_____ Databases Rely Upon Concurrency Control by Locking Database Records

question 37

Multiple Choice

_____ databases rely upon concurrency control by locking database records to ensure that other transactions do not modify the database until the first transaction succeeds or fails,and as a result,can suffer from slow performance.

• A) Query by Example (QBE)
• B) Access
• C) Structured Query Language (SQL)
• D) Data manipulation language (DML)

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Definitions:

Net Income

The consummate earnings of a company following the subtraction of all operational costs and tax liabilities from its gross revenue.

Dividends

Payments made by a corporation to its shareholders, usually from profits.

Equity Method

An accounting technique used by companies to assess the profits earned by their investments in other companies, where the investment is recorded initially at cost and adjusted thereafter for the post-acquisition change in the investor's share of the investee's net assets.

Gross Profit

The profit a company makes after deducting the costs associated with making and selling its products, or the costs associated with providing its services.