The logical tables INSERTED and DELETED cannot be updated.

Error Message:
Msg 286, Level 16, State 1, Procedure, Line 5
The logical tables INSERTED and DELETED cannot be updated.

Severity level:
16.

Description:
This error message appears when you update the logical tables INSERTED and DELETED in a trigger.

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

Resolution:
Error of the Severity Level 16 are generated by the user and can be fixed by the SQL Server user. The statement cannot be run this way. You cannot update these two logical tables.

Versions:
All versions of SQL Server.

Example(s):
IF OBJECT_ID (‘dbo.t’) IS NOT NULL
    DROP TABLE dbo.t;
GO

CREATE TABLE dbo.t
(
    c1 int
);
GO

CREATE TRIGGER dbo.t_i ON dbo.t
FOR INSERT
AS
UPDATE inserted
    SET
    c1 = c1 + 1;
GO

Remarks:
In the above example we try to update the logical table INSERTED in the trigger dbo.t_i. This raises the error.



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