What is foreign key, unique key? difference between them.

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Foreign key and unique key are both used to enforce data integrity in a database, but they serve different purposes.
A foreign key is a field in a table that refers to the primary key of another table,...read more
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Popular interview questions of Software Engineer
A Software Engineer was asked Q1. What does PHP stand for?
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A Software Engineer was asked Q3. How can I fetch the 1st, 2nd, and 3rd rank from a student mark table?
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Pitangent Analytics & Technology Solutions Software Engineer Interview Questions
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