Topic: SQL*Plus and PL/SQL >> Help Needed
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| sib |
Posted: May 02, 2007 02:32:59 AM |
Total Post: 9
Joined: Nov, 2006
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Whether the ordering of the composite index key matters
for example if i am having cus_id and anum(arabic numeric) whether the performance will differ if i place cus_id first and anum next or vice-versa.
Pls give me your opinion..
Thanks
Sib |
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 Rush |
| Posted: May 03, 2007 12:09:47 AM |  |
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Total Post: 127
Joined: Jan, 2007
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hi,
if you have more than one column in an index then you need to select that column in your select stmnt which is a key(primary,unique,f.k etc..)thus the perfomance of index will increase.
thanks
RUPESH
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| jolly |
| Posted: May 03, 2007 12:39:32 AM | |
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Total Post: 8
Joined: Apr, 2007
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according to my knowledge it wont matter much
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