Question

The y Primary key field can not be​

Answer 1

Answer:

The value of primary key should be unique for each row of the table. The column(s) that makes the key cannot contain duplicate values. The attribute(s) that is marked as primary key is not allowed to have null values. Primary keys are not necessarily to be a single attribute (column).

Answer 2

Explanation:

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sweet morning for sweet person

dance karna ata hai ya nahi.