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In Some Business Environments, the Database Designer Also Enters the Data

question 37

Multiple Choice

In some business environments, the database designer also enters the data into the database. In Kate’s large banking firm, however, the actual database entries are not made by the database designers.

After perusing the database, Kate has discovered that one data entry operator might enter a telephone number as 555-555-7777, another as (555) 555-7777, and a third as 1-555-555-7777. When multiple data entry operators enter telephone numbers in different formats, it becomes difficult to produce nicely formatted reports or to locate a particular telephone number.

-To make sure that a field contains all unique values,Kate wants to set up the database so that it will search every existing record for duplicates.What will accomplish this goal for Kate?

Definitions:

Tax Liability

The total amount of tax that an individual or entity is legally obliged to pay to a taxing authority based on their income, assets, or activities.

Taxable Income

The amount of an individual's or a company's income used to determine how much tax they owe to the government in a given year.

Subsidy Benefit

A financial advantage or aid given by the government or another organization to support an entity, reducing its costs.

Marginal Tax Rate

The rate at which the last dollar of income is taxed, indicating the rate of tax that applies to each additional dollar of income.