Derived table ‘%.*ls’ is not updatable because a column of the derived table is derived or constant.

Error Message:
Msg 4421, Level 16, State 1, Line 1
Derived table ‘%.*ls’ is not updatable because a column of the derived table is derived or constant.

Severity level:
16.

Description:
This error message appears when you try to update a column of a derived table that is either derived or constant.

Consequences:
The T-SQL statement can be parsed, but causes the error at runtime.

Resolution:
Errors of the Severity Level 16 are generated by the user and can be fixed by the SQL Server user. The statement cannot be executed this way. You cannot update a derived or constant column of a derived table.

Versions:
All versions of SQL Server.

Example(s):
UPDATE t
    SET
    c1 = 2
FROM
    (SELECT
        1 AS c1) t

Remarks:
In the above example we try to update the column c1 of the derived table t. Because c1 is a constant, the error is raised.




Related Articles :

  • No Related Articles Found

No comments yet... Be the first to leave a reply!

Software Reviews | Book Reviews | FAQs | Tips | Articles | Performance Tuning | Audit | BI | Clustering | Developer | Reporting | DBA | ASP.NET Ado | Views tips | | Developer FAQs | Replication Tips | OS Tips | Misc Tips | Index Tuning Tips | Hints Tips | High Availability Tips | Hardware Tips | ETL Tips | Components Tips | Configuration Tips | App Dev Tips | OLAP Tips | Admin Tips | Software Reviews | Error | Clustering FAQs | Performance Tuning FAQs | DBA FAQs |