abap 4 data type

[Former Member]

Hye Friends,

Can u tell me when to use C data type and when to use N datatype??

apart from character and numeric character what are the more differences between these two??

Thnks in advance.

Sunny

[Former Member]

Data consists of strings of bytes in the memory area of the program. A string of related bytes is called a field. Each field has an identity (a name) and a data type. All programming languages have a concept that describes how the contents of a field are interpreted according to the data type.

In the ABAP type concept, fields are called data objects. Each data object is an instance of an abstract data type. Data types in ABAP are not just attributes of fields, but can be defined in their own right. There are separate name spaces for data objects and data types. This means that a name can at the same time be the name of a data object as well as the name of a data type.

Data Types:

As well as occurring as attributes of a data object, data types can also be defined independently. The definition of a user-defined data type is based on a set of predefined elementary data types. You can define data types either locally in the declaration part of a program (using the TYPES statement) or globally in the ABAP Dictionary. You can use your own data types to declare data objects or to check the types of parameters in generic operations.

Data types can be divided into elementary, reference, and complex types

Kishi.

[Former Member]

hi,

when u have to use alphanumeric in ur variable use N data type,

and when u have to use only character in ur variable use C data type.

Regards

Santosh

[Former Member]

one more difference is initial value of C is space and for N is 0

[Former Member]

Hi,

Data type C can b used for bothe character and numeric values. it Accepts both. But when its specifically numeric values only, u can use data type N.

some of the links below for data types may b useful for u:

1.http://help.sap.com/saphelp_nw04/helpdata/en/79/c5545eb3dc11d5993800508b6b8b11/frameset.htm

2.http://help.sap.com/saphelp_nw04s/helpdata/en/43/5d2ea0e84b3e2be10000000a1553f6/frameset.htm

>>>Reward points if useful<<<

All the best.

[Former Member]

thanks