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Question

A notation for defining the form and structure of data is known as.

A
Data description language
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B
Binary language
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C
Data channel
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D
Data definition language
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E
None of the above
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Solution

The correct option is D Data definition language

A notation for defining the form and structure of data is known as Data definition language.

A data model explicitly determines the structure of data. Data models are specified in a data modeling notation, which is often graphical in form. A data model can sometimes be referred to as a data structure, especially in the context of programming languages.

Data Definition Language (DDL) is a standard for commands that define the different structures in a database. DDL statements create, modify, and remove database objects such as tables, indexes, and users. Common DDL statements are CREATE, ALTER, and DROP.

A data definition language or data description language (DDL) is a syntax similar to a computer programming language for defining data structures, especially database schemas.


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