ssis-data-types | 易学教程

Change data types from Advanced Editor vs Data Conversion Transformation

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问题 I am using SSIS to create some packages. I have gotten confused around the Data Conversion Transformation component and changing columns data types from Advanced editor If I can go into the advanced editor and change the data type of my output, why would I need to input the Data Conversion Transformation? Is this just down to preference or is there a difference between using both approaches? 回答1: Before showing the difference between both approaches, i will try to give an overview of the data

Oracle query as source in SSIS defines wrong data types

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问题 I have a somewhat complex query that I want to use as a source in an SSIS package. I create my OLE DB Source, specify the access mode as SQL, and paste my query in the command textbox. When I click Preview, sample data comes back and everything looks good. However, when I try to run the package I get back "external columns are out of sync with data source columns" and a mess of "external column 'xxx' needs to be removed from the external columns" error messages. Note that in design mode there

Oracle query as source in SSIS defines wrong data types

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Stubborn column data type in SSIS flat flat file connection manager won't change. :(

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问题 I have inherited an existing SSIS package that imports flat file data into my SQL Server 2005 database. I need to change the data type of the "Gross Sales" column from "numeric" to "currency". When I change the data type and export the package the data type remains numeric. I have also tried creating a new flat file connection to use in the same package, but for some strange reason it still remains numeric instead of "cy" currency. I guess there is something "stuck" in some other area that is

Flat file destination columns data types validation

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问题 A source database field of type INT is read through an OLE DB Source. It is eventually written to a Flat File Destination. The destination Flat File Connection Manager > Advanced page reports it as a four-byte signed integer [DT_I4] . This data type made me think it indicated binary. Clearly, it does not. I was surprised that it was not the more generic numeric [DT_NUMERIC] . I changed this type setting to single-byte signed integer [DT_I1] . I expected this to fail, but it did not. The

Change data types from Advanced Editor vs Data Conversion Transformation

阅读更多关于 Change data types from Advanced Editor vs Data Conversion Transformation

I am using SSIS to create some packages. I have gotten confused around the Data Conversion Transformation component and changing columns data types from Advanced editor If I can go into the advanced editor and change the data type of my output, why would I need to input the Data Conversion Transformation? Is this just down to preference or is there a difference between using both approaches? Before showing the difference between both approaches, i will try to give an overview of the data conversion types. Implicit vs Explicit conversion There are 2 different type of data type conversion:

Flat file destination columns data types validation

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A source database field of type INT is read through an OLE DB Source. It is eventually written to a Flat File Destination. The destination Flat File Connection Manager > Advanced page reports it as a four-byte signed integer [DT_I4] . This data type made me think it indicated binary. Clearly, it does not. I was surprised that it was not the more generic numeric [DT_NUMERIC] . I changed this type setting to single-byte signed integer [DT_I1] . I expected this to fail, but it did not. The process produced the same result, even though the value of the field was always > 127. Why did this not fail