列与逆透视列表中其他列的类型冲突 [英] Column conflicts with the type of other columns in the unpivot list

问题描述

我将 sys.[views] 转换为键值对，以便与另一台服务器上的值进行比较以进行一致性测试.我遇到了一个返回错误的问题.

Im pivoting sys.[views] into key value pairs to compare with values on another server for consistency testing. Im running into an issue which returns the error.

消息 8167，级别 16，状态 1，第 51 行

Msg 8167, Level 16, State 1, Line 51

列的类型type"与 UNPIVOT 列表中指定的其他列的类型冲突.

The type of column "type" conflicts with the type of other columns specified in the UNPIVOT list.

查询:

SELECT
sourceUnpivoted.idServer,
sourceUnpivoted.sourceServerName,
sourceUnpivoted.name,
sourceUnpivoted.columnName,
sourceUnpivoted.columnValue
FROM (
SELECT 
CAST('1' AS VARCHAR(255)) AS idServer,
CAST('thisOne' AS VARCHAR(255)) AS sourceServerName,
CAST('theDatabase' AS VARCHAR(255)) AS sourceDatabaseName,
CAST(name AS VARCHAR(255)) AS name,
CAST(object_id AS VARCHAR(255)) AS object_id,
CAST(principal_id AS VARCHAR(255)) AS principal_id,
CAST(schema_id AS VARCHAR(255)) AS schema_id,
CAST(parent_object_id AS VARCHAR(255)) AS parent_object_id,
CAST(type AS VARCHAR(255)) AS type,
CAST(type_desc AS VARCHAR(255)) AS type_desc,
CAST(create_date AS VARCHAR(255)) AS create_date,
CAST(lock_escalation_desc AS VARCHAR(255)) AS lock_escalation_desc
...
FROM noc_test.dbo.stage_sysTables
) AS databaseTables
UNPIVOT (
columnValue FOR columnName IN (
object_id,
principal_id,
schema_id,
parent_object_id,
type,
type_desc,
create_date,
lock_escalation_desc
) 
) AS sourceUnpivoted

为什么这不喜欢[type],[type_desc],[lock_escalation_desc] ???我也试过 CONVERT(VARCHAR(255),type) AS type

Why does this not like [type],[type_desc],[lock_escalation_desc] ??? Ive also tried CONVERT(VARCHAR(255),type) AS type

推荐答案

这实际上是一个整理问题.我可以通过更改这些行来解决它:

It's actually a collation issue. I can resolve it by changing these lines:

CAST([type] collate database_default AS VARCHAR(255)) AS [type], 
CAST(type_desc collate database_default AS VARCHAR(255)) AS type_desc, 
CAST(create_date AS VARCHAR(255)) AS create_date, 
CAST(lock_escalation_desc collate database_default AS VARCHAR(255)) AS lock_escalation_desc 

具体问题是 name 被整理为 Latin1_General_CI_AS，而你提到的其他 3 列被整理为 Latin1_General_CI_AS_KS_WS(至少，在我的机器上，我不确定在具有不同默认排序规则的服务器/数据库上会是什么样子).

The specific issue is that name is collated as Latin1_General_CI_AS, whereas the other 3 columns you mentioned are collated as Latin1_General_CI_AS_KS_WS (At least, on my machine, I'm not sure what it would be like on a server/database with different default collation).

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