Explain the relationship between tables and files within the database, what are the most important structure...
Explain the relationship between tables and files within the database, what are the most important structure of the tables?
Homework Answers
In database table means "Relation" .In table the data stored in rows and columns. The data stored in table are called records.
Files are like normal files..
Important structure of tables :
In table the every individual columns are called attributes.
Complete one row is called "record".
In tables we can place only atomic data.
Atomic data means ,the data which can't be divided in to further.
The data in tables is safe and searching and managing data is easy using queries.
In files data is repeated ..multiple copies are present .so dta wastage. No security.searching in Filesystem is very complex.
Add Answer to:
Explain the relationship between tables and files within the
database, what are the most important structure...
QUESTION 1 What is the most common relationship within a relational database? Select the best answer...
QUESTION 1 What is the most common relationship within a relational database? Select the best answer from the following. One-To-One relationship. o One-To-Many relationship. Many-To-Many relationship. Zero-To-Zero relationship. QUESTION 2 What is an "entity'? Select the best answer from the following. An entity, for our purposes, is the same as a table in the database. An entity represents one of the columns in an individual table. There are no entities in a relational database. Entities are only part of NoSQL...
Consider a relationship with (0,N)-(0,N) cardinalities; explain the rule used to create relational database tables from...
Consider a relationship with (0,N)-(0,N) cardinalities; explain the rule used to create relational database tables from a conceptual model. How should the relationship be implemented and why does it need to be implemented that way? Does the rule differ if either or both of the minimum cardinalities are changed to 1?
Explain the relationship between capital structure and cost of capital
Explain the relationship between capital structure and cost of capital
When designing database tables, the difference between a good design and a bad design can be...
When designing database tables, the difference between a good design and a bad design can be a few seconds in response time and several minutes. You may think that this is not a huge difference, but imagine waiting several minutes on a web page for your results to load. How long would you wait? A slow database can mean the loss of customers. So let's begin by discussing some of the common elements of tables and how you would approach...
Topic: Inventory Manangement Part A. Database Creation Your database should have a minimum of 4 tables...
Topic: Inventory Manangement Part A. Database Creation Your database should have a minimum of 4 tables and include both one-to-many and many-to-many relationships. Be sure to include some numeric and/or date fields. Define all appropriate constraints, using the proper naming conventions (see Structure Notes below). Populate your database with at least 30 records in the main table(s), and whatever is needed in related tables. Submit the following: • a short description of the purpose of the database and what the...
Why is important to know how to back up and restore medisoft database files? H&P stands...
Why is important to know how to back up and restore medisoft database files? H&P stands for ____________. ________________ is the system currency used in the United States for classifying disease to facilitate the collection of statistical data. The SOAP notes system of documentation divides the information into what four areas ?
You are designing the database structure for a mail-order catalog company. You recognize that a many-to-many...
You are designing the database structure for a mail-order catalog company. You recognize that a many-to-many relationship exists between an order and the items listed on the order. This clue indicates that you should separate the data into two __________: one called Orders and the other called Order Details. states tables calculations datums
Spectroscopy 1. What is the relationship between the infrared spectrum and the molecular structure in the...
Spectroscopy 1. What is the relationship between the infrared spectrum and the molecular structure in the structural determination of organic compounds by means of the correlation tables? 2. How does the interaction between the UV-Vis radiation energy and the material occur? 3. How are electronic removals carried out according to their different types of transition? 4. Indicate the absorption maxima of the most common chromophores and the factors that determine their displacements: the conjugation and the solvent. 5. How is...
The primary key for M:N relationship tables O is a single attribute. @ always consists of...
The primary key for M:N relationship tables O is a single attribute. @ always consists of two attributes. O is the primary key of the most important entity linked to that relationship does not exist. Many-to-many relationship tables only use foreign keys
The type of bond that is most important in maintaining secondary structure of a protein is...
The type of bond that is most important in maintaining secondary structure of a protein is disulfide bridges hydrogen bonding between R groups hydrogen bonding within the backbone salt bridges hydrophobic interactions metal ion coordination QUESTION 2 A glycerophospholipid with the phosphate ester group bonded to ethanolamine would be classified as a cephalin lecithin sphingomyelin cerebroside ganglioside
QUESTION 1 What is the most common relationship within a relational database? Select the best answer from the following. One-To-One relationship. o One-To-Many relationship. Many-To-Many relationship. Zero-To-Zero relationship. QUESTION 2 What is an "entity'? Select the best answer from the following. An entity, for our purposes, is the same as a table in the database. An entity represents one of the columns in an individual table. There are no entities in a relational database. Entities are only part of NoSQL...
The primary key for M:N relationship tables O is a single attribute. @ always consists of two attributes. O is the primary key of the most important entity linked to that relationship does not exist. Many-to-many relationship tables only use foreign keys
The type of bond that is most important in maintaining secondary structure of a protein is disulfide bridges hydrogen bonding between R groups hydrogen bonding within the backbone salt bridges hydrophobic interactions metal ion coordination QUESTION 2 A glycerophospholipid with the phosphate ester group bonded to ethanolamine would be classified as a cephalin lecithin sphingomyelin cerebroside ganglioside
Most questions answered within 3 hours.
-
Create a button in Swift (Xcode) that will create a charge,
create a charge using Stripe's...
asked 2 minutes ago -
Cash Payback Period
Primera Banco is evaluating two capital investment proposals for
a drive-up ATM kiosk,...
asked 2 minutes ago -
1A- Why don’t voters complain about U.S. tariffs on imported
sugar?
Because sugar is only a...
asked 3 minutes ago -
The reaction rate of CO and NO2 in the reaction
CO(g) + NO2(g) → CO2(g) +...
asked 3 minutes ago -
In
the last 3 months, mike never knows when he is going to get his
allowance...
asked 5 minutes ago -
Imagine that a chemist puts 6.40 mol each of
C3H8 and O2 in a 1.00-L container...
asked 20 minutes ago -
How much money should be invested today in order to have $8340
at the end of...
asked 24 minutes ago -
You are conducting research for a hospital and issue a survey to
patients.
Based on the...
asked 24 minutes ago -
What might be a negative mutation that would hinder the
bug population?
asked 34 minutes ago -
A company just paid a dividend of $1.50 per share. The consensus
forecast of financial analysts...
asked 30 minutes ago -
A mass of 0.50 g of an unknown acid HA required 20.0 mL of 0.25
M...
asked 40 minutes ago -
Mitch is a director and officer of Numero Uno, Inc. Mitch makes
a marketing decision that...
asked 41 minutes ago