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SSIS将NVARCHAR转换为Int

[英]SSIS Convert NVARCHAR to Int

原文 2015-09-10 20:55:36 3 1 sql/ sql-server/ ssis

I need a solution to convert list of nvarchar to int (or numerical). 我需要一种将nvarchar列表转换为int（或数字）的解决方案。

Input number is range of 0-10 or null and its a null value not null string. 输入数字的范围是0-10或null，并且其null值而不是null字符串。

On SSIS I have an OLE DB Source with this information which is then passed into a data conversion where this field is alterd to numeric (DT_NUMERIC), the destination table is set to receive an int however I always get the below error 在SSIS上，我有一个带有此信息的OLE DB源，然后将其传递到数据转换中，该字段将字段更改为数字（DT_NUMERIC），目标表设置为接收int，但是我总是收到以下错误

"Data conversion failed while converting column Range to column numRange.The value could not be converted because of a potential loss of data" “将列范围转换为列numRange时数据转换失败。由于潜在的数据丢失，无法转换该值”

I can ignore this and everything seems to work fine but I would rather either handle the error or figure out what's causing it, with this input data what is the issue? 我可以忽略这一点，并且一切似乎都可以正常工作，但是我宁愿处理错误还是弄清楚是什么原因，使用此输入数据是什么问题？

1 个解决方案

In a derived column component create a new column with expression as: (DT_I4)[Nvarchar column name]. 在派生的列组件中，创建一个新列，其表达式为：（DT_I4）[Nvarchar列名]。

Also, configure the error op to redirect row so that any failed conversions can be captured and fixed. 另外，将错误操作配置为重定向行，以便可以捕获和修复所有失败的转换。

Refer to link : https://social.msdn.microsoft.com/Forums/en-US/705fa9a1-b7bc-402b-90cd-9ab67a278cff/converting-nvarchar-to-an-int-int-ssis?forum=sqlintegrationservices 请参阅链接： https : //social.msdn.microsoft.com/Forums/en-US/705fa9a1-b7bc-402b-90cd-9ab67a278cff/converting-nvarchar-to-an-int-int-ssis?forum=sqlintegrationservices

https://social.technet.microsoft.com/Forums/sqlserver/en-US/baaecc68-54a2-496c-81a4-4cb4e897a9dc/convert-nvarchar-to-integer-in-sql-server?forum=sqldataaccess https://social.technet.microsoft.com/Forums/sqlserver/en-US/baaecc68-54a2-496c-81a4-4cb4e897a9dc/convert-nvarchar-to-integer-in-sql-server?forum=sqldataaccess

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