Merge pull request #4204 from taosdata/Aries-Lee1991-patch-1
Update TAOS SQL-ch.md
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@ -90,7 +90,7 @@ TDengine缺省的时间戳是毫秒精度,但通过修改配置参数enableMic
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```mysql
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```mysql
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ALTER DATABASE db_name REPLICA 2;
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ALTER DATABASE db_name REPLICA 2;
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```
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```
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REPLICA参数是指修改数据库副本数,取值范围[1, 3]。在集群中使用,副本数必须小于dnode的数目。
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REPLICA参数是指修改数据库副本数,取值范围[1, 3]。在集群中使用,副本数必须小于或等于dnode的数目。
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```mysql
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```mysql
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ALTER DATABASE db_name KEEP 365;
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ALTER DATABASE db_name KEEP 365;
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