Data type can be regarded as data structure because we can define our own data type by using typed function. Data types are the category in which the variable are listed to hold the specific value and data structures are the way in which the values and variables are stored in the memory. The use of a data type called structures allows a collection of values possibly of different types to be treated as a single item. Each data structure is built up from the basic data types of the underlying programming language using the available data structuring facilities, such as
arrays & pointers
A structure is a collection of primitives or other structures. A pointer is a memory address. Comparison of the two is like comparing bowling balls to cinder blocks. You can say that a structure defines the layout of the data, while a pointer points to data that is a particular structure.
The structure tag is a type. The structure variable is an instance of that type.
What is the difference between data communication and telecommunication ?
pointer data type that carry address:of data type that has no name but both of them must have same data type. structures you can make your own data type: struct name put any data type you wants any functions.
Array is collection of data items of same data type.Enum is collection of data items of different data type.
A structure is a collection of primitives or other structures. A pointer is a memory address. Comparison of the two is like comparing bowling balls to cinder blocks. You can say that a structure defines the layout of the data, while a pointer points to data that is a particular structure.
The structure tag is a type. The structure variable is an instance of that type.
An Abstract Data Type is an interface that interacts with a data structure. A Data Structure is an implementation of the ADT. for example. If you were going to create a linked list you would create an Interface listing all the methods required by the list. Then in the linked list class you would code how the list uses these methods. Hope this helps :)
What is the difference between data communication and telecommunication ?
fundamental data type makes up the derived data type
pointer data type that carry address:of data type that has no name but both of them must have same data type. structures you can make your own data type: struct name put any data type you wants any functions.
Array is collection of data items of same data type.Enum is collection of data items of different data type.
An array is a collection of related data elements of same type.Structure can have elements of different types.An array is a derived data type.A structure is a programmer-defined data type.A struct can contain multiple data types, whereas an array can not.
A catalog is a set of tables which contains the definitions or descriptions of the database structure and its constraints. For example it could store the structure of each file +Type and Format of each data item stored in the file. A catalog is a type of schema and a schema is what defines a data elements and their interrelationships.
in homogeneous data structure all the elements of same data types known as homogeneous data structure. example:- array while there can b any type of data in non homogeneous data structure. example:- list
what is the difference between uniform and diverse charachteristics
The difference between varchar and nvarchardatatypes is that Nvarchar stores UNICODE data. If you have requirements to store UNICODE or multilingual data, nvarcharis your choice. Varchar stores ASCII data and should be your data type of choice for normal use.