difference in type declaration

[Former Member]

Hi friends

can any one tell me what exactly is the differnce between the below 2 declrations

a) Types:

Begin of TY_STRUC1,

F1 type I,

F2 type P,

F3(10) type C,

F4(5) type N,

End of TY_STRUC1.

i have declared it using types .

b) data :

Begin of TY_STRUC1,

F1 type I,

F2 type P,

F3(10) type C,

F4(5) type N,

End of TY_STRUC1.

i have declared it using data statement.

can any one tell me technically what exactly is the difference between the above 2 declarations

Regards

Priyanka.

[Former Member]

with type you can allocate any data to that.

and next one can act as work area because it is a field string.

cheers

s.janagar

[Former Member]

Hello Priyanka,

When you declare something like a type, you can reuse it as a declaration type wherever required in your program, whereas the other data declaration, you can just directly use that as a structure..

Say for example, if you want to declare a structure similar to ty_struc1 in a subroutine, then you can declare there as

data : wa_struc type ty_struc1.

whereas if you have the use the other one, you need to use a 'like' statement.

[Former Member]

Priyanka,

Second one can be directly used as Work Area whereas for the first one you need to create work area again by using Data statement as shown below

Data: wa_struc1 type TY_STRUC1.

Check ABAPDOCU transaction for more examples on this.

Thanks,

Babu Kilari

[Former Member]

Hello,

When u are declaring using TYPES key word that is user specifed it will not allocate the memory.

If we declare using DATA key word it will take the memory......

[Former Member]

Hi Priyanka,

The system does not allocate memory when you declare using types. In the first case, you are just defining a template for an internal table. You can actually hold data, only if you create another internal table using "data" statement.

eg: data: wa_struct1 type ty_struc1.

Now you can use wa_struc1 in the program to hold data.

On the other hand, the second type of declaration, reserves memory area and hence can hold data during progtam execution.

Regards,

Shiny