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docs/MatrixOne/Reference/SQL-Reference/Data-Definition-Language/restore-snapshot.md

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## 语法说明
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`RESTORE ... FROM SNAPSHOT` 用于从之前创建的集群/租户/数据库/表级别的快照中进行集群/租户/数据库/表级别的恢复数据。
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`RESTORE ... SNAPSHOT` 用于从之前创建的集群/租户/数据库/表级别的快照中进行集群/租户/数据库/表级别的恢复数据。
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## 语法结构
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```sql
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RESTORE CLUSTER FROM SNAPSHOT <snapshot_name>;
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RESTORE CLUSTER {SNAPSHOT = <snapshot_name>};
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RESTORE ACCOUNT <account_name> {SNAPSHOT = <snapshot_name>} [TO ACCOUNT <target_account_name>];
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6 rows in set (0.01 sec)
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--在系统租户 sys 下执行
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restore cluster FROM snapshot cluster_sp1;--在系统租户下对集群进行快照恢复
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restore cluster{snapshot="cluster_sp1"};--在系统租户下对集群进行快照恢复
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--在租户 acc1,acc2 下执行
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mysql> show databases;--恢复成功

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