Question

我试图通过T-SQL脚本更改特定表的架构。我想创建一个临时表，将相关数据转储到该表中，删除/重新创建原始表，然后传输数据。

只要我没有运行最终的INSERT语句，脚本似乎工作正常。

INSERT INTO AgentRelationshipCodes(RelationshipId, EffectiveDate, LastChangeDate, LastChangeId, AgtTableId)
SELECT RelationshipId, EffectiveDate, LastChangeDate, LastChangeId, ID 
FROM tmpAgentRelationshipCodes

此时我收到错误消息

Msg 207, Level 16, State 1, Line 26
Invalid column name 'AgtTableId'.

不知道为什么，因为我在第一个CREATE TABLE语句中清楚地创建了这个字段。另外，如果我运行脚本的其余部分（基本上创建两个表，将数据转储到临时表中）和INSERT语句分别运行它们。

CREATE TABLE tmpAgentRelationshipCodes
(
ID int,
RelationshipId char(3),
EffectiveDate datetime,
LastChangeDate datetime,
LastChangeId char(6)
);

INSERT INTO tmpAgentRelationshipCodes(ID, RelationshipId, EffectiveDate, LastChangeDate, LastChangeId)
SELECT ID, RelationshipId, EffectiveDate, LastChangeDate, LastChangeId
FROM AgentRelationshipCodes

DROP TABLE AgentRelationshipCodes

CREATE TABLE AgentRelationshipCodes
(
Id UNIQUEIDENTIFIER DEFAULT NEWID(),
RelationshipId char(3) NULL,
EffectiveDate datetime NULL,
LastChangeDate datetime NOT NULL,
LastChangeId char(6) NOT NULL,
AgtTableId int FOREIGN KEY REFERENCES AgentTransmission(ID)
);

INSERT INTO AgentRelationshipCodes(RelationshipId, EffectiveDate, LastChangeDate, LastChangeId, AgtTableId)
SELECT RelationshipId, EffectiveDate, LastChangeDate, LastChangeId, ID 
FROM tmpAgentRelationshipCodes

Answer 1

按如下方式编辑脚本以包含[dbo]，并且还需要GO语句来分隔命令。

CREATE TABLE [dbo].[tmpAgentRelationshipCodes]
(
ID int,
RelationshipId char(3),
EffectiveDate datetime,
LastChangeDate datetime,
LastChangeId char(6)
);
GO

INSERT INTO [dbo].[tmpAgentRelationshipCodes](ID, RelationshipId, EffectiveDate, LastChangeDate, LastChangeId)
SELECT ID, RelationshipId, EffectiveDate, LastChangeDate, LastChangeId
FROM [dbo].[AgentRelationshipCodes]
GO

DROP TABLE [dbo].[AgentRelationshipCodes]

CREATE TABLE [dbo].[AgentRelationshipCodes]
(
Id int PRIMARY KEY,
RelationshipId char(3) NULL,
EffectiveDate datetime NULL,
LastChangeDate datetime NOT NULL,
LastChangeId char(6) NOT NULL,
AgtTableId int FOREIGN KEY REFERENCES AgentTransmission(ID)
ON DELETE CASCADE
)
GO

INSERT INTO [dbo].[AgentRelationshipCodes](RelationshipId, EffectiveDate, LastChangeDate, LastChangeId, AgtTableId)
SELECT RelationshipId, EffectiveDate, LastChangeDate, LastChangeId, ID 
FROM [dbo].[tmpAgentRelationshipCodes]

列名AgtTableId无效

1 个答案: