Entity Relationship Diagram which simply known as ER-Diagram or ERD describes the structure of the DB diagramatically. It works as the Road Map for the Database which we are going to implement later.
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Geometric Shapes for ER-Diagram
Weak Entity
Weak Entity is an entity which can't be uniquely identified a given record by only using it's own attributes
aloneas this entity is completely(Totally) depend on the other Relationship. So, to keep
the uniqueness of each record of data we need to use a foreign key(Primary Key of other Entity) in conjunction
with its attributes to create a primary key.
Entity Relationships
Entity relationships can be categorized into four types. They are;
1. One to One
Relationship (1 : 1)
2. One to Many Relationship (1
: M)
3. Many to One Relationship (M
: 1)
4. Many to
Many Relationship (M : M)
✱important:- (1 : 1), (1 : M), (M : 1), (M : M) are the Cardinality Ratio for those relationships
One to One Relationship (1 : 1)
❄️ In this One to One Relationship Student is the Inverse (Main Charactor) and Wach is the Outverse (Object Charactor).
One to Many Relationship (1 : M)
Many to One Relationship (M : 1)
Many to Many Relationship (M : M)
Unary Relationship
In a Unary Relationship, both of the participants are same Entity.
Binary Relationship
In a Binary Relationship, two different participants are involved.
Ternary Relationship
In a Ternary Relationship, three different participants are involved.
N - ARY Relationship
When a large No of entity sets are participating in a relation, it is called as a N-ARY Relationship. In here Nrepresents the no of Entities which involves in the given relation. The above mentioned Unary Relationship, Binary Relationship, Ternary Relationship are special moments of N-ARY Relationship.
Unary Relationship - (Only One Entity involves the Relation)
Binary Relationship - (Only
Two Entity involves the Relation)
Ternary Relationship -
(Only Three Entity involves the Relation)
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How to earn from real estate marketing: The question here is can anyone work in the field of real estate marketing? The answer will definitely be no !! Because the real estate marketer must have some qualities or features in order to start working in this field, one of the most important of these qualities is dealing with society, meaning that you are not a shy person because you will not be able at this time to deal with people or specifically the seller and buyer, and there are other qualities. There are many that you should search for before starting work, as for how to find a property and promote it on social media, there are many ways you can learn and use it, as there are free real estate ads on many sites and you can access these sites and you can advertise your property for free like Craiglist, MarketPlace in Facebook and many more. The field of real estate marketing or profit by marketing real estate is a very profitable field and you can start it now.
How to earn from real estate marketing: The question here is can anyone work in the field of real estate marketing? The answer will definitely be no !! Because the real estate marketer must have some qualities or features in order to start working in this field, one of the most important of these qualities is dealing with society, meaning that you are not a shy person because you will not be able at this time to deal with people or specifically the seller and buyer, and there are other qualities. There are many that you should search for before starting work, as for how to find a property and promote it on social media, there are many ways you can learn and use it, as there are free real estate ads on many sites and you can access these sites and you can advertise your property for free like Craiglist, MarketPlace in Facebook and many more. The field of real estate marketing or profit by marketing real estate is a very profitable field and you can start it now.
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How to earn from real estate marketing: The question here is can anyone work in the field of real estate marketing? The answer will definitely be no !! Because the real estate marketer must have some qualities or features in order to start working in this field, one of the most important of these qualities is dealing with society, meaning that you are not a shy person because you will not be able at this time to deal with people or specifically the seller and buyer, and there are other qualities. There are many that you should search for before starting work, as for how to find a property and promote it on social media, there are many ways you can learn and use it, as there are free real estate ads on many sites and you can access these sites and you can advertise your property for free like Craiglist, MarketPlace in Facebook and many more. The field of real estate marketing or profit by marketing real estate is a very profitable field and you can start it now.
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How to earn from real estate marketing: The question here is can anyone work in the field of real estate marketing? The answer will definitely be no !! Because the real estate marketer must have some qualities or features in order to start working in this field, one of the most important of these qualities is dealing with society, meaning that you are not a shy person because you will not be able at this time to deal with people or specifically the seller and buyer, and there are other qualities. There are many that you should search for before starting work, as for how to find a property and promote it on social media, there are many ways you can learn and use it, as there are free real estate ads on many sites and you can access these sites and you can advertise your property for free like Craiglist, MarketPlace in Facebook and many more. The field of real estate marketing or profit by marketing real estate is a very profitable field and you can start it now.
Real estate marketing: - Real estate marketing will not differ much from online marketing, so if you have previously worked in the field of online marketing, you will be able to start working in the field of real estate marketing easily. Real estate marketing can be divided into three stages only; the first stage is to find The real estate, for example, that you found an apartment, a mansion or a villa for sale at a certain price and with certain specifications, here comes the second stage, which is the stage of real estate marketing, so now the currency of promoting the property that you have found begins, and during this stage, you may face difficulty in the beginning, but with time and work you will master it, and finally the third stage which is fun to finish The deal between the seller and the buyer and you are the middle men, and of course, here the deal should end on profit for all, not only you.
How to earn from real estate marketing: The question here is can anyone work in the field of real estate marketing? The answer will definitely be no !! Because the real estate marketer must have some qualities or features in order to start working in this field, one of the most important of these qualities is dealing with society, meaning that you are not a shy person because you will not be able at this time to deal with people or specifically the seller and buyer, and there are other qualities. There are many that you should search for before starting work, as for how to find a property and promote it on social media, there are many ways you can learn and use it, as there are free real estate ads on many sites and you can access these sites and you can advertise your property for free like Craiglist, MarketPlace in Facebook and many more. The field of real estate marketing or profit by marketing real estate is a very profitable field and you can start it now.
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How to earn from real estate marketing: The question here is can anyone work in the field of real estate marketing? The answer will definitely be no !! Because the real estate marketer must have some qualities or features in order to start working in this field, one of the most important of these qualities is dealing with society, meaning that you are not a shy person because you will not be able at this time to deal with people or specifically the seller and buyer, and there are other qualities. There are many that you should search for before starting work, as for how to find a property and promote it on social media, there are many ways you can learn and use it, as there are free real estate ads on many sites and you can access these sites and you can advertise your property for free like Craiglist, MarketPlace in Facebook and many more. The field of real estate marketing or profit by marketing real estate is a very profitable field and you can start it now.
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