sql - 查询otrs数据库

Question

我在从 OTRS 对 postgresql 数据库创建查询时遇到问题。我需要获取包含存储在 CMDB 中的一些数据的 Assets 列表，但我在存储数据的方式上遇到了问题。

就目前而言，此查询工作正常，但一旦我添加另一个左连接以获取更多数据，它就会一直运行而不会返回任何结果。

据我所知，问题是所有信息都包含在 xml_storage 表中，没有任何关系，因此我需要反复查询该表以获取数据。还有一种混合数据类型，在某些情况下整数存储为可变字符，这使我无法使用该值从通用目录中获取其他信息。

几天来我一直在用头撞砖墙，所以我真的很感激任何帮助

SELECT 
      asset_value,
      manufacturer_value,
      model_value,
      serial_value,
      fqdn_value,
      array_agg(service),
      purchasedate_value,
      status_value,
      configitem.configitem_number,
      configitem_version.name,
      general_catalog.name

    FROM 
      public.configitem_version,
      public.general_catalog,
      public.configitem 

    left join
      (SELECT
      xml_storage.xml_content_value AS asset_value,
      xml_storage.xml_key
      FROM
      public.xml_storage 
      WHERE
      xml_content_key = '[1]{''Version''}[1]{''Asset Number''}[1]{''Content''}')   as select_asset on last_version_id::int = select_asset.xml_key::int

    left join
      (SELECT
      xml_storage.xml_content_value AS manufacturer_value,
      xml_storage.xml_key
      FROM
      public.xml_storage 
      WHERE
      xml_content_key = '[1]{''Version''}[1]{''Manufacturer''}[1]{''Content''}' ) as select_manufacturer on last_version_id::int = select_manufacturer.xml_key::int

    left join
      (SELECT
      xml_storage.xml_content_value AS model_value,
      xml_storage.xml_key
      FROM
      public.xml_storage 
      WHERE
      xml_content_key = '[1]{''Version''}[1]{''Model''}[1]{''Content''}' ) as select_model on last_version_id::int = select_model.xml_key::int

    left join
      (SELECT
      xml_storage.xml_content_value AS serial_value,
      xml_storage.xml_key
      FROM
      public.xml_storage 
      WHERE
      xml_content_key = '[1]{''Version''}[1]{''SerialNumber''}[1]{''Content''}' ) as select_serial on last_version_id::int = select_serial.xml_key::int

    left join
      (SELECT
      xml_storage.xml_content_value AS fqdn_value,
      xml_storage.xml_key
      FROM
      public.xml_storage 
      WHERE
      xml_content_key = '[1]{''Version''}[1]{''FQDN''}[1]{''Content''}' ) as select_fqdn on last_version_id::int = select_fqdn.xml_key::int

    left join
      (SELECT 
      link_relation.source_key AS "configitem_id", 
      service.name AS "service"
      FROM 
      public.link_relation, 
      public.service
      WHERE 
      link_relation.target_key::int = service.id AND
      link_relation.target_object_id::int = 2 AND link_relation.source_object_id::int = 3
      UNION
      SELECT 
      link_relation.target_key AS "configitem_id", 
      service.name AS "service"
      FROM 
      public.link_relation, 
      public.service
      WHERE 
      link_relation.source_key::int = service.id AND
      link_relation.target_object_id::int = 3 AND link_relation.source_object_id::int = 2) as select_service on configitem.id = configitem_id::int

    left join
      (SELECT
      xml_storage.xml_content_value AS purchasedate_value,
      xml_storage.xml_key
      FROM
      public.xml_storage 
      WHERE
      xml_content_key = '[1]{''Version''}[1]{''PurchaseDate''}[1]{''Content''}' ) as select_purchasedate on last_version_id::int = select_purchasedate.xml_key::int

    left join
      (SELECT
      general_catalog.name AS status_value,
      general_catalog.id
      FROM
      public.general_catalog) as select_status on configitem.cur_depl_state_id::int = select_status.id::int

    WHERE
      configitem.last_version_id = configitem_version.id AND
      configitem.class_id = general_catalog.id AND
      (configitem.class_id = 32 OR configitem.class_id = 33)


    GROUP BY
      asset_value,
      manufacturer_value,
      model_value,
      serial_value,
      fqdn_value,
      purchasedate_value,
      status_value,
      configitem.configitem_number,
      configitem_version.name,
      general_catalog.name

    ;

Answer 1

您是否可以使用 OTRS API 而不是查询？以这种方式获取数据会更容易一些。此外，ImportExport 模块允许将数据导出到 .csv 文件；根据您的需要，这可能是一个选项。