Difference between a primary key and a unique key | Integrity Constraints dbms in 2023
Hey There Dev Champ…This video is a short video of complete details on Integrity Constraints in dbms. You can access the full video from the link above or in the description below:
Questions answered in this video:
1) what is the difference between a primary key and a unique key?
2) What is a primary key constraint?
3) What are the examples of primary key constraint?
4) What is a unique key constraint?
5) What are the examples of unqiue key constraint?
6) what is the difference between a primary key and a unique key constraint?
Integrity Constraints refer to the fact, that data remains consistent and complete after any insertion, deletion or updation of data in the table,
And all this is required to maintain the quality and accuracy of data in database. To ensure this, we need to apply different constraints on the columns of a table.
All these constraints are generally known as Integrity Constraints.
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what is the difference between a primary key and a unique key | Primary key vs Unique Key Constraint | Integrity Constraints dbms in 2023
most commonly asked SQL interview question
Top Moments in this Lecture:
0:00 Introduction
0:23 Link of Complete Lecture on Integrity Constraints in dbms
0:31 Unique Constraint in dbms
0:45 Example of Unique Constraint
1:14 Primary Key Constraint
1:51 Example of Primary Key Constraint
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