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| Re: abort low hwm [message #264342 is a reply to message #264323] |
Mon, 03 September 2007 01:25   |
alantany
Messages: 115
Registered: July 2007
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Senior Member |
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| Michel Cadot wrote on Mon, 03 September 2007 00:43 | Could you please precise the context?
What raise this question?
Regards
Michel
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Thanks ,Michel.
I met this word from Tom's <EXPERT ONE ON ONE 9i and 10g programming techniques and solutins>
He said,in ASSM,oracle maintains a low HWM and a HWM,when does a FTS,oracle will read blocks under the low HMW directly,the blocks between low HWM and HWM,oracle will references some info from the ASSM bitmap to conferm which blocks should be read......
I am very confuse with this,why there is a low hwm and what it used for?
Regards!
Alan
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