One thing thoough, I'm not so sure about implicit conversions. Former automatically converts non-unicode to unicode string, and latter results in an error and that is how I came here :.
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Question feed. Stack Overflow works best with JavaScript enabled. Data conversion Transformation is a component used within data flow tasks to convert SSIS data types of input columns and generate new output columns:.
The Data Conversion Transformation editor is not complicated; it is composed of two main parts:. For more information about handling SSIS data types and Data Conversion Transformation, you can refer to the following official documentation:. Another method to convert data types is changing the data types from the source component.
To open advanced editor, right-click on the source component and click on Show Advanced Editor option:. Note that when using flat file connections, you can change the SSIS data types from the flat file connection manager rather than using source advanced editor. As shown in the image above, in the Inputs and Outputs tree view, under the Source Output node, you will see two nodes:.
When you expand any of these nodes, you can select any column and change its SSIS data type as shown in the image below:. When you change a column data type using a data conversion transformation, or a derived column then you are performing a CAST operation which means an explicit conversion. While when you change the SSIS data types from the advanced editor, you are forcing the SSIS components to read the column as a different data type which means you are performing an implicit conversion.
There are many factors that you have to check before deciding which approach you have to use:. Based on what we mentioned above, you have to choose which type of conversion you should go with based on the SSIS data types you are working with and what is the logic you have to implement within your data flow.
Author Recent Posts. Hadi Fadlallah. Hadi is an SQL Server professional with more than 10 years of experience. Add a comment. Active Oldest Votes. Improve this answer. Kin Shah Kin Shah But the options I suggested will also work. Thanks for the responce, its apprecitaed. I couldnt see how to following your instructions and needed a quick result.
Im fairly new to SSIS. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.
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