OrderlD item quantity 1 Fahita 1 Menu 1 Pepsi Item type price 1 Shawarma 2 Соса Drink 1.5 1 Water Fahita Sandwich 5 2 Coca 3 Pepsi Drink 1.5 Steak 3 Shawarma Sandwich 5 3 Fahita 1 Steak Plate 10 4 Steak Water Drink 1 water 1 The query that gives the price of the Steak Select one: All the answers are correct Select price from orderitem where item='Steak Select price from menu where item='Steak Select price from menu where item=steak Consider the table called STATION (ID, CITY, STATE, LAT N, LONG w); few rows are inserted to the table STATION: ID CITY STATE LAT_N LONG W 13 Phoenix AZ 33 112 44 Denver CO 40 105 66 Caribou МЕ 47 68 ID CITY STATE LAT_N LONG W Which query gives the the following table : 44 Denver CO 40 105 66 Caribou МЕ 47 68 Select one: Oa. SELECT * FROM STATION WHERE LAT_N > 39.7; O b. SELECT city,ID WHERE LAT N > 39.7; SELECT * FROM STATION WHERE LAT_N > 40; O d. None of these

OrderlD item quantity 1 Fahita 1 Menu 1 Pepsi Item type price 1 Shawarma 2 Соса Drink 1.5 1 Water Fahita Sandwich 5 2 Coca 3 Pepsi Drink 1.5 Steak 3 Shawarma Sandwich 5 3 Fahita 1 Steak Plate 10 4 Steak Water Drink 1 water 1 The query that gives the price of the Steak Select one: All the answers are correct Select price from orderitem where item='Steak Select price from menu where item='Steak Select price from menu where item=steak Consider the table called STATION (ID, CITY, STATE, LAT N, LONG w); few rows are inserted to the table STATION: ID CITY STATE LAT_N LONG W 13 Phoenix AZ 33 112 44 Denver CO 40 105 66 Caribou МЕ 47 68 ID CITY STATE LAT_N LONG W Which query gives the the following table : 44 Denver CO 40 105 66 Caribou МЕ 47 68 Select one: Oa. SELECT * FROM STATION WHERE LAT_N > 39.7; O b. SELECT city,ID WHERE LAT N > 39.7; SELECT * FROM STATION WHERE LAT_N > 40; O d. None of these

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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Which XXX should replace the missing statement in the following algorithm? ListSearch(myData, key) {return ListSearchRecursive(key, myData⇢head)}ListSearchRecursive(key, node) {if (node is not null) {XXX {return node}return ListSearchRecursive(key, node⇢next)}return null} Group of answer choices if (node⇢tail == key) if (node⇢head == key) if (node⇢data == key) if (node⇢next == key)
Suppose that a website contains two tables, the Customers table and the Orderstable. Write a SQL query to find all customers who never order anything.Table: Customers.+----+-------+| Id | Name |+----+-------+| 1 | Joe || 2 | Henry || 3 | Sam || 4 | Max |+----+-------+Table: Orders.+----+------------+| Id | CustomerId |+----+------------+| 1 | 3 || 2 | 1 |+----+------------+Using the above tables as example, return the following:+-----------+| Customers |+-----------+| Henry || Max |+-----------+
Question 9 Convert the following QUERIES to Stored Procedures with IN parameters In MySQL select customerNamefrom customerswhere customerNumber in(select customerNumberfrom orders where orderNumberin(select orderNumber fromorderdetails) ); Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this line
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school has 100 lockers and 100 students. All lockers areclosed on the first day of school. As the students enter, the first student, denotedas S1, opens every locker. Then the second student, S2, begins with the secondlocker, denoted as L2, and closes every other locker. Student S3 begins with thethird locker and changes every third locker (closes it if it was open and opens it ifit was closed). Student S4 begins with locker L4 and changes every fourth locker.Student S5 starts with L5 and changes every fifth locker, and so on, until studentS100 changes L100.After all the students have passed through the building and changed the lockers,which lockers are open? Write a program to find your answer and display all openlocker numbers separated by exactly one space.
Write a SQL query to delete all duplicate email entries in a table named Person,keeping only unique emails based on its smallest Id.+----+------------------+| Id | Email |+----+------------------+| 1 | john@example.com || 2 | bob@example.com || 3 | john@example.com |+----+------------------+Id is the primary key column for this table.For example, after running your query, the above Person table should have thefollowing rows:+----+------------------+| Id | Email |+----+------------------+| 1 | john@example.com || 2 | bob@example.com |+----+------------------+Note:Your output is the whole Person table after executing your sql. Use deletestatement.
** * Performs a MongoDB MapReduce query that returns the total value of all orders per state. SELECT state, SUM(orders.total) GROUP BY state */ public MongoCursor<Document> query3() { // TODO: Write a MongoDB MapReduce query that returns the total value of all orders per state. SELECT state, SUM(orders.total) GROUP BY state MongoCollection<Document> col = db.getCollection(COLLECTION_NAME); return null; }
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create database GA2gouse GA2gocreate table salesman(salesman_id int primary key, name varchar(30), city varchar(20), commission varchar(30));insert into salesman (salesman_id, name, city, commission) values (5001, 'James Hoog', 'New York', 0.15); insert into salesman (salesman_id, name, city, commission) values (5002, 'Nail Knite', 'Paris', 0.13); insert into salesman (salesman_id, name, city, commission) values (5005, 'Pit Alex', 'London', 0.11); insert into salesman (salesman_id, name, city, commission) values (5006, 'Mc Lyon', 'Paris', 0.14); insert into salesman (salesman_id, name, city, commission) values (5007, 'Paul Adam', 'Rome', 0.13); insert into salesman (salesman_id, name, city, commission) values (5003, 'Lauson Hen', 'San Jose', 0.12); Create table Customer (customer_id int primary key, cust_name varchar(30), city varchar(10), grade varchar(30), salesman_id varchar(30)(select salesman_id from salesman); why does my sql server code not work, at the customer table?
create database GA2gouse GA2gocreate table salesman(salesman_id int primary key, name varchar(30), city varchar(20), commission varchar(30));insert into salesman (salesman_id, name, city, commission) values (5001, 'James Hoog', 'New York', 0.15); insert into salesman (salesman_id, name, city, commission) values (5002, 'Nail Knite', 'Paris', 0.13); insert into salesman (salesman_id, name, city, commission) values (5005, 'Pit Alex', 'London', 0.11); insert into salesman (salesman_id, name, city, commission) values (5006, 'Mc Lyon', 'Paris', 0.14); insert into salesman (salesman_id, name, city, commission) values (5007, 'Paul Adam', 'Rome', 0.13); insert into salesman (salesman_id, name, city, commission) values (5003, 'Lauson Hen', 'San Jose', 0.12); Create table Customer (customer_id int primary key, cust_name varchar(30), city varchar(10), grade varchar(30), salesman_id int,CONSTRAINT FK_salesman_id FOREIGN KEY (salesman_id) REFERENCES salesman(salesman_id));insert into customer…
create database GA2gouse GA2gocreate table salesman(salesman_id int primary key, name varchar(30), city varchar(20), commission varchar(30));insert into salesman (salesman_id, name, city, commission) values (5001, 'James Hoog', 'New York', 0.15); insert into salesman (salesman_id, name, city, commission) values (5002, 'Nail Knite', 'Paris', 0.13); insert into salesman (salesman_id, name, city, commission) values (5005, 'Pit Alex', 'London', 0.11); insert into salesman (salesman_id, name, city, commission) values (5006, 'Mc Lyon', 'Paris', 0.14); insert into salesman (salesman_id, name, city, commission) values (5007, 'Paul Adam', 'Rome', 0.13); insert into salesman (salesman_id, name, city, commission) values (5003, 'Lauson Hen', 'San Jose', 0.12); Create table Customer (customer_id int primary key, cust_name varchar(30), city varchar(10), grade varchar(30), salesman_id varchar(30),CONSTRAINT FK_salesman_id FOREIGN KEY (salesman_id) REFERENCES salesman(salesman_id)); i keep getting…
create database GA2gouse GA2gocreate table salesman(salesman_id int primary key, name varchar(30), city varchar(20), commission varchar(30));insert into salesman (salesman_id, name, city, commission) values (5001, 'James Hoog', 'New York', 0.15); insert into salesman (salesman_id, name, city, commission) values (5002, 'Nail Knite', 'Paris', 0.13); insert into salesman (salesman_id, name, city, commission) values (5005, 'Pit Alex', 'London', 0.11); insert into salesman (salesman_id, name, city, commission) values (5006, 'Mc Lyon', 'Paris', 0.14); insert into salesman (salesman_id, name, city, commission) values (5007, 'Paul Adam', 'Rome', 0.13); insert into salesman (salesman_id, name, city, commission) values (5003, 'Lauson Hen', 'San Jose', 0.12); Create table Customer (customer_id int primary key, cust_name varchar(30), city varchar(10), grade varchar(30), salesman_id int,CONSTRAINT FK_salesman_id FOREIGN KEY (salesman_id) REFERENCES salesman(salesman_id));insert into customer…