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doesn;t BEGIN ATOMIC implicitly mean commitment control?--
On Thu, Feb 13, 2020 at 6:22 PM Filip Drzewiecki via RPG400-L <
rpg400-l@xxxxxxxxxxxxxxxxxx> wrote:
Hi,in
I have a commitment control issue which we can't resolve and in my
opinion, it should not work in that way.
Even if there is some wrong logic in below code, I can't understand
why some transaction runs under commit while they should not.
The problem here is that update on TESTTABLE run under commit but
actual trigger has commit=*none. Next time it run's properly without
commit and
another loop it run under commit again(in TESTPGM I do updates inand
loop
it looks every run it behave differently).because
The weirdest thing is that it works just fine if I'll simply remove
exec sql select... from program TESTPGM After I've added exec sql
select... to pgm TESTPGM, weird things start to happen with some
transaction's run under commit why they should not
of triggers compiled with commit=*none I can't understand why thisfdrzewiecki@xxxxxxxxxxxxxxxxx
one simple sql select break the whole setup.
Everything works just fine without embeded sql used in program.
DROP TABLE TESTLIB.TESTTABLE;
CREATE TABLE TESTLIB.TESTTABLE (
ID INTEGER GENERATED ALWAYS AS IDENTITY,
CODE INTEGER NOT NULL,
DESC CHAR(10) NOT NULL)
INSERT
INTO TESTLIB.TESTTABLE (CODE, DESC)
VALUES (1, ''), (2, '');
CREATE TABLE TESTLIB.TESTMQT ( TESTCODE, TESTDESC ) AS
(SELECT DECIMAL(CODE, 5), DESC
FROM TESTLIB.TESTTABLE) DATA INITIALLY IMMEDIATE
REFRESH DEFERRED ENABLE QUERY OPTIMIZATION MAINTAINED BY USER RCDFMT
TESTMQT ;
CREATE UNIQUE INDEX TESTLIB.TESTIDX
ON TESTLIB.TESTMQT (TESTCODE);
CREATE OR REPLACE TRIGGER TESTLIB.TESTTRGUP NO CASCADE BEFORE Update
On TESTLIB.TESTMQT REFERENCING OLD As vOld
NEW As vNew
For Each Row Mode DB2ROW
SET OPTION COMMIT=*NONE
BEGIN ATOMIC
UPDATE TESTLIB.TESTTABLE
SET
CODE = vNew.TESTCODE,
DESC = vNew.TESTDESC
WHERE
CODE = vOld.TESTCODE; END;
CREATE TABLE TESTLIB.TESTPF ( TESTCOL CHAR(10) NOT NULL) RCDFMT
TESTRF;
CREATE TABLE TESTLIB.TESTTBL(
ID INTEGER GENERATED ALWAYS AS IDENTITY,
COLUMN CHAR(10) NOT NULL)
CREATE OR REPLACE TRIGGER TESTLIB.TESTPFTRGUP NO CASCADE BEFORE
Update On TESTLIB.TESTPF REFERENCING OLD As vOld
NEW As vNew
For Each Row Mode DB2ROW
SET OPTION COMMIT=*NONE
BEGIN ATOMIC
UPDATE TESTLIB.TESTTBL
SET
COLUMN = vNew.TESTCOL
WHERE
COLUMN = vOld.TESTCOL; END;
INSERT INTO TESTLIB.TESTPF VALUES '';
TESTCL.CLLE
PGM
STRCMTCTL LCKLVL(*CHG) CMTSCOPE(*JOB) CALL TESTPGM COMMIT ENDCMTCTL
ENDPGM
TESTPGM.RPGLE
**FREE
Ctl-Opt DATEDIT(*DMY/) Option(*nodebugio:*srcstmt);
Dcl-F TESTPF Usage(*Update:*Delete:*Output) Commit; Dcl-F TESTIDX
Usage(*Update:*Delete:*Output) Keyed ; Dcl-S Index Packed(4) Inz(0);
dcl-s id int(5);
exec sql set option commit=*none;
exec sql select id into :id from testtable limit 1;
Dow Index < 100;
Setll(e) *start TESTPF;
Read(e) TESTPF;
TESTCOL = %Char(Index+1);
Update(e) TESTRF;
Chain(e) (2) TESTIDX;
TESTDESC = %Char(Index);
Update(e) TESTMQT;
Chain(e) (1) TESTIDX;
TESTDESC = %Char(Index);
Update(e) TESTMQT;
Setll(e) *start TESTPF;
Read(e) TESTPF;
TESTCOL = %Char(Index);
Update(e) TESTRF;
Index+=1;
EndDo;
*INLR = *on;
Filip Drzewiecki
RPG Developer
e-mail: fdrzewiecki@xxxxxxxxxxxxxxxxx<mailto:
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