Question

我正在尝试使用AWS数据库迁移服务（DMS）从S3填充SQL Server 2014表。我有以下S3架构：

{
  "TableCount": "1",
  "Tables": [
    {
      "TableName": "employee",
      "TablePath": "public/employee/",
      "TableOwner": "",
      "TableColumns": [
        {
          "ColumnName": "Id",
          "ColumnType": "INT8",
          "ColumnNullable": "false",
          "ColumnIsPk": "true"
        },
        {
          "ColumnName": "HireDate",
          "ColumnType": "TIMESTAMP"
        },
        {
          "ColumnName": "Name",
          "ColumnType": "STRING",
          "ColumnLength": "20"
        }
      ],
      "TableColumnsTotal": "3"
    }
  ]
}

当我运行迁移任务时，我收到以下溢出错误，因为SQL Server不允许将S3中的值2018-04-11 08:02:16.788027插入到SQL Server DATETIME列中。

我的问题是，有没有办法告诉AWS DMS在SQL Server中将TIMESTAMP S3数据创建为DATETIME2列？ 注意：每次迁移运行时，都会删除并重新创建表。我可以通过在HireDate为DATETIME2的SQL-Server中自己手动创建表来解决此问题，然后设置DMS迁移＆＃39;目标表准备模式＆＃39;到TRUNCATE而不是放弃/创建，但这对我目前的解决方案并不理想。

[TARGET_LOAD ]E: Failed to execute statement: 'INSERT INTO [public].[employee]([Id],[HireDate],[Name]) values (?,?,?)' [1022502] (ar_odbc_stmt.c:2456)
[TARGET_LOAD ]E: RetCode: SQL_ERROR SqlState: 22008 NativeError: 0 Message: [Microsoft][ODBC Driver 13 for SQL Server]Datetime field overflow. Fractional second precision exceeds the scale specified in the parameter binding. Line: 1 Column: 4 [1022502] (ar_odbc_stmt.c:2462)
[TARGET_LOAD ]E: Invalid input for column 'HireDate' of table 'public'.'employee' in line number 1.(sqlserver_endpoint_imp.c:2357)

Answer 1

解决方案是在S3模式中为"ColumnScale"列指定timestamp属性，这将确保将SQL Server目标列创建为DATETIME2(7)，即

{
  "TableCount": "1",
  "Tables": [
    {
      "TableName": "employee",
      "TablePath": "public/employee/",
      "TableOwner": "",
      "TableColumns": [
        {
          "ColumnName": "Id",
          "ColumnType": "INT8",
          "ColumnNullable": "false",
          "ColumnIsPk": "true"
        },
        {
          "ColumnName": "HireDate",
          "ColumnType": "TIMESTAMP",
          "ColumnScale": "7",
        },
        {
          "ColumnName": "Name",
          "ColumnType": "STRING",
          "ColumnLength": "20"
        }
      ],
      "TableColumnsTotal": "3"
    }
  ]
}

AWS DMS S3到SQL Server迁移 - 将DATETIME2指定为SQL Server数据类型

1 个答案: