CROSS APPLY Sp_addextendedproperty

I am trying to add Extended properties to each of the columns in my table('MyTable')to the columns

DECLARE @NewTableName as nvarchar(128);

SET @NewTableName = 'MyTable'


SELECT ColumnName FROM(

SELECT c.name as ColumnName

FROM syscolumns c

INNER JOIN sysobjects o

ON o.id = c.id

WHERE o.name = @NewTableName) as T

OUTER APPLY

sp_addextendedproperty( 'Caption', ColumnName,





'user', 'dbo',

'table', @NewTableName,

'column', ColumnName)


I am getting an invalid object name 'sp_addextendedproperty' error.


Jaime