geek/talk: Web publishing business discussion - View Single Post - What's the difference between a primary key and a unique key in SQL?

Brianvoges · 10-23-2019, 06:22 AM

Unique Key (UK): It's a column or a group of columns that can identify a uniqueness in a row.

Primary Key (PK): It's also a column or group of columns that can identify a uniqueness in a row.

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10-23-2019, 06:22 AM	#3
Brianvoges Registered User Join Date: Aug 2015 Posts: 29	Unique Key (UK): It's a column or a group of columns that can identify a uniqueness in a row. Primary Key (PK): It's also a column or group of columns that can identify a uniqueness in a row. Corporate Gifts Suppliers in Delhi \| Corporate Gifts Suppliers in Noida \| Corporate Gifts Suppliers in Gurgaon