Msg 515, Level 16, State 2, Line 9
Cannot insert the value NULL into column ‘%.*ls’, table ‘%.*ls’; column does not allow nulls. %ls fails.
This error message appears when you try to insert a NULL marker into a column for which the NOT NULL constrain exists.
The T-SQL statement can be parsed, but causes the error at runtime.
Error 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 must either supply a valid value for the column or drop the NOT NULL constraint from the column.
All versions of SQL Server.
IF OBJECT_ID(‘t’) > 0
DROP TABLE t
CREATE TABLE t
c1 INT NOT NULL
INSERT INTO t VALUES(NULL)
In the above example we try to insert a NULL marker into the column c1 of the table t. This raises the error.