Entity Relationship Diagram (ER Diagram) in Tamil (DBMS Course in Tamil) [Class - 16]

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******************** In this video tutorial we going to learn ER Model in detail,
An Entity-relationship model (ER model) describes the structure of a database with the help of a diagram, which is known as an Entity Relationship Diagram (ER Diagram). An ER model is a design or blueprint of a database that can later be implemented as a database. The main components of E-R model are entity set and relationship set.
What is an Entity Relationship Diagram (ER Diagram)?
An ER diagram shows the relationship among entity sets. An entity set is a group of similar entities and these entities can have attributes. In terms of DBMS, an entity is a table or attribute of a table in a database, so by showing a relationship among tables and their attributes, the ER diagram shows the complete logical structure of a database.
Here are the geometric shapes and their meaning in an E-R Diagram. We will discuss these terms in detail in the next section(Components of an ER Diagram) of this guide so don’t worry too much about these terms now, just go through them once.
→ Rectangle: Represents Entity sets.
→ Ellipses: Attributes
→ Diamonds: Relationship Set
→ Lines: They link attributes to Entity Sets and Entity sets to Relationship Set
→ Double Ellipses: Multivalued Attributes
→ Dashed Ellipses: Derived Attributes
→ Double Rectangles: Weak Entity Sets
→ Double Lines: Total participation of an entity in a relationship set
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For more details: www.programmingline.com/database
Video Credits: Abirami
Disclaimer: Thanks Abirami for contributing this video for this channel. I have paid Abirami for doing this video exclusively for this channel.
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[@raazfathima4859]

Such a beautiful Explanation
thank you
From Sri Lanka

[@kinthukinthu6328]

hi im from srilanka

[@linthujanvimalanathan4749]

i am also srilanka
hndit

[@SathishKumar-vb7ug]

Your teaching so nice.❤️

[@gokulmani4989]

Simple, clear and great explanations of concept

[@ProgrammingLine]

Glad you liked it

[@madrasmediatech]

Super ❤❤❤❤❤

[@mohammedarshad9318]

superb explanation

[@thavakumaranthavapavan]

Vere level teaching thank you

[@kishoshanth5957]

Amazing lecture Madam . I

[@user-sp2fb6ev4z]

tnq

[@raghavgaming6895]

Good explanation good job👍...

[@ctboobashb3621]

Thank you for your explanation

[@sahisahi5812]

Thank you miss

[@tamilinfo2066]

super explaination good

[@kowsalya0059]

super sister.your teaching very nice

[@ProgrammingLine]

I will convey ur appreciation to her

[@BLACKClOUDSwithNature]

Super akka

[@ProgrammingLine]

Thank you very much!!! Happy learning!!!

[@_heart_catcher_6418]

Usefull video

[@kopikanbalachandran5816]

Great miss really

[@reshmakumar6389]

Thank you ❤

[@ProgrammingLine]

welcome

[@g.jesinth12a14]

Mam can u explain the property management system
Includes table name property,owner, tenant, payment, Number of Units

[@mahathi1819]

Thank you mam

[@abishektamilan9733]

Tnx Mam

[@mokimanik8721]

Centralized database system pathi potuga athavathu advantage disadvantage and purpose

[@karthickeyann245]

❤️❤️❤️

[@SathishKumar-vb7ug]

Hlo Ma'am. Can u please teach me ATC (automata theory and computability) subject Ma'am it's very difficult Ma'am.i am very troubling

[@kaykay5785]

yarachum drwing panni thangaa plz

[@kaykay5785]

miss oru senariokku ERD drwing panni thanga miss plz

[@dhivyabharathi99]

ER notation ah pathi sollunga sis

[@kaykay5785]

senario send panalam plz

[@kaykay5785]

hi

[@kaykay5785]

replay miss

[@madviper3446]

Konjam better ah teach panalam some mistakes are there