Code Inspector Checks

Hi All,
I am doing Code Inspector Check for my Program.
Doing this, I am getting an Error Message Indicating to use TYPE TABLE OF instead of OCCURS 0 statement while declaring Internal Tables.
Question is, Is there any difference between TYPE TABLE OF and OCCURS 0 (Performance wise) ?
Helpful answers will be rewarder by points.
Thanks & Regards
Swatantra Pathak

HI,
Yes.
OCCURS 0 is obsolete now.
When we define internal table with OCCURS 0 it will allocate a default memory of 8KB. In TYPE TABLE/STANDARD TABLE OF it is dynamic i.e as and when we get a record memory will be allocated.
eg: If ur itab is with OCCURS 0 and u have data of size 2kb then 6KB memory is wasted i.e allocated and not used.
eg2: If ur itab is with OCCURS 0 , Each record accupies 1 KB. Then after filling 8 records and at the time of getting 9 th records another 8KB is allocated. If u have 9 records in ur table then 7KB is wasted.
If u r getting allocated with some memory(Resource) and not using means performancewise it is bad.
Hope above examples are clear.
Thanks,
Vinod.

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