题目
A.good or poor behavior
B.productivity
C.knowledge
D.quality
第1题
To download a file from a remote FTP server, you can ().
A、type"ftp"at the command prompt
B、type "ftp" in brower's address column
C、click on the FTP icon to see if the client is present
D、All above
第3题
第4题
A.ALTER TABLE … … ALTER COLUMN…
B.ALTER TABLE … MODIFY COLUMN…
C.ALTER TABLE … change COLUMN…
D.ALTER TABLE … MODIFY 或 change COLUMN…
第5题
A.ALTER TABLE … … ALTER COLUMN
B.ALTER TABLE … MODIFY COLUMN…
C.ALTER TABLE … UPDATE …
D.ALTER TABLE … UPDATE COLUMN…
第6题
A.A check constraint on the EMPLOYEE table
B.A unique constraint on the EMPLOYEE table WORKDEPT column
C.A foreign key reference from the DEPARTMENT tables DEPTNO column to the WORKDEPT column of the EMPLOYEE table
D.A foreign key reference from the EMPLOYEE tables WORKDEPT column to the DEPTNO column of the DEPARTMENT table
第7题
A.Drop column 列名
B.Delete column 列名
C.Alter table 表名 Drop column 列名
D.Alter table 表名 Delete column 列名
第8题
A.ALTER TABLE Reader DROP COLUMN E-mail
B.DROP COLUMN E-mail
C.use table Reader DROP COLUMN E-mail
D.其余选项全错
第9题
A.alter table 成绩表 delete column column_a
B.alter table 成绩表 drop column column_a
C.update table 成绩表 delete column column_a
D.update table 成绩表 drop column column_a
第11题
wers on the ANSWER SHEET. Note that there are more descriptions or explanations than necessary.
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