修改student表中学号为2015001的学生的姓名为“张三” A: update student set sname=’ 张三’ where sid=’2015001’ B: alter table student alter sname=’ 张三’ where sid=’2015001 C: update student set sname=”张三” where sid=’2015001’ D: update student set sname=张三 where sid=’2015001’
修改student表中学号为2015001的学生的姓名为“张三” A: update student set sname=’ 张三’ where sid=’2015001’ B: alter table student alter sname=’ 张三’ where sid=’2015001 C: update student set sname=”张三” where sid=’2015001’ D: update student set sname=张三 where sid=’2015001’
修改student表中学号为2015001的学生的姓名为“张三”,语句是()。 A: update student set sname=’ 张三’ where sid=’2015001’ B: update student set sname=张三 where sid=’2015001’ C: update student set sname=”张三” where sid=’2015001’ D: alter table student alter sname=’ 张三’ where sid=’2015001’
修改student表中学号为2015001的学生的姓名为“张三”,语句是()。 A: update student set sname=’ 张三’ where sid=’2015001’ B: update student set sname=张三 where sid=’2015001’ C: update student set sname=”张三” where sid=’2015001’ D: alter table student alter sname=’ 张三’ where sid=’2015001’
已知一张表student存储在HBase中,查找student表中id:2015001的{score:math}成绩,其id作为行键,正确的命令是 A: get 'student', '2015001', 'score:math B: get 'student', '2015001', {COLUMN=>'score:math'} C: get 'student', '2015001', {COLUMN='score:math'} D: get 'student', '2015001', {'score:math'}
已知一张表student存储在HBase中,查找student表中id:2015001的{score:math}成绩,其id作为行键,正确的命令是 A: get 'student', '2015001', 'score:math B: get 'student', '2015001', {COLUMN=>'score:math'} C: get 'student', '2015001', {COLUMN='score:math'} D: get 'student', '2015001', {'score:math'}
中国大学MOOC: 已知一张表student存储在HBase中,向表中插入一条记录{id:2015001,name:Mary,{score:math}:88},其id作为行键,其中,在插入数学成绩88分时,正确的命令是
中国大学MOOC: 已知一张表student存储在HBase中,向表中插入一条记录{id:2015001,name:Mary,{score:math}:88},其id作为行键,其中,在插入数学成绩88分时,正确的命令是