Most DBMS Products Will Let You Define a Primary Key

question 32

True/False

Most DBMS products will let you define a primary key on a column that contains null values.

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Definitions:

Volume Variance

A financial metric that measures the difference between the expected sales volume and the actual sales volume.

Spending Variance

The difference between the budgeted or standard cost of something and its actual cost, which can indicate areas of inefficiency or savings.