A data user is someone who controls the collection, holding, processing, or the use of the data. As examples:
Collection
Holding
Processing
Use of Data
To bring this down to an everyday experience, let's talk about a 10th grade student assigned to write a 15 page term paper on the fall of the Berlin Wall. The student:
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There is no such data type. However, when we use user-defined data types of our own type, then that type of data can be stored in a variable. So as a term, you may say that user-defined data type can store any data. As the data-type used in any variable will be depending upon us.
to create user defined functions the user defined data is needed nd its useful to the programmer to create its own data.
String - is primitive data typestring - is user defined data type
metadata
yes, a structure is a user-made data type so that user can manipulate multiple data types simultaneously. a structure covers up sum limitation of arrays as in it provides heterogenous data type.