Which of the Following Is Not a Constraint Type in Oracle

question 49

Multiple Choice

Which of the following is not a constraint type in Oracle 12c?​

• A) ​CHECK
• B) ​UNIQUE
• C) ​NOT NULL
• D) ​REFERENCE

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Definitions:

Stock Index

A measurement of a section of the stock market calculated from the prices of selected stocks, representing a specific market or sector.

Futures Contracts

Financial contracts obligating the buyer to purchase an asset or the seller to sell an asset, such as a physical commodity or a financial instrument, at a predetermined future date and price.

Electronic Networks

Systems or platforms that facilitate the trading of financial instruments, such as stocks and currencies, digitally and without a physical trading floor.

Trading Pits

Physical locations on the floor of some exchanges where traders use open outcry and hand signals to buy and sell commodities or financial instruments.