Problems are based on the following query: SELECT                                  P_CODE, SUM(LINE_UNITS) FROM                                    LINE GROUP BY                           P_CODE HAVING                               SUM(LINE_UNITS) > (SELECT MAX(LINE_UNITS) FROM LINE); Should you create an index on P_CODE? If so, write the SQL command to create the index. If not, explain your reasoning.

use oracle sql developper or Oracle sql developper  problem in picture the database CREATE TABLE MEMBERSHIP( MEM_NUM CHAR(3) CONSTRAINT MEMBER_MEM_NUM_PK PRIMARY KEY,MEM_FNAME VARCHAR(30) NOT NULL,MEM_LNAME VARCHAR(30) NOT NULL,MEM_STREET VARCHAR(15),MEM_CITY VARCHAR(10),MEM_STATE CHAR(2),MEM_ZIP CHAR(5),MEM_BALANCE NUMBER (2)); ALTER TABLE MEMBERSHIPMODIFY MEM_STREET VARCHAR(25);CREATE TABLE RENTAL( RENT_NUM CHAR(4) CONSTRAINT RENTAL_RENT_NUM_PK PRIMARY KEY,RENT_DATE DATE,MEM_NUM CHAR(3),CONSTRAINT RENTAL_MEM_NUM_FK FOREIGN KEY (MEM_NUM) REFERENCES MEMBERSHIP); CREATE TABLE PRICE(PRICE_CODE CHAR(1) CONSTRAINT PRICE_PRICE_CODE_PK PRIMARY KEY,PRICE_DESC VARCHAR(20),PRICE_RENTFEE NUMBER (3,1),PRICE_DAILYATFEE NUMBER(3,1)); CREATE TABLE MOVIE(MOVIE_NUM CHAR(4) CONSTRAINT MOVIE_MOVIE_NUM_PK PRIMARY KEY,MOVIE_NAME VARCHAR(30) NOT NULL,MOVIE_YEAR CHAR(4),MOVIE_COST NUMBER(5,2),MOVIE_GENRE VARCHAR(15),PRICE_CODE CHAR(1),CONSTRAINT MOVIE_PRICE_CODE_FK FOREIGN KEY (PRICE_CODE) REFERENCES…

I need to write a SELECT query in SQL using these instructions. Attached is the code that created the tables.    SHOW name-of-tech part which are less than $300 and The Name of the Supplier. This will show which supplier has what parts under $300. FOR [Supplier] QUERY WILL USE: JOIN yes SUBQUERY no AGGREGATION no

I need help with this question for my Database Management class for SQL developer. Thank you   REP (REP_NUM, LAST_NAME, FIRST_NAME, STREET, CITY, STATE, POSTAL_CODE, COMISSION, RATE) CUSTOMER (CUSTOMER_NUM, CUSTOMER_NAME, STREET, CITY, STATE, POSTAL_CODE, BALANCE, CREDIT_LIMIT, REP_NUM) ORDERS (ORDER_NUM, ORDER_DATE, CUSTOMER_NUM) ORDER_LINE (ORDER_NUM, ITEM_NUM, NUM_ORDERED, QUOTED_PRICE) ITEM (ITEM_NUM, DESCRIPTION, ON_HAND, CATEGORY, STOREHOUSE, PRICE)   Question: List TOY category items and orders placed for them.  Report:  Item_Num, Description, Order_Num, and Order_Date

My SQL WORKBENCH **Please note that you may actually use as many tables as you need. You are not limited to use only twotables.Example:SELECT *FROM DEPARTMENTS;SELECT *FROM EMPLOYEES;Now join departments and employees tables.SELECT FIRST_NAME, DEPARTMENT_NAMEFROM EMPLOYEES, DEPARTMENTSWHERE EMPLOYEES.DEPARTMENT_ID = DEPARTMENTS.DEPARTMENT_ID;NOTE: If you omit the join condition, the result will be the Cartesian Product of the two tables. A CartesianProduct joins all rows of the first table with all rows of the second table.That is if the first table has n rows and the second table has m rows, the output will have n*m rows.The following query will produce a Cartesian Product:SELECT FIRST_NAME, DEPARTMENT_NAMEFROM EMPLOYEES, DEPARTMENTS;**When table names are long, qualifying column names might be very time consuming. Usually peopleprefer to use table aliases for this purpose.Example: List the name of all employees who work for 'Purchasing' departmentSELECT E.FIRST_NAME "EMPLOYEE…