Evaluate this SQL statement:e.employee_id, (.15* e.salary) + (.5 * e.commission_pct)+ (s.sales_amount * (.35 * e.bonus)) AS CALC_VALUEFROM employees e, sales sWHERE e.employee_id = s.emp_id;What will happen if you remove all the parentheses from the calcu

题目

Evaluate this SQL statement:e.employee_id, (.15* e.salary) + (.5 * e.commission_pct)+ (s.sales_amount * (.35 * e.bonus)) AS CALC_VALUEFROM employees e, sales sWHERE e.employee_id = s.emp_id;What will happen if you remove all the parentheses from the calculation?（）

A.The value displayed in the CALC_VALUE column will be lower.

B.The value displayed in the CALC_VALUE column will be higher.

C.There will be no difference in the value displayed in the CALC_VALUE column.

D.An error will be reported.

相似考题

1.The PRODUCTS table has these columns:PRODUCT_ID NUMBER(4)PRODUCT_NAME VARCHAR2(45)PRICE NUMBER(8,2)Evaluate this SQL statement:SELECT *FROM PRODUCTSORDER BY price, product _ name;What is true about the SQL statement? （）A. The results are not sorted.B. The results are sorted numerically.C. The results are sorted alphabetically.D. The results are sorted numerically and then alphabetically.

2.Evaluate this SQL statement:SELECT e.employee_id, (.15* e.salary) + (.5 * e.commission_pct) + (s.sales amount * (.35 * e.bonus)) AS CALC_VALUEFROM employees e, sales sWHERE e.employee_id = s.emp_id;What will happen if you remove all the parentheses from the calculation? （）A. The value displayed in the CALC_VALUE column will be lower.B. The value displayed in the CALC_VALUE column will be higher.C. There will be no difference in the value displayed in the CALC_VALUE column.D. An error will be reported.

3.Evaluate the SQL statement:SELECT LPAD (salary,10,*)FROM EMPWHERE EMP _ ID = 1001;If the employee with the EMP_ID 1001 has a salary of 17000, what is displayed?()A. 17000.00B. 17000*****C. ****170.00D. **17000.00E. an error statement

4.Evaluate this SQL statement: SELECT e.EMPLOYEE_ID,e.LAST_NAME,e.DEPARTMENT_ID, d.DEPARTMENT_NAME FROM EMP e, DEPARTMENT d WHERE e.DEPARTMENT_ID = d.DEPARTMENT_ID; In the statement, which capabilities of a SELECT statement are performed?（）A. Selection, projection, joinB. Difference, projection, joinC. Selection, intersection, joinD. Intersection, projection, joinE. Difference, projection, product

更多“Evaluate this SQL statement:e.employee_id, (.15* e.salary) ＋ (.5 * e.commission_pct)＋ (s.s ”相关问题

  • 第1题：

    Evaluate this SQL statement: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


    参考答案：A

  • 第2题：

    Evaluate the SQL statement:What will be displayed?()

    A. 0

    B. 1

    C. 0.00

    D. An error statement


    参考答案：A

  • 第3题：

    Evaluate the set of SQL statements:What is true about the set?()

    A. The DESCRIBE DEPT statement displays the structure of the DEPT table.

    B. The ROLLBACK statement frees the storage space occupies by the DEPT table.

    C. The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist.

    D. The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.


    参考答案：A

  • 第4题：

    Click the Exhibit button to examine the data of the EMPLOYEES table. Evaluate this SQL statement:SELECT e.employee_id "Emp_id", e.emp_name "Employee", e.salary, m.employee_id "Mgr_id", m.emp_name "Manager"FROM employees e JOIN employees m ON (e.mgr_id = m.employee_id)AND e.salary > 4000;What is its output?（）

    A.A

    B.B

    C.C

    D.D

    E.E


    参考答案：A

  • 第5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?（）

    • A、17000.00
    • B、17000*****
    • C、****170.00
    • D、**17000.00
    • E、an error statement

    正确答案:E

  • 第6题：

    Evaluate the SQL statement: SELECT ROUND(TRUNC(MOD(1600,10),-1),2) FROM dual; What will be displayed?（）

    • A、0
    • B、1
    • C、0.00
    • D、An error statement

    正确答案:A

  • 第7题：

    单选题
    Evaluate this SQL statement: SELECT e.EMPLOYEE_ID,e.LAST_NAME,e.DEPARTMENT_ID, d.DEPARTMENT_NAME FROM EMP e, DEPARTMENT d WHERE 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


    正确答案： A
    解析： 暂无解析

  • 第8题：

    多选题
    Evaluate the SQL statement: TRUNCATE TABLE DEPT;Which three are true about the SQL statement? （）
    A

    It releases the storage space used by the table.

    B

    It does not release the storage space used by the table.

    C

    You can roll back the deletion of rows after the statement executes.

    D

    You can NOT roll back the deletion of rows after the statement executes.

    E

    An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.

    F

    You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table.


    正确答案： A,D,F
    解析： 暂无解析

  • 第9题：

    单选题
    Evaluate this SQL statement: SELECT e.employee_id, (.15* e.salary) + (.5 * e.commission_pct) + (s.sales_amount * (.35 * e.bonus)) AS CALC_VALUE FROM employees e, sales s WHERE e.employee_id = s.emp_id; What will happen if you remove all the parentheses from the calculation?（）
    A

    The value displayed in the CALC_VALUE column will be lower.

    B

    The value displayed in the CALC_VALUE column will be higher.

    C

    There will be no difference in the value displayed in the CALC_VALUE column.

    D

    An error will be reported.


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    Evaluate the SQL statement: SELECT ROUND(TRUNC(MOD(1600,10),-1),2) FROM dual; What will be displayed?（）
    A

    0

    B

    1

    C

    0.00

    D

    An error statement


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    Evaluate this SQL statement: SELECT e.employee_id, (.15* e.salary) + (.5 * e.commission_pct) + (s.sales amount * (.35 * e.bonus)) AS CALC_VALUE FROM employees e, sales s WHERE e.employee_id = s.emp_id; What will happen if you remove all the parentheses from the calculation? （）
    A

    The value displayed in the CALC_VALUE column will be lower.

    B

    The value displayed in the CALC_VALUE column will be higher.

    C

    There will be no difference in the value displayed in the CALC_VALUE column.

    D

    An error will be reported.


    正确答案： D
    解析： 暂无解析

  • 第12题：

    多选题
    Evaluate the SQL statement DROP TABLE DEPT: Which four statements are true of the SQL statement? （）
    A

    You cannot roll back this statement.

    B

    All pending transactions are committed.

    C

    All views based on the DEPT table are deleted.

    D

    All indexes based on the DEPT table are dropped.

    E

    All data in the table is deleted, and the table structure is also deleted.

    F

    All data in the table is deleted, but the structure of the table is retained.

    G

    All synonyms based on the DEPT table are deleted.


    正确答案： A,B,D,E
    解析： 暂无解析

  • 第13题：

    Evaluate these two SQL statements:What is true about them?()

    A. The two statements produce identical results.

    B. The second statement returns a syntax error.

    C. There is no need to specify DESC because the results are sorted in descending order by default.

    D. The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.


    参考答案：A

  • 第14题：

    Examine the structure of the EMPLOYEES and DEPARTMENTS tables:Evaluate this SQL statement:Which SQL statement is equivalent to the above SQL statement?()

    A.

    B.

    C.

    D.


    参考答案：C

  • 第15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


    参考答案：A

  • 第16题：

    Click the Exhibit button to examine the data of the EMPLOYEES table.Which statement lists the ID, name, and salary of the employee, and the ID and name of the employee‘s manager, for all the employees who have a manager and earn more than 4000?（）

    A.SELECT employee_id "Emp_id", emp_name "Employee", salary, employee_id "Mgr_id", emp_name "Manager" FROM employees WHERE salary > 4000;

    B.SELECT e.employee_id "Emp_id", e.emp_name "Employee", e.salary, m.employee_id "Mgr_id", m.emp_name "Manager" FROM employees e JOIN employees m WHERE e.mgr_id = m.mgr_id AND e.salary > 4000;

    C.SELECT e.employee_id "Emp_id", e.emp_name "Employee", e.salary, m.employee_id "Mgr_id", m.emp_name "Manager" FROM employees e JOIN employees m ON (e.mgr_id = m.employee_id) AND e.salary > 4000;

    D.SELECT e.employee_id "Emp_id", e.emp_name "Employee", e.salary, m.mgr_id "Mgr_id", m.emp_name "Manager" FROM employees e SELF JOIN employees m WHERE e.mgr_id = m.employee_id AND e.salary > 4000;

    E.SELECT e.employee_id "Emp_id", e.emp_name "Employee", e.salary, m.mgr_id "Mgr_id" m.emp_name "Manager" FROM employees e JOIN employees m USING (e.employee_id = m.employee_id) AND e.salary > 4000;


    参考答案：C

  • 第17题：

    Evaluate the SQL statement:TRUNCATE TABLE DEPT;Which three are true about the SQL statement? （）

    • A、It releases the storage space used by the table.
    • B、It does not release the storage space used by the table.
    • C、You can roll back the deletion of rows after the statement executes.
    • D、You can NOT roll back the deletion of rows after the statement executes.
    • E、An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.
    • F、You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table

    正确答案:A,D,F

  • 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?（）

    • A、17000.00
    • B、17000*****
    • C、****170.00
    • D、**17000.00
    • E、an error statement

    正确答案:D

  • 第19题：

    单选题
    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?（）
    A

    17000.00

    B

    17000*****

    C

    ****170.00

    D

    **17000.00

    E

    an error statement


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    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?（）
    A

    17000.00

    B

    17000*****

    C

    ****170.00

    D

    **17000.00

    E

    an error statement


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    Evaluate this SQL statement: SELECT e.EMPLOYEE_ID,e.LAST_NAME,e.DEPARTMENT_ID, d.DEPARTMENT_NAME FROM EMP e, DEPARTMENT d WHERE 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


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    The PRODUCTS table has these columns: PRODUCT_ID NUMBER(4) PRODUCT_NAME VARCHAR2(45) PRICE NUMBER(8,2) Evaluate this SQL statement: SELECT * FROM PRODUCTS ORDER BY price, product _ name; What is true about the SQL statement? （）
    A

    The results are not sorted.

    B

    The results are sorted numerically.

    C

    The results are sorted alphabetically.

    D

    The results are sorted numerically and then alphabetically.


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    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?（）
    A

    17000.00

    B

    17000*****

    C

    ****170.00

    D

    **17000.00

    E

    an error statement


    正确答案： A
    解析： 暂无解析

  • 第24题：

    单选题
    Evaluate these two SQL statements: What is true about them?（）
    A

    The two statements produce identical results.

    B

    The second statement returns a syntax error.

    C

    There is no need to specify DESC because the results are sorted in descending order by default.

    D

    The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.


    正确答案： D
    解析： 暂无解析

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