topic Re: regarding performace in Application Development and Automation Discussions

regarding performace

Former Member — Tue, 13 Mar 2007 08:35:13 GMT

Hi friends,

1)which one is better in the below statements.

Read to get the data. Later using ' move ' to move to internal table

(or)

Loop moving the data to internal table...endloop

2) if i want the first two records to be displayed from my internal table what i have to do.

Re: regarding performace

Former Member — Tue, 13 Mar 2007 08:38:26 GMT

2) if i want the first two records to be displayed from my internal table what i have to do. 

  loop at itab from 1 to 2.
     write : / itab-field1.
  endloop.

Re: regarding performace

Former Member — Tue, 13 Mar 2007 08:40:24 GMT

1 ->If you want to access one record then READ is the

best form to use.

If you have more than 1 record to be moved, the use

the LOOP.

2 ->Use the LOOP FROM .. TO.. form of loop statement.

Re: regarding performace

Former Member — Tue, 13 Mar 2007 08:46:02 GMT

Hi satya,

Your first question is not clear?

Message was edited by:

Chandrasekhar Jagarlamudi

Re: regarding performace

Former Member — Tue, 13 Mar 2007 08:53:12 GMT

read with binary search is always preferred for better performance..

sort the internal table with the required keys before using read on that table.

loops cant be avoided in specific conditions...

regards,

madhu

Re: regarding performace

Former Member — Tue, 13 Mar 2007 11:57:58 GMT

hi,

1. Loop is used when you want to check the condition for all the table entries(more than one entry for some condition). and read is used when there is only in one record for the condition specified in your internal table(only one entry for condition).

2. You can simply read the records with index(provided you know the index).

read table itab index 1.

read table itab index 2.

However, this is only when you know which index to be read or if there is some condition then you can use where clause with binary search(You have to sort the internal table before this). Otherwise You have to use loop through the table.

Regards,

Richa.