HOW DOES COMPRESSION OF AN INFOCUBE INCREASE THE LOAD PERFORMANCE?

Hi all
I see that Compression of infocube is one of the parameters to improve/increase load performance. If I am not wrong, Can some one please explain how compressing a cube improves the load performance?
Thanks in advance
Rishi

Hi,
I see that Compression of infocube is one of the parameters to improve/increase load performance. If I am not wrong, Can some one please explain how compressing a cube improves the load performance?
As per my information Compression improves the Quaer performance not loading perforamnce
when u do compression the same characterstics which are having the same values those records will be moved to E Fact table
ex Custno   Mat NO Qty   Value
      C101     M101     10      100
      c101     m101      20      200
when u do comperession the recors will be compressed as below
c101   m101 30 300
when the query execution instead of reading two reocrds and compressing at the time of producing output at report level
but when already compressed it fetchs one record directly form E table like that the query perforamnce will be improved.
Not loading perforamnce.
Thansk & regards,
sathish

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