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ORA-12808: cannot set string_INSTANCES greater than number of instances string

ORA-12808: cannot set string_INSTANCES greater than number of instances string
Cause: An attempt was made to set SCAN_INSTANCES or CACHE_INSTANCES using the ALTER SYSTEM command to a value larger than the number of available instances.
Action: See the accompanying message for the current allowable maximum value, or set SCAN_INSTANCES / CACHE_INSTANCES to ALL.

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小智
ORA-12808:不能设置字符串 _INSTANCES大于实例数字串,
.原因:试图使用ALTER SYSTEM命令将SCAN_INSTANCES或CACHE_INSTANCES设置为大于可用实例数的值。,
.操作:请参阅附带的消息以获取当前允许的最大值,或将SCAN_INSTANCES / CACHE_INSTANCES设置为ALL。,
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