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Re: How to safely remove parameter

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Hello Antonio,

 

1-Normally you can find the spfile and pfile (mostly initSID.ora) under this path: /oracle/SID/102_64/dbs/ .

2-You can use primitive Oracle parameter check script which is attached to that note.

 

My recommendation here is just takin a backup of your spfile and then reset the parameter:

For example:

cp -p spfileSID.ora spfileSID.oraORIG

sqlplus > alter system OPTIMIZER_FEATURES_ENABLE scope=spfile sid='*';

 

If that OPTIMIZER_FEATURES_ENABLE parameter is an online one you won't need a restart and if so you can use that command:

sqlplus > alter system OPTIMIZER_FEATURES_ENABLE scope=both sid='*';

 

"Both" forces updating both spfile and real-time (in-run) value of the parameter.

 

Regards,

Serhat


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