Database Lab (CE 450)( Task 9)B) Objective: Design the Appropriate Database Schema for ER diagram:1. Identify the tables for the Database.2. Identify the columns for the tables.3. Identify the constraints(PRIMARY KEY,UNIQUE,NOT NULL,FOREIGN KEY )constraints for the columns.An ER diagram for a BANK database schemaBRANCHESBANK_BRANCHBANKCodeNameAddrAddrBranch_noАСCTSLOANSAcct_noBalanceLoan_noAmountACCOUNTТуреТуреLOANMA_CLC(TnameMnameLnameBdateSsnNameAgePhonesCUSTOMERAddr

1. The Tables for the Database In any database ER diagram entity is viewed as the table which has…

Answered: 1. Identify the tables for the…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Which one of the following statements is wrong? ( ) Alternate keys are candidate keys. ( ) Foreign key cannot have value NULL. ( ) If the foreign key value of a table neither matches any candidate key of its home relation nor is null, referential integrity of the table does not hold. ( ) A primary key may consist of all attributes of a table.
its about Database Design Please explain what does it means to manipulate the structure of tables to add and to modify, and remove columns and constraints. Can you please give examples as well, I'm just trying to understand the subject more.
What is the difference between a PRIMARY KEY constraint and a UNIQUE constraint? ( refer to the tables in the JustLee Books database).
15. A table is said to exhibit referential integrity if: a. it has no foreign key. b. it has a foreign key, and all the foreign key values are unique and not null. c. it has a foreign key, and all the foreign key values are referenced in another table's primary key attribute. d. it has a foreign key, which is also a component of its primary key.
Hi, For this proble I need to create a table called instructor_course_nums within a university database schema. 1. I need to write a procedure that accepts an instructor ID as input. The procedure calculates the total number of course sections taught by that instructor, and adds a tuple to the instructor_course_nums table consisting of the instructors ID number, name, and total courses taught - call these attributes: ID, name, and tot_courses. 2. If the instructor already has an entry in the table, then the procedure makes sure the total number of courses taught in the instructor_course_nums table is up-to-date. Here is what I have that answers the first part of the question: CREATE TABLE instructor_course_nums ( id varchar (10), name varchar (30), tot_courses integer, CONSTRAINT instructor_course_nums_pkey PRIMARY KEY (id)); CREATE OR REPLACE PROCEDURE Student_00_insCourseNumsProc(ID varchar(10), name varchar (25), tot_courses…
Implement a new independent entity phone in the Sakila database. Attributes and relationships are shown in the following diagram: The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column names: All lower case Underscore separator between root and suffix Foreign keys have the same name as referenced primary key Write CREATE TABLE and ALTER TABLE statements that: Implement the entity as a new phone table. Implement the has relationships as foreign keys in the Sakila customer, staff, and store tables. Remove the existing phone column from the Sakila address table. Step 2 requires adding a foreign key constraint to an existing table. Ex: ALTER TABLE customer ADD FOREIGN KEY (phone_id) REFERENCES phone(phone_id) ON DELETE SET NULL ON UPDATE CASCADE; Specify data types as follows: phone_id, phone_number, and country_code have data type INT. phone_type has date type VARCHAR(12) and contains strings like 'Home', 'Mobile', and 'Other'. Apply…
When considering creating a join between two tables, how are we demonstrating the concept of "relational" databases? Why is it essential that we create the join by finding a common attribute that is unique in at least one table and look at situations where that attribute has the same value ( is equal ) in both tables?
A concise explanation of the many reasons why the use of tables in database design is a good idea could be of some use. Would you mind providing a brief remark on the subject of NULL?
How do you balance the trade-off between indexing for query performance and the overhead of maintaining those indexes?
How about a summary of the benefits associated with using tables in relational databases? Perhaps you could elaborate on the concept of NULL in a short essay.
By filtering out columns that don't meet particular criteria, a select operation may reduce the size of a table in a relational database.Is it the case or not?
I NEED HELP WITH THIS QUESTION FOR MY DATABASE MANAGEMENT Edit Question I NEED HELP WITH THIS QUESTION FOR MY DATABASE MANAGEMENT CLASS. How would you add PK to a table, without dropping it, for which no PK was declared with Create.

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1. Identify the tables for the Database. 2. Identify the columns for the tables. 3. Identify the constraints(PRIMARY KEY,UNIQUE,NOT NULL,FOREIGN KEY) constraints for the columns.