The term attribute refers to a of a table. Your answer When we talk about the table in more accurate details, for example this field, what is its data type and what is the domain of it like integer or text, this type is called _view of data. Your answer

The term attribute refers to a of a table. Your answer When we talk about the table in more accurate details, for example this field, what is its data type and what is the domain of it like integer or text, this type is called _view of data. Your answer

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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SQL Queries: Given the following schema. Primary keys are underlined and highlighted in yellow and foreign keys are bold. The meaning of the relations is straightforward. Medical_Staff(MS_Id, MS_First, MS_Last, MS_PhoneNumber, MS_Occupation, Salary) Blood_Bank(Bank_Id, Bank_Name, Bank_Street, Bank_City, Bank_St, Bank_PhoneNumber) Donor(Donor_Id, Donor_First, Donor_Last, Donor_BloodType, Donor_City, Donor_St, DOB, TotalNumberOfDonations) Donation_Record(Donor_Id, Donation_Date, Donation_Amount) Employee(MS_Id, Bank_Id) Storage(Donor_Id, Donation_Date, Bank_Id) Write SQL queries to answer the following questions: a.Find the average donation amount for Sue Thompson (Donor Id = 3329) for the year 2018. b.Sum all donations by Bank for each State (i.e. the State the blood bank is located in, not the Donor). c.Find the name of the youngest donor and all the donations made in by that donor in 2020.
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.
which object describes a set of values in a table? a) A relationship b) An attribute c) An entity d) A rule
Open the Missing Addresses query in Design view. Add a new column to determine if a customer does not have an address on file. If the customer’s Address is null, it should display Missing. If not, it should display nothing. Name the column AddressPresent. Add criteria of Missing to the column you just created, so only the customers missing an address display. Move the AddressPresent field so it appears between PhoneNumber and Address. Run the query. Ensure only customers with null Address fields display. Save and close the query.
Key to represent relationship between tables is called A. Primary key B. Secondary Key C. Foreign Key D. None of these
How do we decide which model to create in Microsoft Access as our table creation environment?
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What’s unique about materialized views compared with other views?
QUESTION 3 When identifying Tables in a query, you should All of these Identify the Server Instance None of these Identify the schema Identify the Set Theory
Given the following schema, answer the following questions USERS Attribute Data Type USER_ID NUMBER(3) USER_NAME VARCHAR2(20) USER_TYPE VARCHAR2(10) USER_LIMIT NUMBER(1) BOOKS Attribute Data Type BOOK_ID NUMBER(5) BOOK_TITLE VARCHAR2(25) BOOK_YEAR VARCHAR2(4) Write the SQL code that will create the tables structures for the tables named Books, and Users. Identify and include any PK and FK for both tables.
Question 3: Create the DDL statements to create the tables described in your modified ER diagram in question 2: DDL Statement: CREATE TABLE School ( school_code integer Primary Key(10), location varchar(25), name varchar(10) ); CREATE TABLE Professors ( staff_id integer(10), name varchar(20), school varchar(30) ); CREATE TABLE Course ( subject_code varchar(10), school varchar(30), name varchar(10) ); CREATE TABLE Subject ( subject_code(10), school varchar(30), name varchar(10) ); CREATE TABLE Student ( student_id number(10), name varchar(10), address varchar(30), phone number(10) ); Table Description desc table School; Select * from School; Name Null Type school_code Not null integer location Not null varchar(25) name Not null varchar(10) desc table Professor; Select * from Professor; Name Null Type staff_id Not null number(10) name varchar(20) school varchar(30) desc table Course; Select * from…
Based on the ERD below, write the SQL statement to change the job description of “Database Designer” to “Database Developer”. After completing this task examine the results with a select statement. (Hint: Use an Update Statement.)