AWS DMS(Database Migration Service)是一项用于在不中断现有应用程序的情况下迁移数据库的服务。它允许您将数据从一个数据库引擎(源)迁移到另一个数据库引擎(目标),并在迁移过程中进行数据转换。
以下是一个使用AWS DMS进行数据转换的示例解决方案,包含一些常见的代码示例:
创建AWS DMS任务:
import boto3
dms = boto3.client('dms')
response = dms.create_replication_task(
ReplicationTaskIdentifier='my-dms-task',
SourceEndpointArn='source-endpoint-arn',
TargetEndpointArn='target-endpoint-arn',
MigrationType='full-load',
TableMappings='table-mapping-json'
)
print(response)
定义数据转换规则:
{
"rules": [
{
"rule-type": "transformation",
"rule-id": "1",
"rule-name": "transform-column",
"rule-action": "rename",
"rule-target": "column-name",
"object-locator": {
"schema-name": "schema-name",
"table-name": "table-name"
}
}
]
}
设置源和目标数据库端点:
response = dms.create_endpoint(
EndpointIdentifier='source-endpoint',
EndpointType='source',
EngineName='source-engine',
ServerName='source-server',
Port='source-port',
DatabaseName='source-database',
Username='source-username',
Password='source-password'
)
print(response)
response = dms.create_endpoint(
EndpointIdentifier='target-endpoint',
EndpointType='target',
EngineName='target-engine',
ServerName='target-server',
Port='target-port',
DatabaseName='target-database',
Username='target-username',
Password='target-password'
)
print(response)
启动数据转换任务:
response = dms.start_replication_task(
ReplicationTaskArn='replication-task-arn',
StartReplicationTaskType='start-replication'
)
print(response)
请注意,上述示例中的代码只是一种实现方式,您需要根据您的实际情况进行相应的调整和修改。