HP NonStop SQL/MP Programming Manual page 167

Program Invalidation and Automatic SQL
Recompilation

Changing a collation, which includes dropping and then re-creating the collation,
renaming a collation, or changing a DEFINE that points to a collation

Executing an UPDATE STATISTICS statement with the RECOMPILE option
for a table (RECOMPILE is the default option)

Restoring a table, including an underlying table of a protection or shorthand view,
using the RESTORE program with the SQLCOMPILE OFF option specified
Changes to the AUDIT Attribute
Changing the AUDIT attribute of a table referenced by an SQL statement does not
invalidate the program file. However, changing the AUDIT attribute can cause
automatic SQL recompilation, if it is allowed in these cases:

If a statement performs a DELETE or UPDATE set operation on a nonaudited table
with a SYNCDEPTH of 1, the SQL executor returns SQL error 8203 and forces the
automatic recompilation of the statement.

If a statement is run in parallel on a table whose AUDIT attribute has changed
since the last explicit SQL compilation, the SQL executor returns SQL error 8207
and forces the automatic recompilation of the statement.
Operations That Do Not Invalidate a Program File
These operations performed on an SQL program file or to an SQL object referenced by
an SQL program file do not invalidate the program file:

Renaming a program file

Altering the security or owner of a program file or an SQL object

Restoring a program file using the RESTORE program with the SQLCOMPILE ON
option specified

Creating a view on a table

Altering the file attributes of a table, except for changes to the AUDIT attribute as
described in

Adding an index to a table using the CREATE INDEX statement with the
NO INVALIDATE option

Adding or dropping comments on an SQL object

Executing an UPDATE STATISTICS statement with the NO RECOMPILE option
specified for a table
HP NonStop SQL/MP Programming Manual for C—429847-008
Changes to the AUDIT Attribute
8-3
Causes of Program Invalidation