将本地 MS Dynamics CRM 2013 升级到本地 MS Dynamics CRM 2015

Question

I have a problem when do upgrade from MS Dynamics CRM 2013 to 2015.

When Import Organization Wizard does System Checks, it gets error:

Violation of PRIMARY KEY constraint 'PK__#ActualC__59D49277A86CC312'. 
Cannot insert duplicate key in object 'dbo.#ActualColumns'. 
The duplicate key value is (SplitString, Data).

Other info:

• CRM 2013 SP1 (6.1.3.119);

• SQL 2012 Enterprise SP2

Answer 1

This might happen if you made unsupported modification to your CRM database, such as adding custom tables. Delete them first and try your upgrade again.

Answer 2

Same error while upgrading Microsoft Dynamics CRM

I recently upgrade from Microsoft Dynamics 365 (CRM 2016 On-Premise) to Dynamics 365 Server, v9.0

I had the same error-message with a different "duplicate key value". The root-cause of the problem was that I had "duplicate values" in the CRM-Database-Objects.
The following Query lists such duplicates:

SELECT TABLE_NAME, COLUMN_NAME, COUNT(*) Count 
FROM INFORMATION_SCHEMA.COLUMNS GROUP BY TABLE_NAME, COLUMN_NAME HAVING COUNT(*) > 1

Of course the duplicates where in my own database-objects (views) that I had created in my own schemas.
Renaming my own objects/views or the columns in the views to make sure the above query doesn't list any results solved my problem.
After the changes in my own objects I was able to do the Upgrade