46 and 45
46 and 45.93
50 and 45.93
50 and 45.9
45 and 45.93
45.95 and 45.93
第1题:
A. 17000.00
B. 17000*****
C. ****170.00
D. **17000.00
E. an error statement
第2题:
A. 0
B. 1
C. 0.00
D. An error statement
第3题:
Evaluate this SQL statement:SELECT e.EMPLOYEE_ID,e.LAST_NAME,e.DEPARTMENT_ID, d.DEPARTMENT_NAMEFROM EMPLOYEES e, DEPARTMENTS dWHERE e.DEPARTMENT_ID = d.DEPARTMENT_ID;In the statement, which capabilities of a SELECT statement are performed?()
A.selection, projection, join
B.difference, projection, join
C.selection, intersection, join
D.intersection, projection, join
E.difference, projection, product
第4题:
Which SQL statement returns a numeric value?()
第5题:
Evaluate these two SQL statements: SELECT last_name, salary , hire_date FROM EMPLOYEES ORDER BY salary DESC; SELECT last_name, salary, hire_date FROM EMPLOYEES ORDER BY 2 DESC; What is true about them?()
第6题:
Evaluate the following query: SQL> SELECT TRUNC(ROUND(156.00,-1),-1)FROM DUAL; What would be the outcome?()
第7题:
Evaluate the SQL statement: SELECT ROUND(45.953, -1), TRUNC(45.936, 2) FROM dual; Which values are displayed? ()
第8题:
46 and 45
46 and 45.93
50 and 45.93
50 and 45.9
第9题:
17000.00
17000*****
****170.00
**17000.00
an error statement
第10题:
17000.00
17000*****
****170.00
**17000.00
an error statement
第11题:
46 and 45
46 and 45.93
50 and 45.93
50 and 45.9
45 and 45.93
45.95 and 45.93
第12题:
0
1
0.00
An error statement
第13题:
A. Selection, projection, join
B. Difference, projection, join
C. Selection, intersection, join
D. Intersection, projection, join
E. Difference, projection, product
第14题:
A.
B.
C.
D.
第15题:
Click the Exhibit button and examine the data from the ORDERS and CUSTOMERS tables.Evaluate the SQL statement:SELECT *FROM ordersWHERE cust_id = (SELECT cust_idFROM customersWHERE cust_name = ‘Smith‘);What is the result when the query is executed?()
A.A
B.B
C.C
D.D
E.E
第16题:
Evaluate the SQL statement: SELECT LPAD(salary,10,*) FROM EMP WHERE EMP_ID = 1001; If the employee with the EMP_ID 1001 has a salary of 17000, what is displayed?()
第17题:
Evaluate the SQL statement: SELECT ROUND(TRUNC(MOD(1600,10),-1),2) FROM dual; What will be displayed?()
第18题:
Evaluate the SQL statement: SELECT LPAD (salary,10,*) FROM EMP WHERE EMP _ ID = 1001; If the employee with the EMP_ID 1001 has a salary of 17000, what is displayed?()
第19题:
语句select ROUND(45.953,-1),TRUNC(45.936,2)from dual;的结果是()。
第20题:
Selection, projection, join
Difference, projection, join
Selection, intersection, join
Intersection, projection, join
Difference, projection, product
第21题:
The statement would not execute because table aliases are not allowed in the JOIN clause.
The statement would not execute because the table alias prefix is not used in the USING clause.
The statement would not execute because all the columns in the SELECT clause are not prefixed with table aliases.
The statement would not execute because the column part of the USING clause cannot have a qualifier in the SELECT list.
第22题:
16
100
160
200
150
第23题:
Selection, projection, join
Difference, projection, join
Selection, intersection, join
Intersection, projection, join
Difference, projection, product
第24题:
17000.00
17000*****
****170.00
**17000.00
an error statement