Variable not always getting a value

I have a PL/SQL procedure (Oracle 10gR2 database ) that runs daily, here is a portion of it:-
create or replace
PROCEDURE         "GLCONV_PREP" IS
BEGIN
DECLARE
    PROC_DT DATE := NULL;
     BEGIN
    SELECT (MAX(GL_CONV_SENT)+1) INTO PROC_DT FROM GLIF_ARCH;
    dbms_output.put_line ('PROC_DATE=' || TO_CHAR(PROC_DT, 'yyyy-mm-dd'));
EXCEPTION
WHEN OTHERS THEN
    -- LOG - Record the ERROR and RAISE it
    RAISE;
END;
END;
The column in the Table is defined as
COLUMN_NAME     DATA_TYPE     NULLABLE     DATA_DEFAULT     COLUMN_ID     COMMENTS
GL_CONV_SENT     DATE               Yes                                             36
Some sample data
KEY_1_POSTING_DATE TRANS_DATE ODS_LOAD_DATE CMP        GL_CONV_SENT   COUNT(*)
2014-01-26         2014-01-26 2014-01-27    2014-01-26 2014-01-26        53970
2014-01-26         2014-01-27 2014-01-27    2014-01-27 2014-01-27        39780
2014-01-27         2014-01-16 2014-01-28    2014-01-27 2014-01-27            6
2014-01-27         2014-01-17 2014-01-28    2014-01-27 2014-01-27            6
2014-01-27         2014-01-23 2014-01-28    2014-01-27 2014-01-27            2
2014-01-27         2014-01-24 2014-01-28    2014-01-27 2014-01-27           48
2014-01-27         2014-01-25 2014-01-28    2014-01-27 2014-01-27           20
2014-01-27         2014-01-26 2014-01-27    2014-01-27 2014-01-27         1590
2014-01-27         2014-01-27 2014-01-27    2014-01-27 2014-01-27         7432
2014-01-27         2014-01-27 2014-01-28    2014-01-27 2014-01-27       138022
2014-01-27         2014-01-28 2014-01-28    2014-01-28 2014-01-28        39882
2014-01-28         2014-01-02 2014-01-29    2014-01-28 2014-01-28            2
2014-01-28         2014-01-22 2014-01-29    2014-01-28 2014-01-28            2
2014-01-28         2014-01-24 2014-01-29    2014-01-28 2014-01-28           16
2014-01-28         2014-01-25 2014-01-29    2014-01-28 2014-01-28            2
2014-01-28         2014-01-27 2014-01-28    2014-01-28 2014-01-28         2422
2014-01-28         2014-01-27 2014-01-29    2014-01-28 2014-01-28           62
2014-01-28         2014-01-28 2014-01-28    2014-01-28 2014-01-28         6344
2014-01-28         2014-01-28 2014-01-29    2014-01-28 2014-01-28       143416
2014-01-28         2014-01-29 2014-01-29    2014-01-29 2014-01-29        39962
2014-01-29         2014-01-21 2014-01-30    2014-01-29 2014-01-29            4
2014-01-29         2014-01-22 2014-01-30    2014-01-29 2014-01-29            4
2014-01-29         2014-01-24 2014-01-30    2014-01-29 2014-01-29            4
2014-01-29         2014-01-25 2014-01-30    2014-01-29 2014-01-29            4
2014-01-29         2014-01-27 2014-01-30    2014-01-29 2014-01-29           16
2014-01-29         2014-01-28 2014-01-29    2014-01-29 2014-01-29         4720
2014-01-29         2014-01-28 2014-01-30    2014-01-29 2014-01-29           62
2014-01-29         2014-01-29 2014-01-29    2014-01-29 2014-01-29         2712
2014-01-29         2014-01-29 2014-01-30    2014-01-29 2014-01-29       149838
2014-01-29         2014-01-30 2014-01-30    2014-01-30                   40006
2014-01-30         2014-01-23 2014-01-31    2014-01-30                       4
2014-01-30         2014-01-27 2014-01-31    2014-01-30                       2
2014-01-30         2014-01-29 2014-01-30    2014-01-30                    2500
2014-01-30         2014-01-29 2014-01-31    2014-01-30                      22
2014-01-30         2014-01-30 2014-01-30    2014-01-30                    7032
2014-01-30         2014-01-30 2014-01-31    2014-01-30                  214346
2014-01-30         2014-01-31 2014-01-31    2014-01-31                   39944
2014-01-31         2014-01-30 2014-01-31    2014-01-31                    2466
2014-01-31         2014-01-31 2014-01-31    2014-01-31                   48340
Every day when the procedure runs the previous days date is set in the GL_CONV_SENT column for that days data.
So the column basically has records with GL_CONV_SENT date set for the data for the day.
The new data that has not been processed has a GL_CONV_SENT of NULL..
So for this mornings run the PROC_DATE should have been (MAX(GL_CONV_SENT)+1) = 2014-01-30
On 6 days out of 7 it runs perfectly, the PROC_DATE has the correct date in it and the extracts are produced.
On the one random day the PROC_DT variable is not set, probably NULL and the procedure fails, even though the date is already set for previous days in GL_CONV_SENT.
So there at least should always be a date in PROC_DT.
This procedure has been running for almost 4 years with no issue.
Only recently is this happening.
Does anyone have an idea of what could be causing this?

The procedure is basically as laid out in the sample script.
The first 7 lines are from the procedure and the line
     SELECT (MAX(GL_CONV_SENT)+1) INTO PROC_DT FROM GLIF_ARCH;
works most days, except today again the PROC_DT was NULL so the rest of the procedure did nothing as it uses this date to determine the data to process.
The Table is defined as below:-
CREATE TABLE "P_ARC"."GLIF_ARCH"
   ( "KEY_1" CHAR(39 CHAR),
"KEY_1_POSTING_DATE" DATE,
"KEY_1_SYSTEM_DATE" DATE,
"KEY_1_POSTING_TIME" CHAR(8 CHAR),
"KEY_1_SOURCE" CHAR(1 CHAR),
"KEY_1_JOURNAL_NBR" NUMBER(9,0),
"KEY_1_JOURNAL_SEQ" NUMBER(2,0),
"SOC" CHAR(3 CHAR) DEFAULT (LPAD(CHR(0),003,CHR(0))),
"BRCH" CHAR(5 CHAR) DEFAULT (LPAD(CHR(0),005,CHR(0))),
"FCY_CODE" CHAR(3 CHAR) DEFAULT (LPAD(CHR(0),003,CHR(0))),
"GL_CLASS_CODE" VARCHAR2(40 CHAR) DEFAULT (LPAD(CHR(0),040,CHR(0))),
"GLCC_CURRENCY" CHAR(3 CHAR) DEFAULT (LPAD(CHR(0),003,CHR(0))),
"GLCC_BRANCH" CHAR(5 CHAR) DEFAULT (LPAD(CHR(0),005,CHR(0))),
"GLCC_ACCOUNT_NR" CHAR(6 CHAR),
"DESCRIPTION" VARCHAR2(30 CHAR) DEFAULT (LPAD(CHR(0),030,CHR(0))),
"POSTING_IND" CHAR(1 CHAR) DEFAULT (LPAD(CHR(0),001,CHR(0))),
"TRANS_DATE" DATE DEFAULT NULL,
"LCY_AMT" NUMBER(17,3) DEFAULT (0),
"FCY_AMT" NUMBER(17,3) DEFAULT (0),
"REVERSAL_CODE" CHAR(1 CHAR) DEFAULT (LPAD(CHR(0),001,CHR(0))),
"REVERSAL_DATE" DATE DEFAULT NULL,
"GLIF_REFERENCES" CHAR(16 CHAR) DEFAULT (LPAD(CHR(0),016,CHR(0))),
"SOURCE_APPLN" CHAR(3 CHAR) DEFAULT (LPAD(CHR(0),003,CHR(0))),
"PS_JOURNAL_ID" CHAR(10 CHAR) DEFAULT (LPAD(CHR(0),010,CHR(0))),
"PS_JOURNAL_NBR" NUMBER(9,0) DEFAULT (0),
"CNTL_CENTRE" CHAR(5 CHAR) DEFAULT (LPAD(CHR(0),005,CHR(0))),
"LCY_NPV_AMT" NUMBER(17,3) DEFAULT (0),
"FCY_NPV_AMT" NUMBER(17,3) DEFAULT (0),
"PROMO_NO" CHAR(2 CHAR) DEFAULT (LPAD(CHR(0),002,CHR(0))),
"ISLAMIC_BANK" CHAR(1 CHAR) DEFAULT (LPAD(CHR(0),001,CHR(0))),
"HOME_BRCH" CHAR(5 CHAR) DEFAULT (0),
"ACCT_TYPE" CHAR(4 CHAR) DEFAULT (0),
"TELLER_NO" CHAR(8 CHAR) DEFAULT (0),
"MISC_REFERENCE" CHAR(8 CHAR) DEFAULT (LPAD(CHR(0),008,CHR(0))),
"ODS_LOAD_DATE" DATE DEFAULT (SYSDATE),
"GL_CONV_SENT" DATE,
CHECK ("KEY_1" IS NOT NULL) ENABLE,
CHECK ("ODS_LOAD_DATE" IS NOT NULL) ENABLE
   ) PCTFREE 10 PCTUSED 0 INITRANS 1 MAXTRANS 255 NOCOMPRESS NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "ODS01"
PARALLEL ENABLE ROW MOVEMENT ;
The insert statement is in a procedure called prior to the GLCONV_PREP proc
The procedure that inserts the data from GLIF_TMP to GLIF_ARCH is always successful and the GLCONV_SENT is always NULL in GLIF_ARCH table
The Insert statement is as below:-
BEGIN --LOAD_ARCH
     INSERT
       INTO GLIF_ARCH
        KEY_1             ,
        KEY_1_POSTING_DATE,
        KEY_1_SYSTEM_DATE ,
        KEY_1_POSTING_TIME,
        KEY_1_SOURCE      ,
        KEY_1_JOURNAL_NBR ,
        KEY_1_JOURNAL_SEQ ,
        SOC               ,
        BRCH              ,
        FCY_CODE          ,
        GL_CLASS_CODE     ,
        GLCC_CURRENCY     ,
        GLCC_BRANCH       ,
        GLCC_ACCOUNT_NR   ,
        DESCRIPTION       ,
        POSTING_IND       ,
        TRANS_DATE        ,
        LCY_AMT           ,
        FCY_AMT           ,
        REVERSAL_CODE     ,
        REVERSAL_DATE     ,
        GLIF_REFERENCES   ,
        SOURCE_APPLN      ,
        PS_JOURNAL_ID     ,
        PS_JOURNAL_NBR    ,
        CNTL_CENTRE       ,
        LCY_NPV_AMT       ,
        FCY_NPV_AMT       ,
        PROMO_NO          ,
        ISLAMIC_BANK      ,
        HOME_BRCH         ,
        ACCT_TYPE         ,
        TELLER_NO         ,
        MISC_REFERENCE
         SELECT
          KEY_1_NEW         ,
          KEY_1_POSTING_DATE,
          KEY_1_SYSTEM_DATE ,
          KEY_1_POSTING_TIME,
          KEY_1_SOURCE      ,
          KEY_1_JOURNAL_NBR ,
          KEY_1_JOURNAL_SEQ ,
          SOC               ,
          BRCH              ,
          FCY_CODE          ,
          GL_CLASS_CODE     ,
          GLCC_CURRENCY     ,
          GLCC_BRANCH       ,
          GLCC_ACCOUNT_NR   ,
          DESCRIPTION       ,
          POSTING_IND       ,
          TRANS_DATE        ,
          LCY_AMT           ,
          FCY_AMT           ,
          REVERSAL_CODE     ,
          REVERSAL_DATE     ,
          GLIF_REFERENCES   ,
          SOURCE_APPLN      ,
          PS_JOURNAL_ID     ,
          PS_JOURNAL_NBR    ,
          CNTL_CENTRE       ,
          LCY_NPV_AMT       ,
          FCY_NPV_AMT       ,
          PROMO_NO          ,
          ISLAMIC_BANK      ,
          HOME_BRCH         ,
          ACCT_TYPE         ,
          TELLER_NO         ,
          MISC_REFERENCE
           FROM       GLIF_TMP
          WHERE
          KEY_1_OLD IS NULL
    COMMIT;
The source table GLIF_TMP does not have a GL_CONV_SENT column.
So as the GL_CONV_SENT in GLIF ARCH is nullable when the above insert is performed the GL_CONV_SENT value will be NULL as there is no value set for it in the insert statement... or have I got that wrong?
By the way there is no EXCEPTION raised, basically the PROC_DT is null so no processing occurs.

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I have seen that exact same issue, once for sure, maybe twice. Logging off and back on did not fix it. But I waited for maybe 30 minutes or an hour and the next time I tried it worked just fine. I have no idea what the problem is (my guess is website maintenance), but it is real, but also not very frequent, at least for me.
spacedebris,
Re: speed of the forums. I have at times had terrible performance issues with the Verizon forum, and gee whiz, I am on FiOS, supposedly the fastest internet around! But I found what for me at least was the issue - a couple of links on forum pages to what appear to be websites that monitor and measure your activity on the Verizon site. The links are to hitbox.com and webtrendslive.com. Sometimes (fairly frequently) it would take 30 seconds or more for a page to load completely. I eliminated that problem entirely in Firefox by blocking those sites using the Adblock Plus add-on. Pages from the forums now load in usually 1-3 seconds, rarely as long as 5. Since you said you use Firefox you might want to try blocking those two sites with Adblock Plus. As for IE, I don't know if there is any tool to acomplish the same thing, I pretty much never use IE any more.
Justin
Verizon FiOS TV, Internet, and phone
QIP6416-P1, IMG 1.7.1, Build 09.97
Keller, TX 76248

Why do my calendars not always update 9or update right away?)

I am not sure i am following APPLE's instructions correctly as I don't get consistent results. Can someone help? Thanks.
I have the newest IPOD TOUCH. And some things I have entered on my MACs and even work PCs (me.com calendars eventually showed up on my ipod touch. Vice versa too.) Problem is that this is not consistent. I occasionally find something does not make it, especially from internet (me.com) to the IPOD.
I THINK my IPOD TOUCH settings may be the problem.
They are
PUSH--> ON
FETCH --> MANUAL
I have tried other ways, and the results are always unclear. I thought to save the battery PUSH should be off, or is it only FETCH?
I have wifi on AT HOME. But only to get mail sent to my IPOD. Out on the street and at work there IS no wifi. But anyway, on or off, it seems like I need to have my usb connector plugged in to sync. So I do that too.
SO, Calendar--> PUSH ON OR OFF? FETCH ON OR OFF? WIFI ON OR OFF?
Now Push on, wifi on.
MAC settings too are confusing. There is SYSTEM PREFERENCES and Itunes.
Here they are for my PPC G5 running 10.5.5 and Intel Macbook Pro running 10.4.4)
MOBILE ME (SYSTEM PREFERENCES)
Sync (all items checked except, on the desktop, the mysteriously named "com.panic.transmit.favorites". So that includes calendars. And set for AUTOMATICALLY.
NOTE!!
---> THIS ONE ---WAS-- SET FOR AUTO, BUT JUST NOW I SWITCHED TO MANUAL AND IT DID WORK!!
-> DOES THIS MEAN I FOUND THE SOLUTION? OR A FLUKE???
ADVANCED shows the two machines being synced
ITUNES SETTING
Contacts and Calendars are synced "OVER THE AIR" from Mobile ME. That implies wifi? But regardless, with or without, plugged in or not, I do not always get things synced.
Mail account--only have me.com. before I had the other email I use, but it seemed to create multiple instances of Mobile me on my IPOD and also multiple calendars "On my Ipod" and UNTITLED Account" So now I leave only mobile,me checked. (see below ADVANCED)
Advanced:
REPLACE INFO ON THIS IPOD.... Or, THIS may have been the culprit, so now I leave this off
So, now I am left wondering if any of my settings are less than desired. And is the syncing, when it happens, occurring over wifi or over the USB? So far, the one setting that seems to MAYBE make a difference is in SYSTEM preferences-->changing to SYCH WITH MOBILE ME MANUAL (whereas before it was AUTO).
Thanks

tokyoprogressive wrote:
Thank very much for your answer. Let me see if I understand.
I have Mobile Me (this mac account and a set of calendars: home and work)
Fairly similar to my set up.
Ok...I have PUSH ON and FETCH MANUAL. But then in ADVANCED it says MOBILE ME CONTACTS AND CALENDARS --> PUSH. And MAIL also PUSH.
Though I am not sure what this actually means. So far, I seem to get things to happen
Rule 555: if it ain't broke, don't fix it.
Stuff from Mobile Me comes down automatically. That was supposed to be Push (instant), but Apple had to admit that in reality for now, there is going to be some delay. Even so, if I time it well, mail and calendar changes arrive elsewhere as soon as I make them on the computer or the touch or even the cloud.
Some apps do not support Push, so that Manual (or the times) cover that situation.
automatically IF I have wifi on at home and the calendar app is open. In other words, do PUSH And FETCH settings work if using USB and NO WIFI (on my home computer?)
No. By selecting the Mobile Me method, the USB syncs are closed off.
This works with wifi if you have Mobile Me (but then subscribed calendars do not sync).
Ok.
You mean other things sync but not calendars? I am not sure how I actually subscribe them. I just see the same info now on the web and on my TOUCH.
Your ordinary calendars do, but those you subscribe to (for example I subscribe to a calendar that I found on a website that gives me Formula 1 schedule; and my boss at work gives me a calendar I subscribe to). My basic calendars are fine, but the subscribed calendars do not even appear in Mobile Me or on the touch.
Hm. So far with that specific computer I can ONLY get wifi and not USB. You said I can turn it off??? You mean by turing PUSH to off? So PUSH off, no sync. Push on, sync.
Right. The Sync would be via USB, but that only syncs the touch and the computer, the computer would also sync with the cloud. OK, if you only have one computer, I guess. Syncs from the touch wait until you come home and plug it in.
So turning on MOBILE ME (PUSH???) makes SYNC via USB stop working?
That is right. If you look in the information panel in iTunes when you have the touch connected, that is what is indicated.
Thanks you. As you see, I am still very foggy about this all. It seems like the USB is good for charging and Itunes stuff, but that the calendar only syncs with PUSH on and FETCH set to, so far for me, MANUAL.
You have that about right, Yes.
And yet on some of its pages Apple says you should turn off PUSH and/or FETCH to save battery life.
Right. If you are in a situation where Push is not going to work for a few hours (like on a plane, or in the middle of a desert) it makes no sense to discharge a battery unnecessarily. If you are in and out of Starbucks in the US, or somewhere that has wifi on that you can link to -- and you do update a lot, or read email -- then keep it on.
Glad to have been of help.
Graham

DAQmx and TDMS not always working

Hello,
I am new to the DAQmx and TDMS vi's and am hoping someone will be able to help me. The attached code contains several case structures, however only one of them has the DAQmx and TDMS vi's running through them. My intent is to record the voltage output from two photodetectors as I scan the current of a diode laser controller. When I run this code it does not always record the values while I am scanning and when I quit the program the TDMS file viewer will show me no data. Sometimes, but rarely, it will show me some data. The stacked sequence within the case structure is the code that runs the laser controller and a couple of translational mounts. The DAQmx and TDMS vi's that should record the data are just next to that.
Thank you!
Alfredo
Solved!
Go to Solution.
Attachments:
LDC3714B_v9_test.vi ‏305 KB

I just ran the code about 5 times and it only recorded the data I was expecting once even though I changed nothing. I am attaching the code with the subvi's.
What I mean by "only one of them has the DAQmx and TDMS vi's running through them" is that the data is only recorded using these vi's once only one of the many case structures is activated. I'm simply pointing out that the vi's are not used anywhere else.
Also in the DAQmxRead vi, should I have Analog 2D DBL or Analog 1D Waveform?
I think the problem with the inconsistency in my code might be because I have a Stached Sequence Structure within the Case Structure where the vi's are.
Thank you.
Alfredo
Attachments:
Code.zip ‏252 KB

Variable not always getting a value

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