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We usually call this silent truncation and it happens when we try to insert string data (varchar, nvarchar, char, nchar) larger than the size of the column. When we are dealing with a large amount of data with a lot of columns and errors, it becomes difficult to determine which column is causing the problem.

 

 

  • Question

  • Hello

    A truncation error is displayed when importing a flat file into an SQL table.

    I searched for this on Google and found that

    can solve this problem as well.
    ssis flat file import truncation error

    go to “Advanced Editor” —–> “Output Columns” ————–>

    Select a column, go to “TruncationRowDisposition” and select “Rd_IgnoreFailure” instead of “RD_Failcomponent”

    Are you okay if I do this? Has anyone tried it.

Reply

  • @vishudd

    When creating a flat file connection manager, click the ADVANCED tab in the connection manager editor.

    Here you can configure the properties of each column in the flat file. Choose n Column and change the data type and length according to your needs. This should fix the problem.

    You can also click the Error Output tab in the Flat File Source Editor.

    Select the desired column and set the “Ignore Error” value in the “Pruning” column.

    Also set the same value for the Set brightness for the selected column, which you can find at the bottom of the window.

    ALL THE BEST

  • Question

  • Hello

    Truncation error displays when importing flat file into SQL table.

    I searched this on Google and found that

    can also solve this problem

    go to “Advanced Editor” —–> “Output Columns” ————–>

    Select a column, go to “TruncationRowDisposition” and inSelect “Rd_IgnoreFailure” instead of “RD_Failcomponent”

    Is it okay if I do this? Has anyone tried it.

Hello

Truncation error displays when importing flat file into SQL table.

I searched this on Google and found that

can solve this problem as well.

go to “Advanced Editor” —–> “Output Columns” ————–>

Select a column, go to “TruncationRowDisposition” and select “Rd_IgnoreFailure” instead of “RD_Failcomponent”

Is it okay if I do this? Has anyone tried it.

XML Source Error Because Truncation Has Occurred And The Truncation Line Layout Is Enabled

Problem reading XML data from SSIS data. Check in advance if the output column is long enough. Try the following, change the source, go to the Error Output section and change the error handling for all columns (in the Truncate column) to Peredirect string “. Then redirect the error output (red arrow leaves the source) to a temporary table and parse the rejected rows (to isolate the problem).

Error truncating XML source in data flow task. Error: “[XML Source [1]] Error: Component XML Source (1)” failed because truncation occurred, and the layout of the truncation string To simply set the length in properties to spans a value that can restore all the text in the field. Since my widest column is 278 characters, I will set it to 300, knowing this is the maximum on my original system. The field cannot contain more data.

How to ignore truncation errors in XML source in SSIS? 1) Double click the XML source. · 2) Go to the “Error Output” tab. · 3) Select a column. · 4) Select “Ignore Errors” “Right click on the XML source from the dropdown list and select” Show Advanced Editor “. “Go to the Input and Output Properties tab. Expand the output containing the column in which truncation should be ignored.

Decisions 1:

As mentioned above, the Excel source parses the first 8 rows to determine the data type and length of each column. If your package is not working due to a truncation error on a string column, there is an easy way to add a dummy string as the first line of an Excel file with data longer than 255 characters in the column causing a truncation error. With this simple method, the Excel source changes the data type of this column to ntext and the truncation error is corrected.

Solution 2:

Another solution to fix the data truncation error is to simply increase the length of this column or change the data type to ntext. To do this, right-click the Excel source. The “Advanced Excel Source Editor” window opens. Then you need to go to the Input and Output Properties tab and expand the original Excel output. Under Excel Source Output, expand Output Columns and you can see all the columns in that Excel file. Here you can click on the specific column you want to lengthen or change the data type using the “Data Type Properties” as shown below:

Solution 3 (not Recommended):

There is another solution to this problem. However, this is not recommended. By default, Excel source uses the first 8 rows to determine the data type and column length. However, this can be controlled by a setting in the Windows registry. You can go to the Windows Registry and change the value of the TypeGuessRows property to suit your needs. To change this property: Press Windows R, type “regedit” and press OK:

The Registry Editor will open. With CTRL F, you can now search for the TypeGuessRows property in the Windows registry:

This property allows values ​​from 0 to 16. If you want the Excel source to parse the entire file to set the column data type and length, you can set it to 0. Note that this solution does not allow it is not recommended because this slows down the batch because the Excel source takes longer to parse the data type andcolumn length.

Hopefully if you follow the solutions in this blog post, you can fix the truncation error by reading the Excel source code and your package will work successfully.

 

 

How do I redirect a failed row in SSIS?

Drag the target flat file into the data stream and connect the red error path generated by the OLE DB destination to the target flat file. When the Configure Error Output window appears, change the Error Handling dropdown list to Network Redirection and click OK to save your changes.

What is flat file in SSIS?

A flat file source in SSIS is used to extract or read data from text files. The flat file source uses the Flat File Connection Manager to connect to text files.