abap dictionary

[Former Member]

WHAT'S DIFFERENCE B/W CLEAR,REFRESH,FREE?

REGARDS,

VIJAY KUMAR

[Former Member]

hi,

clear and refresh are used to clear the contents of the workarea and internal table respectively...

free deletes the contents and deallocates the memory assigned to the internal table.

regards

padma

[Former Member]

hi,

clear clear the header of internal table

refresh delete all data from internal table

free initilise memory

mukesh

[Former Member]

Hi

Free - You can use FREE to initialize an internal table and release its memory space without first using the REFRESH or CLEAR statement. Like REFRESH, FREE works on the table body, not on the table work area. After a FREE statement, you can address the internal table again. It still occupies the amount of memory required for its header (currently 256 bytes). When you refill the table, the system has to allocate new memory space to the lines.

Refresh - This always applies to the body of the table. As with the CLEAR statement, the memory used by the table before you initialized it remains allocated. To release the memory space, use the statement

Go through the link given below :

With Regards

Nikunj Shah

[Former Member]

Vijay,

welcome to SDN i feel you not read rules of forum before posting.

i would suggest first interview wuestion are not allowed.

am sure if you search in SDN with appropriate term like

use of clear refresh you will definately get answer.

Amit

[anversha_s]

hi,

free - will release the memory.

refresh - will delete the contents of itab

clear - will delete onlyh the work area.

for more chk this link

http://help.sap.com/saphelp_nw2004s/helpdata/en/fc/eb384e358411d1829f0000e829fbfe/content.htm

Regards,

Anversha

[former_member787646]

Hi

REFRESH: deletes the data from the body of an internal table.

CLEAR: deletes the data from the header line of an internal table if the internal table has header line,

otherwise deletes the data from the body.

FREE: frees the memory of the deleted records.

Hope it helps.

Murthy

[Former Member]

hiiii

CLEAR-> clear the header line of an internal table

REFRESH-> delete the body of the internal tables means it removes data

FREE-> remove the internal table from the memory.it removes data and header everything means it makes that memory free.

regards

twinkal

[Former Member]

Hi,

Clear : its Clears the workarea..

refresh : it clears the internal table. with header line..

free : it clears the data as well as memory.....

[Former Member]

hi,

CLEAR : clear the work area

REFRESH: is the clear the inertable table body fields

FREE: is the clear the internal table momery

CLEAR[]: is the same as REFRESH

regards

BHUPAL

[Former Member]

This message was moderated.

[Former Member]

clear: clear the content the header line if it is with header line, if it is with ut header line then it will clear the body.

clear variable clear the variable content.

Refresh: refresh the contents(if table with header line or with out headerline)

free: will release the memory.

[Former Member]

Hi Vijay.

I would like to suggest a few references,

[SDN - Reference for difference between refresh, clear and free and Its usage|;

[SDN - Reference for free, refresh, clear, delete - Difference |;

[SDN - Reference for Use of Refresh and Clear|;

[SDN - Reference for Releasing Memory from Internal Tables|;

Hope that's usefull.

Good Luck & Regards.

Harsh Dave

[Former Member]

Hi,

clear:

it clears the content in both the work area and the internal table.

Refresh:

it clears only the content in the body of the internal table but the memory remains as it is.

Free:

It also clears only the content in the body of the internal table and it also frees the memory allocated to the data.