Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

To celebrate FabCon Vienna, we are offering 50% off select exams. Ends October 3rd. Request your discount now.

Reply
HarderT
Helper II
Helper II

Pipeline change Date to Datetime

Hi together,

 

this is an example of my Importjob. I create a Table with a lot of tablenames from our source database and the ForEach-Task copy the table into our Lakehouse. 

HarderT_0-1715091166922.png

 

In the process,  HarderT_1-1715091254528.png  become  HarderT_2-1715091287268.png.

 

Does anyone have the same problem and know a solution?

 

1 ACCEPTED SOLUTION
HarderT
Helper II
Helper II

I have seen that there is already a known issue for this. However, I use Pipeline and not Dataflow Gen2.

 

Known issue - Type mismatch when writing decimals and dates to lakehouse using a dataflow - Microsof...

View solution in original post

5 REPLIES 5
HarderT
Helper II
Helper II

I have seen that there is already a known issue for this. However, I use Pipeline and not Dataflow Gen2.

 

Known issue - Type mismatch when writing decimals and dates to lakehouse using a dataflow - Microsof...

Anonymous
Not applicable

Thanks for the details @HarderT 
I will keep you posted regarding the updates of this known issue. Appreciate your patience.

Anonymous
Not applicable

Hi @HarderT 

Thanks for using Fabric Community.

Are you using On prem database here?

Have you set/checked the data type in the Mapping tab in Copy?

Anonymous
Not applicable

Hi @HarderT 
Under mapping you have Advanced settings:

vnikhilanmsft_0-1715104670476.png


If in the source, the column is determined to be a String then running the type checker doesn't understand the source's format.
If you need to force a String -> Date, precreate the table.

Hope this helps. Please let me know if you have any further questions.

Hi @Anonymous,

the source is an OnPrem-Database. The Columntyp there is DATE and after import into Lakehouse its DATETIME.

 

I dont use the Mapping-Tab, because I use a ForEach-Loop to import many tables.

 

I already tried to change the typ with Type conversion settings, but somehow it doenst work. I need the column not as string, but as same as in the source.

 

I try to precreate the table and see what happens.

Helpful resources

Announcements
September Fabric Update Carousel

Fabric Monthly Update - September 2025

Check out the September 2025 Fabric update to learn about new features.

August 2025 community update carousel

Fabric Community Update - August 2025

Find out what's new and trending in the Fabric community.

Top Kudoed Authors