Question

我想将此查询的结果插入到我在下面创建的表中。

IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[Entity]') AND type in (N'U'))
DROP TABLE [Entity]
Go
Create Table Entity

([EntCode] [nvarchar](8) NOT NULL,
    [Name] [nvarchar](80) NOT NULL,
    [CompanyRegistration] [nvarchar](80) NULL,
    [Active] [int] NOT NULL,
    [AccessLevel] [int] NOT NULL ,
    [SiteURN] [nvarchar](128) NOT NULL,
    [CompanyURN] [nvarchar](128) NOT NULL,
    [SiteName] [nvarchar](30) NOT NULL,
    [SiteDesc] [nvarchar](60) NULL,
    [SiteURL] [nvarchar](512) NOT NULL)

我想使用此插件从此查询中插入数据，但是我收到此错误＆＃34;插入错误：列名或提供的值数与表定义不匹配＆＃34;

因为我有一个额外的列[CompanyRegistration] nvarchar NULL，我在创建表时对其进行了decalred NULL。如何在表格中标记为NULL的[CompanyRegistration]列中插入这些查询结果？

insert into ResourceTaskFact.dbo.Entity

Select
    e.EntCode,
    e.Name,
    e.Active ,
    e.AccessLevel, 

    ss.SiteURN,
    ss.CompanyURN, 
    ss.SiteName ,
    ss.SiteDesc ,
    ss.SiteURL 
from SMECSite ss, SMECLegalEnt e
where ss.localsiteflag = 1
and e.active = 1

我该如何解决这个问题？我需要你的帮助伙计。提前谢谢！

博

Answer 1

insert into ResourceTaskFact.dbo.Entity
  (e.EntCode,
   e.Name,
   e.Active,
   e.AccessLevel,
   ss.SiteURN,
   ss.CompanyURN,
   ss.SiteName,
   ss.SiteDesc,
   ss.SiteURL)

  Select e.EntCode,
         e.Name,
         e.Active,
         e.AccessLevel,
         ss.SiteURN,
         ss.CompanyURN,
         ss.SiteName,
         ss.SiteDesc,
         ss.SiteURL
    from SMECSite ss, SMECLegalEnt e
   where ss.localsiteflag = 1
     and e.active = 1

Answer 2

您需要在CompanyRegistration声明中明确设置NULL至SELECT：

insert into ResourceTaskFact.dbo.Entity

Select
    e.EntCode,
    e.Name,
    NULL AS CompanyRegistration, -- Put column name in to demonstrate why you're selecting NULL here
    e.Active ,
    e.AccessLevel, 
    ss.SiteURN,
    ss.CompanyURN, 
    ss.SiteName ,
    ss.SiteDesc ,
    ss.SiteURL 
from SMECSite ss, SMECLegalEnt e
where ss.localsiteflag = 1
and e.active = 1

Answer 3

将要插入的列命名为

是一个好习惯

insert into ResourceTaskFact.dbo.Entity 
(
    [EntCode], 
    [Name], 
    [Active],
    [AccessLevel],
    [SiteURN],
    [CompanyURN]L,
    [SiteName],
    [SiteDesc],
    [SiteURL]
)    
Select
    e.EntCode,
    e.Name,
    e.Active ,
    e.AccessLevel,     
    ss.SiteURN,
    ss.CompanyURN, 
    ss.SiteName ,
    ss.SiteDesc ,
    ss.SiteURL 
from SMECSite ss, SMECLegalEnt e
where ss.localsiteflag = 1
and e.active = 1

这样您就不必填充没有值的列。

当空表中的列为NULL时，如何插入表中

3 个答案: