Which type of index is the best if you have 1000 customers that you must to insert their info. Every day? (hint: lot of insertion). Draw suggested index.
Q: can you describe a row major ordering and a column major ordering
A: The solution to the given problem is below.
Q: Which of the following is true according in regards to the cost of accurate and complete data?…
A: Actually, given question regarding cost of accurate and complete data.
Q: What is a determining characteristics of unstructured data? A: It is stored in rows and columns. B:…
A: EXPLANATION: Unstructured data is information that is not organized according to a pre-determined…
Q: Action Explanation Filter by number of ratings Remove entries for restaurants with no customer…
A: Answer: Answer is option (A) our guidelines is answer the first three question form the first…
Q: 6. In SQL server Management studio Ctrl+K+K shortcut refers to ___________ a) Refresh IntelliSense…
A: Question 6. In SQL Server Management studio Ctrl+K+K shortcut refers to ________ a) Refresh…
Q: Programming language: SQL Tool: Oracle SQL Developer The database schema Employee (Lastname,…
A: Given: A database with four tables such as, Employee {Lastname, FirstName, MidInitial, gender,…
Q: sing the World database, which country has the lowest life expectancy percentage? Display the…
A: SQL is the language that is used to communicate with the database. With the help of SQL, data can be…
Q: Find the streets and cities of residence of all managers who work for Union Pacific. Find the…
A: SELECT E.street, E.city FROM ((employee_table E INNER JOIN manages M ON E.FirstName = M.FirstName…
Q: Study the scenario and complete the question(s) that follow: A vet clinic "XYZ Vets" has a website…
A: Sol: Our guidelines is answer the first three question so we will do first three and this data i…
Q: Customer (CID, CName, Street, City, State, Gender) Agent (AgentID, GName, Position, Salary, Gender,…
A: Query the Customer table and order by city and state. Add Distinct keyword to get the unique city.…
Q: SELECT CName, cPhoneNo FROM CUSTOMER WHERE CNo IN (SELECT CNo FROM BOOKING WHERE rNo IN (SELECT rNo…
A: Due to company policies I am compelled to solve only one part and that is the first part. Please…
Q: 209. An encyclopedic database a. is generally free b. is easy for beginners to use c. is an…
A: Answer :- ( C ). is an information utility that specializes in storing and searching information
Q: Bicycle (BikeId, Rate, Maker, Model) Variety (BikeId, Type, Rate) Sold (BikeId, SellerId, DateSold,…
A: Since you are asking multiple questions, we are answering first 4 questions for you. If you want…
Q: STUDENT(sid, firstname, lastname, cgpa, contactno) ENROLLMENT(sid, cid) COURSE(cid, name, code,…
A: Inner query concept will be used to get the final result in this case.
Q: Which of the following is/are Uninformed Search technique/techniques? Select one: a. Bidirectional…
A: Uninformed search algorithms do not have additional information about state or search space other…
Q: Should you create an index? Why or why not? SELECT P_CODE, P_PRICE FROM PRODUCT WHERE P_PRICE…
A: Indexes: Indexing is a technique that is used in SQL for optimizing the performance; indexes are…
Q: 1. Sales clerk answers telephone and connects to a customer 2. Clerk verifies customer information…
A: UML diagrams are of three types: Structural diagram Interaction diagram Behavior diagram The…
Q: What is a piece of software that allows you to create tables and produce queries to find…
A: SQL
Q: (Book_id, book_title, category, language, pages, price, sales, publisher_id) Publisher…
A: It is defined as a widely used procedural query language. It collects instances of relations as…
Q: Discuss how you would apply each of the following spreadsheet functions to assist in cleaning data:…
A: Given: Discuss how you would use each of the spreadsheet functions listed below to aid with data…
Q: Assignment 4: SQL for Data Retrieval (Single Table) Assignment 4 is based on the ABC Database's four…
A: According to the Question below the Complete Query:
Q: Which one is an example of a traditional personnel data? a. Balance sheet b. Payroll c. IoT d.…
A: Traditional data is the organized data which is as a rule significantly kept up with by a wide range…
Q: What is the need for transactions?
A: An transaction is a unit of work that is performed against an information base. Exchanges are units…
Q: Make a list of customers with the list of orders and the amount of dollars that they paid for each…
A: Queries are used to fetch the data from database. Normally SELECT,FROM,WHERE keywords are used to…
Q: a) What integer value can searches return if the given key value is not found? b) What is another…
A: To find Solution for: What integer value can searches return if the given key value is not found?…
Q: 1. Which SQL statement inserts data into a table called Projects? a) INSERT Projects ('Content…
A: Introduction: Structured Query stands for Structured Query Language. Language is a programming…
Q: What's the relevance of using keys??
A: The Importance of Keys: To identify a tuple in a table, a key is required. They allow for the…
Q: Create a query of renters not qualified to rent, list who Renter ID or unique identifier, Renter…
A: Answer is given below .
Q: Hash table
A: Given : - Hash table size = 10 Sequence is 3, 5, 7, 2, 9, 6, 1, 8, 4 The array index starts from…
Q: 100 75 50 25 Note Average Mar 8, 2015 May 28, 2017 Aug 18, 2019 The chart above shows the frequency…
A: This chart shows the frequecy of search the keyword pen and pencil. So the correct answer is:-
Q: Q.4.4 Query all the user profiles where the fitness level of the user is equal to 2. Q.4.5 Query…
A: Assume that, The name of the table is User profile The attributes of the user profile table are…
Q: CUSTOMERS (CUSTOMER_ID, EMAIL_ADDRESS, FULL_NAME) ORDERS (ORDER_ID, ORDER_DATETIME, CUSTOMER_ID,…
A: Note: As you have asked multiple questions, as per our policy, we will solve the first question for…
Q: 9. Write a SQL query, that gives all employees in department(Dno) 5, a 5% raise in salary.
A: Here I written SQL query with proper example to understand. I hope you like it.
Q: Bicycle (Bikeld,. Rate, Maker, Model) Variety (Bikeld. Type, Rate) Sold (Bikeld, Sellerld, DateSold,…
A: Solution As per BNED rules we are allowed to answer 3 sub parts please resubmit the question again…
Q: the ERD a third normal form solution for the following: lege keeps track of students and the courses…
A: It is defined as a Entity Relationship (ER) Diagram that is a type of flowchart that illustrates how…
Q: Which one of these option will slow down the execution of your queries? Indexes Query Optimizer…
A: In this case, we have to find the option that slows down the execution of the query.
Q: he catalog's title? Provide three instances of items about which the cata
A: а librаry саtаlоg in whiсh bооks аnd оther wоrks аre listed оnly under their titles…
Q: Tid Items bought 2000 A,B,C A C 1000 A,C - What is the support of this rule? - What is the…
A: Let's first understand what is mentioned in the table . In the table the transactions of maybe a…
Q: Examples of the user touchpoints include: Select one: a. Transaction Points b. Service Points c. All…
A: Find Examples of the user touchpoints
Q: a player plays in a single team in a given season. however, the player may change the teams from a…
A: Please give positive ratings for my efforts. Thanks. ANSWER First, you need to understand…
Q: first last cid quantity name ordDate address Customer custord Order prodord pid Product pname price…
A: In the given ERD, Customer entity and the Product entity are related to the weak entity Order…
Q: write the code to create a database and contract table using SQLite
A: To create a database just need to call this method openOrCreateDatabase with your database name and…
Q: First na Aildet ne (last make ARMO CAPIYORD Salary employee Shift bers-Pefla booking data Ser ve…
A: ERD stands for entity relationship diagram and the main components of ERD are entities, attributes…
Q: SQL Question: Say I have a table called LISTING with the full team name Real Madrid in on column…
A: There is table named as the LISTING. We have column name PLAYER having full name and we want to…
Q: CUSTOMER (cid, fname, Iname, phone) ORDER (oid, order_date, street, city, cid) ORDERDETAIL (oid,…
A: As per the statement , we want only customer relationCUSTOMER (Cid, frame, lname, phone)Display the…
Q: Assignment 4: SQL for Data Retrieval (Single Table) Assignment 4 is based on the ABC Database's four…
A: The SQL BETWEEN Operator: The BETWEEN operator selects values within a given range. The values can…
Q: MySQL database, with table Table 1 fields: NO_CRT, PRODUCT, PIECES PRICE_PCS. TOTAL PRICE
A: sql query CREATE TABLE `table_1` ( `no_ctr` INT NOT NULL, `product` VARCHAR(45) NULL, `pieces`…
Computer Science
Step by step
Solved in 2 steps with 1 images
- What is the index? What are the different types of index?What do you mean by Index hunting?Which one is not correct about index in mysql? Indexes slow down inserts and updates but speed up WHERE clauses and ORDER BY. Failure to properly index data is the leading cause of SQL performance problems Indexes help a database retrieve data efficiently indexing can be neglected if the size of the database is too large
- How does Index hunting help in improving query performance?A mobile app for booking doctor appointments is running very slowly when accessing data from a database and the programmers think that poorly optimised SQL statements are causing it. There are three places where they think the code might be slow. 1. When users book a new appointment. 2. When the date of an appointment is modified. 3. When a user searches for doctors by name or specialty. Could any of these be improved by creating a database index? Why/Why not? What column or columns (if any) would be appropriate to add an index to?A manager at JustLee Books wants a list of all books with at least a $10.00 profit margin. The management wants the data presented in decreasing order, according to the profit of each book. "Create a document for each request that includes the SQL statement and the query results."
- How many queries remain before you can determine whether database as a service is the optimal solution for your library's needs?What factors influence the decision to createan index on a field?2- selects the order line items (orderNumber, orderlinenumber) fromthe “orderdetails” table. Also, display the subtotal (quantityOrdered * priceEach) for eachline item and sorts the result set based on the subtotal descending .3- Display unique last names from employees table ordered by last name.4- Display customerNumber, customerName and creditLimit for getting the top five customerswho have the highest creditLimit.5- Find customer Name, customer country, sales representative employee number fromcustomers who do not have a sales representative.6- For each order status, display status and count of orders have this status.7- For Each order number in order details table, Display order number, sum of quantityordered (itemsCount) and sum of (priceEach * quantityOrdered) as total. With condition“total” greater than 1000.8- Display product code, product name and text description for product.9- Find customer number, customer name, order status and order number, for customerwith their orders…