topic Re: Types and data in Application Development and Automation Discussions

Types and data

Former Member — Tue, 02 Oct 2007 15:36:51 GMT

What is the difference between Types and data declarations

Thanks

Durga Prasad

Re: Types and data

Former Member — Tue, 02 Oct 2007 15:38:36 GMT

data declarations is when you declare your data types.

Re: Types and data

Former Member — Tue, 02 Oct 2007 15:45:36 GMT

Hi Durga Prasad,

Types is actually used to create a user-defined type of data type and Type is used to refer existing data type.

Data Declarations is used to refer a variable or constant using a data type.

Hope this helps.

Please reward if useful.

Thanks,

Srinivasa

Re: Types and data

ferry_lianto — Tue, 02 Oct 2007 15:46:10 GMT

Hi,

TYPES just gives you the prototype and will not assign any memory for the data. Whereas DATA will assign memory for the variables. Using TYPES you can create user defined data types.

For example:


TYPES: T1(10) TYPE c.

DATA: S1 TYPE T1.

S1 = 'ABCDEFG'.

WRITE: S1.

Here T1' is just an user defined data type of string length 10 and does not occupy any memory since it is a prototype. However S1 is occupies 10 bytes of memory.

Regards,

Ferry Lianto

Re: Types and data

Former Member — Tue, 02 Oct 2007 16:14:42 GMT

Hi,

The functionality is almost same for Types and Data.

Types is used to declare a variable of predefined data type which is declared in data dictionary.

Like is used to refer to the data which has been already defined. For example, in implementing enhancements, u will be need to do some customization to the exising code. so you will declared using like statment.

example: data: ls_likp like xlikp.

Regards,

Niyaz