The following SQL statement represents which type of join? SELECT title, orderno, quantity FROM books join orderitiems using (isbn); Select one: a.Equality b.Non-equality c.Outer join d.Self join
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- The following SQL statement contains which type of join? SELECT title, order#, quantityFROM books FULL JOIN orderitemsON books.isbn ¼ orderitems.isbn; (refer to the tables in the JustLee Books database.)a. equalityb. self-joinc. non-equalityd. outer joinGiven the following SQL Query, which columns would you recommend to be indexed? SELECT InvoiceNumber, InvoiceDate, Invoice_Total, Invoice_Paid, Invoice_Total - Invoice_Paid as Balance FROM Invoice WHERE Invoice_Date >= "2015-07-20" and Salesman_Id = "JR" ORDER BY DESC Invoice_Total Drag the correct answers to one of the three pockets. Invoice_paid InvoiceNumber Invoice_Date Invoice_Total SalesMan IDCan some rewrite the following sql tables into relational algebra format? a) SELECT NoOfCopies FROM ( (BOOK NATURAL JOIN BOOK_COPIES ) NATURAL JOIN LIBRARY_BRANCH ) WHERE Title = 'The Lost Tribe' AND BranchName = 'Sharpstown' b) select count(b.No_of_copies ) from BOOK_COPIES b join LIBRARY _BRANCH l on l.Branch_id=b.bBranch_id join BOOK k on k.Book_id=l.Book_id where k.Title=’The lost tribe’ group by l.Branch_id; C) SELECT Name FROM BORROWER B WHERE NOT EXIST ( SELECT * FROM BOOK_LOANS L WHERE B.CardNo = L.CardNo ) D) select b.Title, br.Name, br.Address from BOOK b join BOOK_LOANS bl using(Book_id) join BORROWER br using(Card_no) join LIBRARY _BRANCH lb using(Branch_id) where lb.Branch_name=’Sharpstown’ and bl.Due _date=SYSDATE; E) SELECT L.BranchName, COUNT(*) FROM BOOK_COPIES B, LIBRARY_BRANCH L WHERE B.BranchId = L.BranchId GROUP BY L.BranchName f) select b.Title ,bc.No_of_copies from BOOK b join BOOK_AUTHORS ba using(Book_id) join BOOK_COPIES bc using(Book_id) join…
- Which SQL statement is used for R in CRUD? -CREATE TABLE employee -INSERT INTO employee -SELECT * FROM employee -DROP TABLE employeeHow can we write the following SQL query based on this table? - Find properties with rents below or equal to the maximum rent that each client is willing to pay. List clientNo, maxRent, propertyNo, rent.Oracle 12 Question 13 Which of the following SQL statements is not valid? Question 13 options: SELECT orderdate when the order was submit FROM orders; SELECT orderdate as "when the order was submit" FROM orders; SELECT orderdate as whentheorderwassubmit FROM orders; all of the above Question 14 What value does the following SELECT statement returns? SELECT 100*2 +50/5 FROM table; Question 14 options: 50 25 210 1200
- In Visual basics explain the meaning of the listed SQL commands : (a)ORDER BY (b)INNER JOIN (c)INSERT (d) ALTER TABLEWrite a SQL query using their schema to find out who hasn't taken a course at the university. There should be no subqueries or set actions (use an outer join).Given the following query:SELECT DISTINCT zip, categoryFROM customers NATURAL JOIN orders NATURAL JOIN orderitemsNATURAL JOIN books;Which of the following queries is equivalent? (refer to the tables in the JustLee Books database.)a. SELECT zip FROM customersUNIONSELECT category FROM books;b. SELECT DISTINCT zip, categoryFROM customers c, orders o, orderitems oi, books bWHERE c.customer# ¼ o.customer# AND o.order# ¼ oi.order#AND oi.isbn ¼ b.isbn;c. SELECT DISTINCT zip, categoryFROM customers c JOIN orders oJOIN orderitems oi JOIN books bON c.customer# ¼ o.customer#AND o.order# ¼ oi.order#AND oi.isbn ¼ b.isbn;d. all of the abovee. none of the above
- Express the following query in SQL using no subqueries and no set operations.select IDfrom studentexceptselect s_idfrom advisorwhere i_ID is not nullWhich one of the following is not a property of Transactions? a) Atomic b) Consistency c) Backup d) Isolation e) Durability Which one of the following should be specified in the statement if an SQL SELECT statement contains a HAVING clause? a) ORDER BY b) LIKE c) ORDER BY ASC d) GROUP BY e) WHERE The “IN” operator is used to compare a single value with a set in an SQL WHERE Clause. It is equivalent to which one of the following operators? a) = b) EXISTS c) > ANY d) = ANY e) none of the above. In order for the LIKE operator to match exactly one character, which one of the following symbols should be used? a) * b) _ c) % d) & e) |Write an SQL query for the following questions: List the name of doctors with the number of written prescriptions. List the customers and the number of prescriptions each has. List the most prescribed medicines in the ascending order. What is the average cost of each prescription? What is the code of the most expensive prescription? What is the name of mostly prescribed medicine? create table Addresses(address_id varchar2(10) not null constraint addresses_pk primary key,city varchar2(20) not null,state varchar2(20) not null,country varchar2(20) not null,note varchar2(50)); create table Doctors(doctor_id varchar2(10) not null constraint doctor_pk primary key,address_id varchar2(10) not null,first_name varchar2(20) not null,last_name varchar2(20) not null,phone varchar2(20),email varchar2(20),note varchar2(50),constraint doctor_fk foreign key (address_id) references Addresses(address_id)); create table Customers(customer_id varchar2(10) not null constraint customer_id primary…