Msg 6331, Level 16, State 201, Line 1
Primary XML Index ‘%.*ls’ already exists on column ‘%.*ls’ on table ‘%.*ls’, and multiple Primary XML Indexes per column are not allowed.
This error message appears when you try to create a XML index on a column for which already an XML index exists.
The T-SQL statement can be parsed, but causes the error at runtime.
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 can create only one XML index on a XML column.
This error message was introduced with SQL Server 2005.
IF OBJECT_ID(‘tempdb..#t’) > 0
DROP TABLE #t
CREATE TABLE #t
id INT PRIMARY KEY,
CREATE PRIMARY XML INDEX IX_XML_t_c1
CREATE PRIMARY XML INDEX IX_XML_t_c1_2
In the above example we try to create a primary XML index on the column c1 of the table #t. Because there already exists such a primary XML index, the error is raised.