 A: 1050~1050℃ B: 1200~1500℃ C: 1550~1650 D: 1700~1800℃
- 1
在Linux环境下,将当前目录下的文件file的所属组改为student的命令是( ) A: chown student file B: chmod<br/>student file C: chown<br/>.student file D: chgrp<br/>student file E: chgrp<br/>.student file
- 2
创建数据表student的SQL语句为（） A: CREATE DATABASE student B: CREATE VIEW student C: CREATE PROCEDURE student D: CREATE TABLE student
- 3
下面用于查询student表中id值在1,2,3范围内的记录的SQL语句是（ ）。 A: SELECT * FROM student WHERE id=1,2,3; B: SELECT * FROM student WHERE (id=1,id=2,id=3); C: SELECT * FROM student WHERE id in (1,2,3); D: SELECT * FROM student WHERE id in 1,2,3;
- 4
授予用户Mary可以修改Student表的权限,使用的SQL语句是( )。 A: GRANT UPDATE ON<br/>Student TO Mary B: GRANT UPDATE ON<br/>Mary TO Student C: GRANT UPDATE TO<br/>Mary ON Student D: GRANT UPDATE TO<br/>Student ON Mary