whats basic difference between data and types while declearing the itab

[former_member181995]

whats basic difference between data and types while declearing the internal tables...

DATA : BEGIN OF t_vbap OCCURS 0,

vbeln1 LIKE vbap-vbeln,

posnr LIKE vbap-posnr,

kwmeng LIKE vbap-kwmeng,

netpr LIKE vbap-netpr,

netwr LIKE vbap-netwr,

werks LIKE vbap-werks,

matnr LIKE vbap-matnr,

arktx LIKE vbap-arktx,

END OF t_vbap.

vs

TYPES : BEGIN OF t_vbap,

vbeln1 LIKE vbap-vbeln,

posnr LIKE vbap-posnr,

kwmeng LIKE vbap-kwmeng,

netpr LIKE vbap-netpr,

netwr LIKE vbap-netwr,

werks LIKE vbap-werks,

matnr LIKE vbap-matnr,

arktx LIKE vbap-arktx,

END OF t_vbap.

and vs

TYPES : BEGIN OF t_vbap,

vbeln1 LIKE vbeln,

posnr LIKE posnr,

kwmeng LIKE kwmeng,

netpr LIKE netpr,

netwr LIKE netwr,

werks LIKE werks,

matnr LIKE matnr,

arktx LIKE arktx,

END OF t_vbap.

[Former Member]

Hi Amit,

DATA : BEGIN OF t_vbap OCCURS 0,

This will create an internal table

whereas TYPES : BEGIN OF t_vbap

This will create just a structure .

Regards,

Sree.

PS: Reward points if Useful.

[Former Member]

Hi,

1. TYPES statement defines the structure without allocation of memory, DATA statements allocate the memory at runtime.

2. Create a structure by using types statement and refer it by using the DATA statement.

3. In order to avoid the internal table declaration without header line, we are declaring a structure by types statemnet and declaring an internal table with reference to the structure.

***do reward if usefull

vijay

[Former Member]

use types and delcare structure.

then declare internal table.

ex-

types: begin of ty_lfa1,

kunnr like kna1-kunnr,'end of ty_kna1.

data : i_kna1 type standard table of ty_kna1 with header line.

regards

Suresh.D

[Former Member]

hi,

like -> used for refering existing data elements in data dictionary or in sap

type -> used for refering existing data types in sap.

types: used for creating used defined structure of tables which has fields from more tahn one table.

diff b/w types and type in creation of internal tables is that when u create a table with types then u can use same for work area creation also.

ex:

TYPES : BEGIN OF t_vbap,

vbeln1 LIKE vbeln,

posnr LIKE posnr,

kwmeng LIKE kwmeng,

netpr LIKE netpr,

netwr LIKE netwr,

werks LIKE werks,

matnr LIKE matnr,

arktx LIKE arktx,

END OF t_vbap.

data: itab1 type t_vbap

wa_itab1 type t_vbap.

when type is used then u have to create a defintion of work area for another time when internal table doesnt have headr line as

ex:

DATA : BEGIN OF t_vbap OCCURS 0,

vbeln1 LIKE vbap-vbeln,

posnr LIKE vbap-posnr,

kwmeng LIKE vbap-kwmeng,

netpr LIKE vbap-netpr,

netwr LIKE vbap-netwr,

werks LIKE vbap-werks,

matnr LIKE vbap-matnr,

arktx LIKE vbap-arktx,

END OF t_vbap.

DATA : BEGIN OF wa_vbap,

vbeln1 LIKE vbap-vbeln,

posnr LIKE vbap-posnr,

kwmeng LIKE vbap-kwmeng,

netpr LIKE vbap-netpr,

netwr LIKE vbap-netwr,

werks LIKE vbap-werks,

matnr LIKE vbap-matnr,

arktx LIKE vbap-arktx,

END OF wa_vbap.

if helpful reward soem points.

with regards,

suresh.