Internal table work area.

[Former Member]

Hi experts,

I understand internal table work area holds only one record at time while writting data from data base server, then data will be moved to internal table body with the help of append itab statment,so internal table workarea holds last record of database table,but if you want present data to front end interanl table work area is must. is it over write data in internal workarea last record with record 1 at the time of data presenting to peresentation layier.

plz clear my doubt.

Regards.

hari

[Former Member]

Hi hari,

1. Work area comes into picture

when we use loop, apppend, etc

or directly refer to field

eg. itab-field1.

2. When we use,

select * from t001

into TABLE Itab,

then work area does not come into picture.

It directly puts data in the body.

regards,

amit m.

[Former Member]

with index u can over write.

read table itab into <wa> index 1.

[Former Member]

Hi Hari,

When U use clear statement the header will be cleared.

This is what U should do when appending an internal

table.

Surely it will over write the header data when looping

the Internal table.

But it's a good practice to clear off the contents

in the internal table.

Regards,

GSR.

[Former Member]

Hi

You should re-read the internal table using the index of the record you need to show.

If you want to show the first record:

READ TABLE ITAB INDEX 1.

Now the header line have the data of the first record.

Max

[Former Member]

Hi,

operations on data base to internal table(like fetching it from DB )not required any work area .

but operations on internal table requires work area for write the itab-fields or modify , append it requires work area.

Regards

vijay