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Changing type from Text to Varchar(max)
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À
15/02/2016 09:32:24
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Autre
Divers
Thread ID:
01631464
Message ID:
01631467
Vues:
54
>>I have tested on my own test database that when I change a column type from Text to Varchar(max) the content of the column is not lost. But since I am going to do this change on a bunch of customers' databases, is there any chance that the content would be lost?
>>I am changing the type in the SSMS.
>>Thank you.
>
>
>Hi, I would definitely recommend creating a test version of the tables....then change the data type and verify the results.
>
>I'm not specifically aware of any issues - but I would definitely test the results. Also, if there were any client applications that read the data, I'd make sure they still work (just in the odd event a client application was explicitly looking for a text data type)

I did test on my own tables and so far no problem. As far as the application, the databases are used by my (VFP9) application and it works too. Actually this is how I tested the results after the change, via the VFP 9 application. My app accesses and updates the SQL server data via Cursor Adapter which is has the same type (memo) for either Text or Varchar(max).
Thank you!
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