Difference between work area and internal tables.

Hi I wanna know the difference between work area and internal tables.
what happend if i give with out header line in internal table.
also how to assosiate work area to internal table in that scenario.

Hi Balaji..
The internal table is an ABAP runtime object which has two parts the Body and the header.
Whereas a work area cannot have a body.. It is mere a field or group of fields which can hold values at runtime..
In the SAP higher versions mySAP ERP, the use of tables with header line is made obsolete.. But there is absolutely no problem with the same..
Just think that when you define an internal table with occurs or with header line statement, the system automatically creates a workarea with this table, using which you can access the contents in the bosy of tyhe table.. You can read a record from the table body to this header or add a record in the header to the internal table body..
When you work with a table ITAB without a header line, you can not use statements like READ TABLE, APPEND, INSERT etc without giving an explicit work area..
Suppose i have an internal table like:
DATA : itab TYPE STANDARD TABLE OF t001.
This table will not have a header with it.
If you will use APPEND itab. The compilor will give error.
Here i will create a work area with same structure of the table.
DATA : e_wa TYPE t001.
Now i will write:
APPEND e_wa TO itab.
READ TABLE itab INTO e_wa WITH KEY xxxxxx
LOOP AT itab INTO e_wa... etc..
In a better approach we use Field symbols with such tables, instead of structures
FIELD-SYMBOLS: <fs_itab> TYPE t001.
So,
LOOP AT itab ASSIGNING <fs_itab>
READ TABLE itab ASSIGNING <fs_itab> etc.. However we can not use field symbols in few cases..
I hope this will help you..
Thanks and Best Regards,
Vikas Bittera.
**Points for usefull answers**

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Difference between line type and internal table?

Hi..
I wanted to know, what is the difference between Line type and Internal Table?

Hi,
Before the 4.7 release in SAP if we want to define an internal table we have to write the defination using the occurs statement and we need to define all the fields using INCLUDE STRUCTURE or indidually all the fields ine by one.
From 4.7 release of R/3 SAP introduced the Line type concept and it's part of the ABAP OOPS concept. for internal table defination we don't need to use the occur statements. Instead INCLUDE structure we need to create a Line type for that structure in Se11 and then we can define the internal table like :
DATA : ITAB TYPE TABLE OF <LINE_TYPE>.
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Thanks,
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Work area and internal table

hi friends,
Please let me know when do we use work area and when do we use internal table.
Thanks in advance
Tina Wilson

Work areas are used with internal tables. For example if you have an internal table defined like this.
data: itab type table of mara.
This internal table can hold many rows of data, right? SO say you need to read this data. Well you will need to LOOP or READ the internal table, since this internal table has no header line(please to put the read data), you need to have a work area to put the data into.
data: wa like line of itab.
Loop at itab into wa.
endloop.
Now if you defined the internal table with a header line, there is no reason to have the work area and you can just do the same like this.
data: itab type table of mara with header line.
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endloop.
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The type of the database table and work area (or internal table)...

Hello
I am trying to use a database and select all records from it and store them into an internal table.
My code:
Select * from xixi_dbcurrency into table gt_currency.
The error:
"The type of the database table and work area (or internal table) "GT_CURRENCY" are not Unicode-convertible . . . . . . . . . .     "
Any suggestions?
Thank you

Hi Thomas,
Thank you for your inputs above.
But as you suggested is we use INTO CORRESPONDING FIELDS OF TABLE then it resolve the error.
But I have below piece of code:
DATA:    it_new_source TYPE STANDARD TABLE OF _ty_s_sc_1,
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SELECT * INTO CORRESPONDING FIELDS OF TABLE it_new_source
       FROM /bic/afao06pa100
       FOR ALL ENTRIES IN SOURCE_PACKAGE
       where /bic/fcckjobno = SOURCE_PACKAGE-/bic/fcckjobno
       and /bic/fcckjitid = SOURCE_PACKAGE-/bic/fcckjitid.
But since this is reading into corresponding fields of table the data load from one DSO to other DOS is running for long more that 15 hours and still not getting completed and giving dump.
So if I switch the search to below:
SELECT * FROM /bic/afao06pa100
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Can you please advice on this, as performance need to improve in start routine code.
Thank You.

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Hi,
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thanks,
regards,
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HI
Read below
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wrong inthis answer plz correct me..
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components. components. components."
Could any one help me out how to resolve this problem....
Thanks in advance

Hi Shyamal,
lvc_s_styl is a structure so you will get the same error.
for your select and update statement you dont need field "field_style".
regards
rea

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dear experts,
what is difference between bus.Area and plant?
thanks
Rajakarthik.

Hi
Plant and Business Area are not the same.
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http://help.sap.com/saphelp_46c/helpdata/en/5d/a77d80ec1111d2bc1000105a5e5b3c/content.htm
Re: Business Area and Plant
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Hi Frnds,
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Hi
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http://help.sap.com/saphelp_erp2005/helpdata/en/ff/277203deea11d3b5b4006094b9b0a5/frameset.htm

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I am swetha i have one doubt
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Hii..
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A company (say, ABC) is a huge company and has a variety of businesses under it. Let us say that it typically operates in 3 different domains like machinery manufacturing, trading and assembling of machine parts.
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or
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1. You can use these business areas if other company codes require the same areas
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The above was an example when the company wanted to separate entries according to the lines it operates in... the other case could be when it wants to find out profitability during its operations in cities and differentiates these cities into Business
Areas...
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Dunning Areas are organizational units that you use to process the dunning program for example, by division, or sales organization.
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In ECC versions we all know that we need to declare the internal tables without headerline, and for handling the internal tables we need to use exclusive work areas.
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Thanks and Regards,
Kathir

Hi
DATA: WA TYPE ITAB.
LOOP AT ITAB INTO WA.
IF WA-FIELD = .....
ENDIF.
ENDLOOP.[(code]
FIELD-SYMBOLS <WA> TYPE ANY.
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Anyway you can create a field-symbols strcturated like the table:
[code]FIELD-SYMBOLS <WA> TYPE ITAB.
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The differnce between the field-symbols and work-area is the field-symbol is assigned directly to the record, so u don't need to do a MODIFY statament to change something:
LOOP AT ITAB INTO WA.
WA-FIELD =
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LOOP AT ITAB ASSIGNING <WA>.
<WA>-FIELD =
ENDLOOP.
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Max

Difference between work area and internal tables.

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