Re: High cell single Block physical Read

I checked and found that in 10046 trace, there are around 1mil rows with obj#=0 and around 100K with obj#=540334 which is the object I am updating.  Sanjay

    On Wednesday, December 13, 2017 7:33 PM, Sanjay Mishra <dmarc-noreply_at_freelists.org> wrote:  

 Hi
I am running an update on Advance row compress table by selecting data from another table on Unique Seq No. Runing Select from other table is very fast and even running Select instead of update columns is very fast BUT WHEN update comes, it is taking almost an hour to just update 5 mil Records. Does Compress for OLTP be factor for so many single block phsuicall Read as I am monitoring the trace and what it is doing is name='cell single block physical read' ela=1511 celhas=12345555 diskhash=12345555 bytes=8192 obj#0 time=11111111name='cell single block physical read' ela=1511 celhas=12345555 diskhash=12345555 bytes=8192 obj#540334 time=11111111

So can see doing this against obj#0 and obj#540334 Any help is appreciated.
TIASanjay    

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