This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.
The Alter method changes the definition of the referenced stored procedure, trigger, user-defined function, or view.
Microsoft SQL Server supports modifications to the definition of existing objects by using the Transact-SQL ALTER FUNCTION, ALTER PROCEDURE, ALTER TRIGGER, and ALTER VIEW statements. SQL Distributed Management Objects (SQL-DMO) implements execution of these statements through the Alter method of StoredProcedure, Trigger, and View objects.
Modifying a SQL Server database object by using the Alter method requires appropriate permissions. The SQL Server login used for SQLServer object connection must be mapped to a database user identified as the object owner or a member of a role with greater permissions.