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What is a primary key?

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06-01-2018, 10:04 AM	#1
Pavan Techn Registered User Join Date: Mar 2018 Posts: 341	What is a primary key? A primary key is a combination of fields which uniquely specify a row. This is a special kind of unique key. Primary key values cannot be NULL. __________________ Bulk SMS services provider in Coimbatore\|Software Development Company in Coimbatore\|Web design company in Coimbatore \|erp Crm software in coimbatore

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