使用AWS DMS的task设置“include-tables”参数来指定需要迁移的表格，并为不同模式的表格分别创建task。示例代码如下：

创建一个迁移源为RDS实例的task，迁移RDS中默认模式（public）下的“orders”表格：

{
    "ResourceArn": "arn:aws:rds:us-west-2:123456789012:db:test-source",
    "MigrationType": "full-load",
    "FullLoadSettings": {
        "TargetTablePrepMode": "TRUNCATE_BEFORE_LOAD",
        "CreatePkForRethinkDb": true
        },
    "TableMappings": "{\"rules\":[{\"rule-type\":\"selection\",\"rule-id\":\"1\",\"rule-name\":\"1\",\"object-locator\":{\"schema-name\":\"public\",\"table-name\":\"orders\"},\"rule-action\":\"include\",\"filters\":[]}]}",
    "TargetEndpointArn": "arn:aws:dms:us-west-2:123456789012:endpoint:test-target"
}

在上述代码中，我们使用了“TableMappings”属性来指定要迁移的表格，将“schema-name”设置为“public”，表格名称设置为“orders”。

在创建另一个task时，将上述代码中“schema-name”修改为要迁移的另一个模式名称即可。如：

{
    "ResourceArn": "arn:aws:rds:us-west-2:123456789012:db:test-source",
    "MigrationType": "full-load",
    "FullLoadSettings": {
        "TargetTablePrepMode": "TRUNCATE_BEFORE_LOAD",
        "CreatePkForRethinkDb": true
    },
    "TableMappings": "{\"rules\":[{\"rule-type\":\"selection\",\"rule-id\":\"1\",\"rule-name\":\"1\",\"object-locator\":{\"schema-name\":\"sales\",\"table-name\":\"orders\"},\"rule-action\":\"include\",\"filters\":[]}]}",
    "TargetEndpointArn": "arn:aws:dms:us-west-2:123456789012:endpoint:test-target"
}