Question

我对Postgrace完全陌生。作为我工作的一部分，我得到了下面的执行查询：

>>> d = {'chs_per_cath': [[[10, 11, 12, 13], [13000, 13100, 13200, 13300]],
  [[16, 17, 18, 19, 20, 21, 22, 23, 24, 25],
   [13400, 13500, 13600, 13700, 13800, 13900, 14000, 14100, 14200, 14300]],
  [[32, 33, 34, 35, 36, 37, 38, 39, 40, 41],
   [13400, 13500, 13600, 13700, 13800, 13900, 14000, 14100, 14200, 14300]]]}

>>> print(yaml.dump(d, default_flow_style=True))
{chs_per_cath: [[[10, 11, 12, 13], [13000, 13100, 13200, 13300]], [[16, 17, 18, 19,
        20, 21, 22, 23, 24, 25], [13400, 13500, 13600, 13700, 13800, 13900, 14000,
        14100, 14200, 14300]], [[32, 33, 34, 35, 36, 37, 38, 39, 40, 41], [13400,
        13500, 13600, 13700, 13800, 13900, 14000, 14100, 14200, 14300]]]}

运行此命令时，出现以下错误：

SQL错误[42883]：错误：运算符不存在：bigint = @ bigint 提示：没有运算符匹配给定的名称和参数类型。您可能需要添加显式类型转换。位置：166

我尝试如下声明变量：

    select external_source as DownloadUrl, external_status as 
    DownloadStatus, external_source as DownloadId from  downloadrefresh
  where subscriberid=@SubscriberId and
   profileid=@ProfileId and        channeltype=@ChannelType and
   messagetypeid=@MessageType and LENGTH(external_source) > 0;

然后，我收到以下错误消息：

    do $$
    declare
    SubscriberId  int;
    profileid   int;
    channeltype  int;
   messagetype  int;

   begin
    select external_source as DownloadUrl,
   external_status as DownloadStatus,
   external_source as DownloadId
    from  downloadrefresh
    where subscriberid=@SubscriberId and
   profileid=@ProfileId and        channeltype=@ChannelType and
   messagetypeid=@MessageType and LENGTH(external_source) > 0;


  end $$

任何人都可以帮我这个忙。我如何在sql之上运行

在Postgrace中运行查询时出错

0 个答案: