FALSE : it means that the parameter cannot change its value in the lifetime of the instance; the database needs to be restarted for changes to take effect.
IMMEDATE: value means that it is dynamic and can be set to change the present active instance as well as future database restarts.
DEFERRED: is also dynamic, but changes only affect subsequent sessions, currently active sessions will not be affected and retain the old parameter value.(对后面的session才生效)
IMMEDATE: value means that it is dynamic and can be set to change the present active instance as well as future database restarts.
DEFERRED: is also dynamic, but changes only affect subsequent sessions, currently active sessions will not be affected and retain the old parameter value.(对后面的session才生效)
解决方案 »
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