Error Message:
Msg 1766, Level 16, State 0, Line 3
Foreign key references to temporary tables are not supported. Foreign key ‘%.*ls’.
Severity level:
16.
Description:
This error message appears when you try to create a foreign key constraint referencing a temporary table.
Consequences:
The T-SQL statement can be parsed, but causes the error at runtime.
Resolution:
Errors of the Severity Level 15 are generated by the user and can be fixed by the SQL Server user. The statement cannot be executed this way. You cannot create a foreign key constraint referencing a temporary table.
Versions:
All versions of SQL Server.
Example(s):
IF OBJECT_ID (‘#T2’) IS NOT NULL
DROP TABLE #T2;
GO
IF OBJECT_ID (‘dbo.T1’) IS NOT NULL
DROP TABLE dbo.T1;
GO
CREATE TABLE #T2 (c1 varchar(20) NOT NULL PRIMARY KEY);
CREATE TABLE dbo.T1 (c1 varchar(20) NOT NULL PRIMARY KEY
CONSTRAINT FK_T2_T1 FOREIGN KEY REFERENCES #t (c1));
Remarks:
In the abve example we try to create a foreign key constraint referencing the temporary table #t. This raises the error.
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