What is the difference between UNIQUE CONSTRAINT and PRIMARY KEY? 1. There is no difference. 2. A PRIMARY KEY cannot be declared on multiple columns. 3. A UNIQUE CONSTRAINT cannot be declared on multiple columns. 4. A table can have multiple PRIMARY KEYS but only one UNIQUE CONSTRAINT. 5. A table can have multiple UNIQUE CONSTRAINTs but only one PRIMARY KEY.
7 14955Post New Satyam Interview Questions
how is calculated the quantity of weight in hot test xlpe?
What are the prime responsibilities of data integration administrator? : Sas-di
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Hi, Can any one tell me, what is roles and responsibilities for SAP-Security resource in 'Netweaver Identity Management'
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