Question 12Assume customernumber is the primary key. The command to remove all the rows from a table 'CUSTOMER' is:(Choose the best option)a. DROP FROM CUSTOMERS;b. DELETE * FROM CUSTOMER;c. DELETE FROM CUSTOMERS;O d. DELETE FROM CUSTOMER WHERE customernumber IS NULL:

Command to remove all the rows from a table 'CUSTOMER' is: c. DELETE FROM CUSTOMERS; This query will…

Assume customernumber is the primary key. The command to remove all the rows from a table 'CUSTOMER' is: (Choose the best option) O a. DROP FROM CUSTOMERS; Ob. DELETE * FROM CUSTOMER; O. DELETE FROM CUSTOMERS; d. DELETE FROM CUSTOMER WHERE customernumber IS NULL:

Assume customernumber is the primary key. The command to remove all the rows from a table 'CUSTOMER' is: (Choose the best option) O a. DROP FROM CUSTOMERS; Ob. DELETE * FROM CUSTOMER; O. DELETE FROM CUSTOMERS; d. DELETE FROM CUSTOMER WHERE customernumber IS NULL:

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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//stored procedure create or replace procedure firstthree (my_seqid in varchar2) as cursor c1 is select sname, grade from student s join taken t on s.sid=t.sid where seqid=my_seqid order by grade desc; -- my_sname varchar2(40); my_sname student.sname%TYPE; -- my_grade number(2,1); my_grade taken.grade%TYPE; begin /* clear the my_tmp table */ delete from my_tmp; commit; open c1; for i in 1..3 loop fetch c1 into my_sname, my_grade; exit when c1%notfound; /* in case the number requested */ /* is more than the total */ /* number of enrolled students */ /* display the result */ dbms_output.put_line('name: ' || my_sname || ' ' || 'grade: ' || my_grade); /* put into temporary table */ insert into my_tmp values(my_sname, my_grade); commit; end loop; close c1; end; / -------------- //php <? $connection = oci_connect ("test", "test", "test"); if ($connection == false){ $e = oci_error();…
with it, paste your code in a text file named Student.txt and save it in your task folder. Write the SQL code to create a table called Student. The table structure is summarised in the table below (Note that STU_NUM is the primary key): STU_NUM Attribute Name STU_SNAME STU_FNAME STU_INITIAL STU_STARTDATE COURSE_CODE PROJ_NUM STU STU_S STU_F STU_INITIAL NUM NAME NAME 01 02 Snow John E CHAR(6) After you have created the table in question 1, write the SQL code to enter the first two rows of the table as below: Stark Arya с VARCHAR(15) VARCHAR(15) CHAR(1) DATE CHAR(3) INT(2) Data Type STU_STARTDATE COURSE_ PROJ_ CODE NUM 05-Apr-14 12-Jul-17 201 305 6 11 Assuming all the data in the Student table has been entered as shown below, write the SQL code that will list all attributes for a COURSE_CODE of 305.
Write a SELECT statement that returns all rows with salary, last name, street address and ZIP code (SALARY, LAST_NAME, STREET, ZIP_CODE) from the EMPLOYEE and ADDRESS tables, sorted by SALARY from largest to smallest. STREET and ZIP_CODE are in the ADDRESS table, while the other fields are in the EMPLOYEE table. The common key is EMPLOYEE_ID.
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Write a ASQ statement to return to see all of the first names in the People table. SELECT first name FROM people; WHERE FROM People first name; FROM People SELECT first_name; First name WHERE FROM People;
Write a SELECT statement that uses the ranking functions to rank products by the total quantity sold. Return these columns: The product_name column from the Products table A column named total_quantity that shows the sum of the quantity for each product in the Order_Items table A column named rank that uses the RANK function to rank the total quantity in descending sequence A column named dense_rank that uses the DENSE_RANK function to rank the total quantity in descending sequence
E MyS Mura 04- S Visu: Blac 9 Sign N Hom MyS y goog y! Exer SN c.blackboard.com/ultra/courses/_207342_1/cl/outline Completion Your answers are saved automatically. * Question Completion Status: QUESTION 1 Exercise: Create a statement that will make a copy of the vendors table. The name of the copy should be vendors QUESTION 2 Exercise: Create a statement that will delete the vendors archive table you created in the previous exercise. QUESTION 3 Exercise: Create a statement that will add the following row to the vendor_contact table Click Save and Submit to save and submit. Click Save All Answers to save all answers.
The following statements are executed by the given order. create table book (book_id number primary key, book_name varchar2(32) not null, book_isbn varchar2(13) not null); insert into book values (123, 'My first book', 1234); What is the outcome ? The table BOOK is created and a row is inserted. The table BOOK is created and a row NOT is inserted. The table BOOK NOT is created and a row is inserted. The table BOOK NOT is created and a row is NOTinserted.
Query 3: Write a parameter query to display the names of all prospects each member tried to recruit based on the member’s first name and the member’s last name you input. List the member’s First Name, member’s Last Name, prospect’s First Name, and prospect’s Last Name (in this order in the query grid). Display the member’s First Name Heading as Member First Name, member’s Last Name Heading as Member Last Name, prospect’s first name heading as Prospect First Name, and prospect’s last name heading as Prospect Last Name. Sort the list by Member Last Name, Member First Name, Prospect Last Name, and Prospect First Name, all ascending order. (WE ARE USING ACCESS SO I AM JUST TRYING TO UNDERSTAND WHAT TO PUT AND PLUG IN ETC. USE MY PICTURES AS REFERRENCE!)
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Task 12: When deleting a customer, subtract the balance multiplied by the sales rep’s commission rate from the commission for the corresponding sales rep.