Nonstop Database, HiRDB Version 9 System Operation Guide
When the definition of a table or index is modified, all the stored procedures and stored functions that use that table or index are invalidated. In such a case, the invalidated stored procedures and stored functions can be re-created, as explained in this section.
ALTER PROCEDURE or ALTER ROUTINE is used to re-create a stored procedure. ALTER ROUTINE is used to re-create a stored function.
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