I am getting a data conversion error when I try to load data from one SQL table to another SQL table, using SSIS.
The source table has a column with data type nvarchar(max). The destination table has the same data type. I keep getting conversion errors when I use the Slowly Changing Dimension component.
Error: " Input column "des" (116) has a long object data type of DT_TEXT, DT_NTEXT or DT_IMAGE which is not supported"
Please help
Use something else besides the Slowly Changing Dimension. You can't use that component with nvarchar(max).
Related
I am trying to import "Financial data" from Excel files in to sql table. Problem I am facing is that My ssis package is incrementing decimal values. e.g -(175.20) from Excel is being loaded as "-175.20000000000005" in SQL.
I am using nVArChar (20) in destination SQL table. Images attached. What's the best data type in destination table. I have done a lot of reading and people seem to suggest decimal data but Package throws error for Decimal data type.Need help please.
Ended up changing the Data type to "Currency" in my SQL destination. Then added a data conversion task to change "DT_R8" data type from excel source to "currency[DT_CY]. This resolved the issue. could have used decimal or Numeric (16,2)data type in my destination as well but then i just went ahead with currency and it worked.
You could use a Derived Column Transformation in your Data Flow Task, with an expression like ROUND([GM],2) (you might need to replace GM with whatever your actual column name is).
You can then go to the Advanced Editor of the Derived Column Transformation and set the data type to decimal with a Scale of 2 on the 'Input and Output Properties' tab (look under 'Derived Column Output').
You'll then be able to use a decimal data type in your SQL Server table.
An error occurred while setting up a binding for the "COMMENTS" column. The binding status was "DT_TEXT". The data flow column type is "DBBINDSTATUS_UNSUPPORTEDCONVERSION". The conversion from the OLE DB type of "DBTYPE_IUNKNOWN" to the destination column type of "DBTYPE_VARCHAR" might not be supported by this provider.
I have the above error when loading in a txt file. The COMMENTS field is VARCHAR(4000) the file is column pipe delimited with a text qualifier of "".
I'm stumped as cannot seem to find anything wrong with the data in the file itself, could this be a character somewhere that's not recognised??
I had the same issue. It went away after I changed the field size from VARCHAR(4000) to VARCHAR(max). Of course, you have to use the data conversion tool to change data type to text-stream(DT_TEXT).
Changing the target column in the database via SSMS to nvarchar(max) then re-running the data flow worked for me.
I am trying to import data from database access file into SQL server. To do that, I have created SSIS package through SQL Server Import/Export wizard. All tables have passed validation when I execute package through execute package utility with "validate without execution" option checked. However, during the execution I received the following chunk of errors (using a picture, since blockquote uses a lot of space):
Upon the investigation, I found exactly the table and the column, which was causing the problem. However, this is problem I have been trying to solve for a couple days now, and I'm running dry on possible options.
Structure of the troubled table column
As noted from the error list, the trouble occurs in RHF Repairs table on the Date Returned column. In Access, the column in question is Date/Time type. Inside the actual table, all inputs are in a form of 'mmddyy', which when clicked upon, turn into 'mm/dd/yyyy' format:
In SSIS package, it created OLEDB Source/Destination relationship like following:
Inside this relationship, in both output columns and external columns data type is DT_DATE (I still think it is a key cause of my problems). What bugs me the most is that the adjacent to Date Returned column is exactly the same as what I described above, and none of the errors applied to it or any other columns of the same type, Date Returned is literally the only black sheep in the flock.
What have I tried
I have tried every option from the following thread, the error remains the same.
I tried Data conversion option, trying to convert this column into datestamp or even unicode string. It didn't work.
I tried to specify data type with the advanced source editor to both datestamp/unicode string. I tried specifying it only in output columns, tried in both external and output columns, same result.
Plowing through the data in access table also did not give me anything. All of them use the same 6-char formatting through it all.
At this point, I literally exhausted all options I could think of. Can you please point me in the right direction on what else I could possibly try to resolve it, since it drives me nuts for last two days.
PS: On my end, I will plow through each row individually, while not trying to get discouraged by the fact that there are 4000+ row entries...
UPDATE:
I resolved this matter by plowing through data. There were 3 faulty entries among 4000+ rows... Since the issue was resolved in a manner unlikely to help others, please close that question.
It sounds to me like you have one or more bad dates in the column. With 4,000 rows, I actually would visually scan and look for something very short or very long.
You could change your source to selecting top 1 instead of all 4,000. Do those insert? If so, that would lend weight to the bad date scenario. If 1 row does not flow through, it is another issue.
(I will just share my experience, how I overcame this problem, in case it helps someone)
My scenario:
One of the column Identifier in the ole db data source has changed from int to bigint. I was getting the error message - Conversion failed because the data value overflowed the specified type.
Basically, it was telling me the source data size was greater than the destination data size.
What I have tried:
In the ole db data source and destination both places, I clicked "show advanced editior", checkd the data type Identifier was bigint. But still, I was getting the error message
The solution worked for me:
In the ole db data source--> show advanced edition option--> Input and Output Properties--> OLE DB Source Output--> there are two options - External columns & Output columns.
In my case, though the Identifier column in the External columns was showing the data type bigint, but in the Output columns was showing the data type int. So, I changed the data type to bigint and it has solved my problem.
Now and then I get this problem, specially when I have a big table with lots of data.
I hope it helps.
We had this error when someone had entered the year as 216 instead of 2016. The data source was reading the data ok but it was failing on the OLEDB destination task.
We use a script task in the data flow for validation. By adding a check that dates aren't too far in the past we are able to trap this kind of error and at least generate a meaningful error message to find and correct the problem quickly.
I'm hoping someone that has come across this can help me out because I'm pulling my hair out here.
I have an excel sheet that has a bunch of columns, one of them being a date column. When I use an Excel Source and link it to a Slowly Changing Dimension transformation everything goes great until I click the last button to configure the component and then I get the following message. The date column is coming from excel as DB_DATE type and the database column is date. I've tried doing a data conversion and a derived column to coerce the date but still no love. Any ideas?
Here is the error:
Error at Data Flow Task [SSIS.Pipeline]: The component view is
unavailable. Make sure the component view has been created.
Error at Data Flow Task [Slowly Changing Dimension [26]]: The input column "input column "TargetDate" (94)" cannot be mapped to
external column "external column "TargetDate" (87)" because they have
different data types. The Slowly Changing Dimension transform does not
allow mapping between column of different types except for DT_STR and
DT_WSTR.
I have also successfully used a standard OLEDB destination with this same excel sheet with a date field and it imported the whole sheet fine so I can't see why it's having an issue using the Slowly Changing Dimension.
Based on the advice of some SSIS rock stars I've met, you're probably better avoiding the SCD transformation and rolling your own. That you're getting a standard OLEDB destination to work leads leads me to this conclusion. The advice I received against the SCD transforamtion is based on performance. As I recall OLEDB Commands are generated, and that gets you into row-by-row slowness.
Halfway through a SSIS project certain table fields changed from char(30) to nvarchar(30)
However, when running the SSIS packages, an error stating cannot convert from unicode to non-unicode appears.
I am trying to transfer data directly from a database source to its destination.
Both connections use the same database schema, so there should be no conversion.
When checking the external column data type it shows D_STR, which is not the case anymore.
I tried deleting both source and destination in hope that it would clean any sort of cached data, but it did not work.
Any ideas?
Sounds to me like the metadata in your data flow task is cached and needs to be refreshed to reflect the new type.
Open the source, go to columns, and uncheck the column, then check the column. Click ok. The metadata should refresh now.
nvarchar and nchar are unicode. Conversely, varchar and char are non-unicode.
http://msdn.microsoft.com/en-us/library/ms187752.aspx
As a result if you are moving data from one data type to another you will have to perform some additional transformation (CAST or CONVERT). The other option is to look at your adapters such that char will use SSIS DataType of DT-STR and nvarchar will use SSIS DataType DT-WSTR
http://msdn.microsoft.com/en-us/library/ms141036.aspx
Without knowing how your packages work I cannot be much more specific but hopefully this will get you going.