SQL Server Error Msg 35344 – MERGE clause of ALTER PARTITION statement failed because two nonempty partitions containing a columnstore index cannot be merged. Consider an ALTER TABLE SWITCH operation from one of the nonempty partitions on the source table to a temporary staging table and then re-attempt the ALTER PARTITION MERGE operation. Once completed, use ALTER TABLE SWITCH to move the staging table partition back to the original source table.

In this blog post, let’s learn about the error message “35344 – MERGE clause of ALTER PARTITION statement failed because two nonempty partitions containing a columnstore index cannot be merged. Consider an ALTER TABLE SWITCH operation from one of the nonempty partitions on the source table to a temporary staging table and then re-attempt the ALTER PARTITION MERGE operation. Once completed, use ALTER TABLE SWITCH to move the staging table partition back to the original source table.” in Microsoft SQL Server, the reason why it appears and the solution to fix it.

SQL Server Error Message

35344 – MERGE clause of ALTER PARTITION statement failed because two nonempty partitions containing a columnstore index cannot be merged. Consider an ALTER TABLE SWITCH operation from one of the nonempty partitions on the source table to a temporary staging table and then re-attempt the ALTER PARTITION MERGE operation. Once completed, use ALTER TABLE SWITCH to move the staging table partition back to the original source table.

Reason for the Error

To be update soon…

Solution

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