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SQLServer Writer

SQLServer Writer 插件实现了写入数据到 SQL Server 库表的功能。

配置样例

这里使用一份从内存产生到 SQL Server 导入的数据。

{
  "job": {
    "setting": {
      "speed": {
        "channel": 1,
        "bytes": -1
      }
    },
    "content": {
      "reader": {},
      "writer": {
        "name": "sqlserverwriter",
        "parameter": {
          "username": "root",
          "password": "root",
          "column": [
            "db_id",
            "db_type",
            "db_ip",
            "db_port",
            "db_role",
            "db_name",
            "db_username",
            "db_password",
            "db_modify_time",
            "db_modify_user",
            "db_description",
            "db_tddl_info"
          ],
          "connection": {
            "table": [
              "db_info_for_writer"
            ],
            "jdbcUrl": "jdbc:sqlserver://[HOST_NAME]:PORT;DatabaseName=[DATABASE_NAME]"
          },
          "preSql": [
            "delete from @table where db_id = -1;"
          ],
          "postSql": [
            "update @table set db_modify_time = now() where db_id = 1;"
          ]
        }
      }
    }
  }
}

参数说明

该插件基于 RDBMS Writer 实现,因此可以参考 RDBMS Writer 的所有配置项。

writeMode

默认情况下, 采取 insert into 语法写入 SQL Server 表,如果你希望采取主键存在时更新,不存在则写入的方式,也就是 SQL Server 的 MERGE INTO 语法, 可以使用 update 模式。 假定表的主键为 id ,则 writeMode 配置方法如下:

{
  "writeMode": "update(id)"
}

如果是联合唯一索引,则配置方法如下:

{
  "writeMode": "update(col1, col2)"
}