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2ALTER DATABASE <DatabaseName> SET PARTNER FAILOVER;
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2ALTER DATABASE <DatabaseName> SET PARTNER FORCE_SERVICE_ALLOW_DATA_LOSS;
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2ALTER DATABASE <DatabaseName> SET PARTNER SAFETY FULL; --ÊÂÎñ°²È«,ͬ²½Ä£Ê½
3ALTER DATABASE <DatabaseName> SET PARTNER SAFETY OFF; --ÊÂÎñ²»°²È«,Ò첽ģʽ
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