In a Well-Structured Relational Database

question 76

Multiple Choice

In a well-structured relational database,

• A) every table must be related to at least one other table.
• B) every table must be related to all other tables.
• C) one table must be related to at least one other table.
• D) one table must be related to all other tables.

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Definitions:

Ethers

A class of organic compounds characterized by an oxygen atom connected to two alkyl or aryl groups, used as solvents and in the synthesis of other chemicals.

Diethyl Ether

An organic compound, commonly used as a solvent, with the formula \(C_2H_5OC_2H_5\).

Cyclic Ethers

Organic compounds that contain an ether group (-O-) within a ring structure.

Grignard Reagent

Grignard reagent is a type of organomagnesium compound used in organic synthesis, typically represented as RMgX, where R is an organic group and X is a halogen.