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神州数码程序类笔试题和面试题答案分享

更新:2023-09-14 22:11:44 高考升学网

神州程序类笔试题分享:

神州数码笔试1)description of the students table:

sid_id number

start_date date

end_date date

which two function are valid on the start_date column?_________。

A。 sum(start_date)

B。 avg(start_date)

C。 count(start_date)

D。 avg(start_date,end_date)

E。 min(start_date)

F。 maximum(start_date)

神州数码笔试2)for which two constraints does the oracle server implicitly create a unique index?______。

A。 not null

B。 primary

C。 foreign key

D。 check

E。 unique

神州数码笔试3)Which statement shows the maximum salary paid in each job category of each department?_______

A。 select dept_id, job_cat,max(salary) from employees where salary > max(salary);

B。 select dept_id, job_cat,max(salary) from employees group by dept_id,job_cat;

C。 select dept_id, job_cat,max(salary) from employees;

D。 select dept_id, job_cat,max(salary) from employees group by dept_id;

E。 select dept_id, job_cat,max(salary) from employees group by dept_id,job_cat,salary;

神州数码笔试4)in a select statement that includes a where clause,where is the group by clause placed in the select statement?______。

A。 immediately after the select clause

B。 before the where clause

C。 before the from clause

D。 after the order by clause

E。 after the where clause

神州数码笔试5)in a select statement that includes a where clause,where is the order by clause placed in the select statement?______。

A。immediately after the select clause

B。before the where clause

C。after all clause

D。after the where clause

E。before the from clause

神州数码笔试6)evaluate there two sql statements______。

Select last_name,salary from employees order by salary;

Select last_name,salary from employees order by 2 asc;

A。the same result B。different result C。the second statement returns a syntax error

神州数码笔试7) you would like to display the system date in the format“20051110 14:44:17”。Which select statement should you use?______。

A。 select to_date(sydate,’yearmmdd hh:mm:ss’)from dual;

B。 select to_char(sydate,’yearmonthday hh:mi:ss’)from dual;

C。 select to_date(sydate,’yyyymmdd hh24:mi:ss’)from dual;

D。 select to_char(sydate,’yyyymmdd hh24:mi:ss’)from dual;

E。 select to_char(sydate,’yy-mm-dd hh24:mi:ss’)from dual;

神州数码笔试8)which select statement will the result ‘ello world’from the string‘Hello world’?______。

A。 select substr(‘Hello World’,1)from dual;

B。 select substr(trim(‘Hello World’,1,1))from dual;

C。 select lower(substr(‘Hello World’,1))from dual;

D。 select lower(trim(‘H’from‘Hello World’))from dual;

神州数码笔试9)Select 语句中用来连接字符串的符号是___C___。

A。 “+” B。 “&” C。“||” D。“|”

神州数码笔试10)which are DML statements(choose all that apply)______。

A。commit B。merge C。update D。delete E。creat F。drop

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