What value will return when the last SQL statement is executed?
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The following statements are executed:
create sequence my_seg;
select my_seg.nextval from dual;
select my_seg.nextval from dual;
rollback;
select my_seg.nextval from dual;
What value will return when the last SQL statement is executed?
Select one:
a. 2
b. 1
c. 3
d. 0
e. NULL
Step by step
Solved in 2 steps with 5 images
- Which of the following SQL statements is invalid and returns an error message? ALTER TABLE books ADD CONSTRAINT books_pubid_uk UNIQUE (pubid); ALTER TABLE books ADD CONSTRAINT books_pubid_pk PRIMARY KEY (pubid); ALTER TABLE books ADD CONSTRAINT books_pubid_nn NOT NULL (pubid); ALTER TABLE books ADD CONSTRAINT books_pubid_fk FOREIGN KEY (pubid) REFERENCES publisher (pubid); All of the above statements are invalid.Which of the following is a correct statement? a. A commit is issued implicitly when a user exits SQL Developer or SQLPlus. b. A commit is issued implicitly when a DDL command is executed. c. A commit is issued automatically when a DML command is executed. d. All of the above are correct. e. Both a and b are correct. f. Both a and c are correct.Given the following SQL statement, which statement is most accurate?SELECT customer# FROM customersJOIN orders USING(customer#)WHERE shipdate-orderdate IN(SELECT MAX(shipdate-orderdate) FROM ordersWHERE shipdate IS NULL);a. The SELECT statement fails and returns an Oracle error message.b. The outer query displays no rows in its results because the subquery passes a NULLvalue to the outer query.c. The customer number is displayed for customers whose orders haven’t yet shipped.d. The customer numbers of all customers who haven’t placed an order are displayed
- The following two SQL statements will produce the same results. SELECT P_DESCRIPT, P_QOH,P_PRICE FROM PRODUCT WHERE P_QOH >(SELECT P_QOH FROM PRODUCT WHERE P_CODE='11QER/31') AND P_PRICE>(SELECT P_PRICE FROM PRODUCT WHERE P_CODE='11QER/31'); SELECT P_DESCRIPT, P_QOH,P_PRICE FROM PRODUCT WHERE (P_QOH,P_PRICE) > (SELECT P_QOH,P_PRICE FROM PRODUCT WHERE P_CODE='11QER/31'); A) True B) FalseThe following two SQL statements will produce the same results. SELECT P_DESCRIPT, P_PRICE FROM PRODUCT WHERE P_CODE IN (SELECT P_CODE FROM LINE GROUP BY P_CODE HAVING COUNT(*) >=1); SELECT P_DESCRIPT, P_PRICE FROM PRODUCT WHERE EXISTS (SELECT P_CODE FROM LINE WHERE LINE.P_CODE=PRODUCT.P_CODE); Group of answer choices A) True B) FalseDatabase: CUSTOMER (CustomerID, LastName, FIrstName, Phone, EmailAddress) PURCHASE (InvoiceNumber, InvoiceDate, PreTaxAmount, CustomerID) PURCHASE_ITEM (InvoiceNumber, InvoiceLineNumber, Item Number, RetailPrice) ITEM (ItemNumber, ItemDesciption, Cost, ArtistLastName, ArtistFirstName) Write an SQL statement to show which cutomers bought which items, and include any items that have not been sold. Include CUSTOMER.LastName, CUSTOMER.FirstName, IvoiceNumber, InvoiceDate, ItemNumber, ItemDescription, ArtistLastName, and ArtistFirstName,. Use a join using JOIN ON syntax, and sort the results by ArtistLastName and ArtistFirstName in ascending order. Note that in Microsoft Access this require multiple queries. From Database Concepts 9th Ed. (Kroenke)
- Write the following SQL Statements:1. Write a SELECT statement that returns one row for each customer that has orders with these columns:->The email_address from the Customers table->A count of the number of orders->The total amount for each order (Hint: First, subtract the discount amount from the price. Then, multiply by the quantity.)->Return only those rows where the customer has more than 1 order.->Sort the result set in descending sequence by the sum of the line item amounts. Q2 7. Write a SELECT statement that returns the name and discount percent of each product that has a unique discount percent. In other words, don’t include products that have the same discount percent as another product.Which of the following SQL statements is invalid and returns an error message? ( refer to the tables in the JustLee Books database). a. ALTER TABLE books ADD CONSTRAINT books_pubid_uk UNIQUE (pubid); b. ALTER TABLE books ADD CONSTRAINT books_pubid_pk PRIMARY KEY (pubid); c. ALTER TABLE books ADD CONSTRAINT books_pubid_nn NOT NULL (pubid); d. ALTER TABLE books ADD CONSTRAINT books_pubid_fk FOREIGN KEY (pubid) REFERENCES publisher (pubid); e. All of the above statements are invalidThe relationship between CUSTOMER and ORDER is one-to-many. CUSTOMER table has 5 records and ORDER has 15. How many records you will get in the output if you run the following SQL statement? SELECT Customers.CustomerID, Orders.OrderIDFROM Customers, Orders; 5 15 20 75
- This actually didnt work to resolve my problem... Heres what I have so far. CREATE TABLE Horse ( ID SMALLINT UNSIGNED AUTO_INCREMENT, RegisteredName VARCHAR(15), PRIMARY KEY (ID)); CREATE TABLE Student ( ID SMALLINT UNSIGNED AUTO_INCREMENT, FirstName VARCHAR(20), LastName VARCHAR(30), PRIMARY KEY (ID)); -- Your SQL statements go hereWrite an SQL statement that will insert an order in the orders table with the following data: cutomerID=3, orderDate = current date, shipAmount=20, taxAmount=23.56, shipDate=a week after current date, shipAddressID=3, cardType=2, cardNumber=4123123412341234, cardExpires=05/2024, billingAddressID=3 Write an SQL statement to delete all orders that are created between 2017-06-01 and 2017-06-07.Execute the following statements using MYSQL: 1.Create a Trigger "trigger regno" for the salesman table (Before INSERT) set the value as O for the experience > 7 and evaluate it. Also write the syntax to drop the Trigger "trigger regno* 2. Insert a value for Customer table (#Last 3 digit of your register no, #Your name, Vellore, 55, 010). Insert a value for salesman table ("10", #Your name, 5, 4000). 3. List out the number of customers in each city by arranging them from low to high. ( 4. Select all the salesman who's work experience is between 4 and 8.
