|
Problem IC67263
|
Status: Geschlossen |
CREATION OF SUBVIEW SUCCEEDS BUT SHOULD FAIL WITH SQLCODE SQL20053 REASON CODE 2, SQLSTATE 428EA |
| Produkt: |
DB2 FOR LUW / DB2FORLUW / 980 - DB2 |
| Problembeschreibung: |
For a hierarchy of views and subviews: Let BR1 and BR2 be any
branches that appear in the definitions of views in the
hierarchy. Let T1 be the underlying table or view of BR1, and
let T2 be the underlying table or view of BR2. Then:
* If T1 and T2 are not in the same hierarchy, then the root
view in the view hierarchy must specify the UNCHECKED option for
its OID column.
* If T1 and T2 are in the same hierarchy, then BR1 and BR2
must contain predicates or ONLY-clauses that are sufficient to
guarantee that their row-sets are disjoint.
The second requirement is not always correctly enforced, this
can happen if there is a predicate that compares two different
columns. For example:
CREATE VIEW v1 OF vt1 MODE DB2SQL (REF IS oid USER GENERATED)
AS SELECT vt1(VARCHAR(oid)), 1 FROM legacy
WHERE c1 = 40;
CREATE VIEW v2 OF vt2 MODE DB2SQL UNDER v1 INHERIT SELECT
PRIVILEGES
EXTEND AS SELECT 2 FROM legacy
WHERE c1 = 30 or c1 = c2;
The creation of v2 should be blocked with SQLSTATE 428EA but it
is not. |
| Problem-Zusammenfassung: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* For a hierarchy of views and subviews: Let BR1 and BR2 be *
* any *
* branches that appear in the definitions of views in the *
* *
* hierarchy. Let T1 be the underlying table or view of BR1, *
* and *
* let T2 be the underlying table or view of BR2. Then: *
* *
* *
* *
* * If T1 and T2 are not in the same hierarchy, then the *
* root *
* view in the view hierarchy must specify the UNCHECKED option *
* for *
* its OID column. *
* *
* * If T1 and T2 are in the same hierarchy, then BR1 and *
* BR2 *
* must contain predicates or ONLY-clauses that are sufficient *
* to *
* guarantee that their row-sets are disjoint. *
* *
* *
* *
* The second requirement is not always correctly enforced, *
* this *
* can happen if there is a predicate that compares two *
* different *
* columns. For example: *
* *
* *
* *
* CREATE VIEW v1 OF vt1 MODE DB2SQL (REF IS oid USER *
* GENERATED) *
* AS SELECT vt1(VARCHAR(oid)), 1 FROM legacy *
* *
* WHERE c1 = 40; *
* *
* *
* *
* CREATE VIEW v2 OF vt2 MODE DB2SQL UNDER v1 INHERIT SELECT *
* *
* PRIVILEGES *
* *
* EXTEND AS SELECT 2 FROM legacy *
* *
* WHERE c1 = 30 or c1 = c2; *
* *
* *
* *
* The creation of v2 should be blocked with SQLSTATE 428EA but *
* it *
* is not. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 version 9.8 fix pack 3 *
**************************************************************** |
| Local-Fix: |
|
| verfügbare FixPacks: |
DB2 Version 9.8 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.8 Fix Pack 4 for AIX and Linux
DB2 Version 9.8 Fix Pack 5 for AIX and Linux
|
| Lösung |
First fixed in DB2 version 9.8 fix pack 3 |
| Workaround |
keiner bekannt / siehe Local-Fix |
| Weitere Daten |
Datum - Problem gemeldet :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
| 16.03.2010
20.12.2010
20.12.2010 |
| Problem behoben ab folgender Versionen (IBM BugInfos) |
9.8.FP3
|
| Problem behoben lt. FixList in der Version |
| 9.8.0.3
|
 |
