Question 7Match a user request with the correct Express handler1.app put "jeroductstie, functiontreg, res)Anna needs to find fivemost popular products thatwere sold in year 2020.Alex needs to delete aproduct from the database2.app get "Joroducta, tunctiontreg, res)because it isn't offeredanymore.Bob needs to update theprice for a product. Bobknows the product's id andthe new price.3. app.delete oroductsie, functionre res) {**Matt is updating adatabase. He noticed theabsence of a product in thedatabase, and he decides toadd it.4.app.post Yproducts, function(rea, res)

Question 7 Match a user request with the correct Express handler 1. app out product, fu Anna needs to find five most popular products that were sold in year 2020. Alex needs to delete a product from the database because it isn't offered 2. pp get oreductN, on anymore. Bob needs to update the price for a product. Bob knows the product's id and the new price. 3. app.delete oroducti, un

Question 7 Match a user request with the correct Express handler 1. app out product, fu Anna needs to find five most popular products that were sold in year 2020. Alex needs to delete a product from the database because it isn't offered 2. pp get oreductN, on anymore. Bob needs to update the price for a product. Bob knows the product's id and the new price. 3. app.delete oroducti, un

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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What do you need to do if a tutor signs up and wants to tutor in both reading and math? Draw the new ERD, create new relations, and write any SQL statements that would be needed to handle this development.
I need to double check my answer to insure I did it right. Thanky you. Question: Gamer: (UserID, Name, Age, Address, City, Favorite-Game, Rank) Game: (GameID, Name, Company, Release-Year, Version) Store: (StoreID, Name, Address, City) WhereToFind: (GameID, StoreID, Price) Category: (GameID, Category-Name) From the relational schemas illustrated above, use the different relational algebra operators and operations (ρ, σ, π, ⋂, ⋃, -, ⨝) discussed in class to build the following queries: 1. List -by name and ID- each gamer who lives in the city of Chicago, with a rank of 5, and is aged between 15 (included) and 30 (included).2. List games -by name and release year- that are not in the “Action” category.3. Since each game can fall within several categories, list games -by name and release year- that are in the “Action” category and also in the “Role-Playing” category…
WORKING IN CENGAGE AND CAN'T FIGURE OUT THIS TASK. I TRIED OTHER STAEMENTS BUT DID NOT WORK EITHER. PLEASE HELP! Task 5: The marketing team wants to celebrate the success of StayWell with a party. The team wants a table with the names of all residents and owners combined into single column named PARTICIPANT. You need to combine this information from the tables and send it back to the team. You do not need to create a new table in the database schema. To combine strings into a single column you must use the CONCAT function which combines two or more strings together and its syntax is the following: CONCAT(string1, string2, ....)
please answer DBMS ques asap! AUMarket is a retail company whose database system uses the discretionary access control to manage its data. Jennifer is the DBA of this database system and also the owner of a table called PAYMENT. Jennifer grants SELECT on the table PAYMENT to the database user Lee as follows: GRANT SELECT ON PAYMENT TO Lee; However, Jennifer does not want to grant any privileges on the table PAYMENT to the database user Paul. Paul knows very well about database hacking techniques. If Paul does not have any privilege on PAYMENT but he knows that Lee has the SELECT privilege on PAYMENT, is it possible that Paul can hack the database in order to obtain the information of all records in the table PAYMENT? If impossible, you need to explain why it is impossible. If possible, you need to explain how Paul can obtain the information.
Task 3: The Driver Relationship team wants to create some workshops and increase communication with the active drivers in InstantRide. Therefore, they requested a new database table to store the driver details of the drivers that have had at least one ride in the system. Create a new table, ACTIVE_DRIVERS, from the DRIVERS and TRAVELS tables which contains the following fields: DRIVER_ID CHAR(5) (Primary key) DRIVER_FIRST_NAME VARCHAR(20) DRIVER_LAST_NAME VARCHAR(20) DRIVER_DRIVING_LICENSE_ID VARCHAR(10) DRIVER_DRIVING_LICENSE_CHECKED BOOL DRIVER_RATING FLOAT ANSWER IN MYSQL PLEASE
Procedure: 1. Click New Query and type an SQL statement to create a database named myDB. Tools Window Help | New Query D Execute DNI 2. Click the Execute button or press F5 to see the new database in the Object Explorer. 3. Create queries to perform the next steps. Before writing the queries, type USE MYDB; in the first line to use the database you have created in Step 1. 4. Create the tables named Customers and Product. Setthe appropriate data types and determines which ones are supposed to be NOT NULL. Customers: CustomerID (Primary key), EirstName, LastName, Email, Gender, Birthdate Products: ProductID (Primary key), Description, Quantity, Price, VendorID 5. Create anothertable named Vendors with columns: VendorID (Primary key), Name, ContactNum, CityAddress. 6. Set VendorlD from the Vendortable as a foreign key in the Products table. 7. Save a copy of your queries since these will be used in the last laboratory session of the Pre-final period.
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Task 5:The marketing team wants to celebrate the success of StayWell with a party. The team wants a table with the names of all residents and owners combined into single column named PARTICIPANT. You need to combine this information from the tables and send it back to the team. You do not need to create a new table in the database schema. I found the answer but it wroten on paper so its really hard to understand what it is, that's why I am posting this question again.
You decided to create a client ID field for the primary key since some clients have the same name as others. Now you need to decide on a name for the field. The field name should make it clear that the field is a unique identifier for each record in order for it to be valuable for others using the database. What field name will help you track the relevant information as you work with this table? a)ClientID . b)PrimaryKey.
I need help answering this question for my Database Management class. Thank you. 6. For each order, report order number, order date, and discount percent. Is this the correct solution? SELECT O.ORDER_NUM,O.ORDER_DATE,((SUM(I.PRICE * OL.NUM_ORDERED)-SUM(OL.QUOTED_PRICE * OL.NUM_ORDERED))/SUM(I.PRICE * OL.NUM_ORDERED)) * 100 ASTOTAL_DISCOUNT_PERCENTDISCOUNT_PERCENT FROM ORDER_LINE OLINNER JOIN ORDERS O ON (OL.ORDER_NUM =O.ORDER_NUM)INNER JOIN ITEM I ON(OL.ITEM_NUM = I.ITEM_NUM)GROUP BYO.ORDER_NUM, O.ORDER_DATE;
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