Select query having count function is returning null

Hi Everyone,
Please see the query and help me to get this solved.
DB version
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bi
PL/SQL Release 10.2.0.1.0 - Production
"CORE     10.2.0.1.0     Production"
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - ProductionQUERY
SELECT COUNT(*) as V_COUNT
      FROM LAB_ORDER_TMPLT_TEST
      WHERE TEST_ID IN
      (SELECT WEST_TEST_ID
              FROM TEST_CODE_CONVERSION TCC
              WHERE TCC.EAST_TEST_ID = 2769)
      GROUP BY LAB_ORDER_TMPLT_ID
      HAVING COUNT(*) > 1;
It's returning null. Is there any way I can get the value as zero instead of null? Please help.Regards,
BS2012.

Hi,
BS2012 wrote:
Hi Everyone,
Please see the query and help me to get this solved.
DB version
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bi
PL/SQL Release 10.2.0.1.0 - Production
"CORE     10.2.0.1.0     Production"
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - ProductionQUERY
SELECT COUNT(*) as V_COUNT
FROM LAB_ORDER_TMPLT_TEST
WHERE TEST_ID IN
(SELECT WEST_TEST_ID
FROM TEST_CODE_CONVERSION TCC
WHERE TCC.EAST_TEST_ID = 2769)
GROUP BY LAB_ORDER_TMPLT_ID
HAVING COUNT(*) > 1;
It's returning null.
Really? COUNT never returns NULL; it always returns 0 or a positive integer.
Do you mean the query results in "no rows selected"?
Is there any way I can get the value as zero instead of null? Please help.Do you want a query that will produce the same output as the query above, but will produce a single row containing 0 when the query above does not produce anything? That sounds like a job for an outer join:
WITH    original_query AS
       SELECT COUNT(*) AS v_count
       FROM    lab_order_tmplt_test
       WHERE   test_id IN
                   (   SELECT west_test_id
                       FROM        test_code_conversion tcc
                       WHERE   tcc.east_test_id = 2769
       GROUP BY lab_order_tmplt_id
SELECT     NVL (o.v_count, 0)     AS v_count
FROM               dual
LEFT OUTER JOIN original_query o ON o.v_count > 0
;If you'd care to post CREATE TABLE and INSERT statements for the sample data, then I could test this.

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A B C
1 2 2
2 1 3
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1 10 02-JAN-11 31-JAN-11 89 -
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Confusion in Select query having a inner join on single table

Hi,
I was going through coding and came a accross a select query which has a inner join on a single table. I am getting confused while analysing this . Please someone can help me analysing this query.
select
        m~MATERIAL
        s~NUMERATOR s~DENOMINTR
        m~GROSS_WT m~UNIT_OF_WT
      into table itab
      from ( table1as s
       inner join table1 as m
       on m~MATERIAL = s~MATERIAL
      and m~MAT_UNIT = 'CS'
      and m~SOURSYSTEM = s~SOURSYSTEM )
      where s~MAT_UNIT = 'EA'
         and s~SOURSYSTEM = 'LD'
         and s~OBJVERS = 'A'
         and s~MATERIAL IN ( Select mat_sales
            from Table2 group by mat_sales ).
Thank you
Kusuma

I don't see any use of the INNER JOIN here.
But what's the meaning of the last selection clause?
s~MATERIAL IN ( Select mat_sales
            from Table2 group by mat_sales ).
Is that native SQL or something?
Pushpraj

SQL Query (PL/SQL function body returning SQL query) Error

I'm an ApEx newbie, not a PL/SQL developer (more of a Web application developer) and I'm getting an error that prevents me from saving some PL/SQL code. I've looked over it all afternoon, but can't tell what's wrong. I may even be trying to do something inappropriately, or really stupid.
The code is below. The error I get is - "Function returning SQL query: Query cannot be parsed within the Builder". Any help is appreciated, and thanks in advance. If you need more details of what I'm trying to do let me know.
= = = = = = =
DECLARE
v_ID NUMBER;
v_SITE_ID NUMBER;
v_SITE_CODE VARCHAR2(15);
v_ADDR1 VARCHAR2(240);
v_CITY VARCHAR2(25);
v_STATE VARCHAR2(150);
v_ZIP VARCHAR2(20);
v_ORG_ID VARCHAR2(10);
BEGIN
IF :G_ORG_ID = '' THEN
SELECT "VENDOR_ID", "VENDOR_SITE_ID", "VENDOR_SITE_CODE", "ADDRESS_LINE1", "CITY", "STATE", "ZIP", "ORG_ID"
INTO v_ID, v_SITE_ID, v_SITE_CODE, v_ADDR1, v_CITY, v_STATE, v_ZIP, v_ORG_ID
FROM "PO_VENDOR_SITES_ALL_V"
WHERE ("VENDOR_ID" = :P4_VENDOR_ID);
ELSE
SELECT "VENDOR_ID", "VENDOR_SITE_ID", "VENDOR_SITE_CODE", "ADDRESS_LINE1", "CITY", "STATE", "ZIP", "ORG_ID"
INTO v_ID, v_SITE_ID, v_SITE_CODE, v_ADDR1, v_CITY, v_STATE, v_ZIP, v_ORG_ID
FROM "PO_VENDOR_SITES_ALL_V"
WHERE (("VENDOR_ID" = :P4_VENDOR_ID) AND ("ORG_ID" = :G_ORG_ID));
END IF;
END;

Denes,
Good question.
Before I answer that question I'll give some detail on the application. That may help too. The application is a supplier search which searches the Oracle vendor tables (po.vendors, po_vendor_sites_all, po_vendor_contacts). The vendor/vendor site relationship is one to many. The site is based on the Org_ID. The supplier search is built to work solo, or to be called by another application. If it is called by another application one of the values passed is the Org_ID, so that only the sites that pertain to the user's org_id are shown. If the appl is called solo the Org_ID is not known, so the SQL should return all sites.
I figured the easiest way to check if the program was running solo or was called was to check the G_ORG_ID value in my PL/SQL that builds the site report. You helped me with that code. (I am hiding buttons by checking if the G_ORG_ID field is null and they display/hide properly.)
So, how is G_ORG_ID populated? It is on Page Zero, and is populated via the URL when the appl is called. (That aspect works great.) If it is called by another application G_ORG_ID is populated and my PL/SQL works. But, if the appl is called solo the field is not populated. When the PL/SQL runs I cannot get it to run the code for when G_ORG_ID is not populated.
I am at the point that I don't know if I need to populate G_ORG_ID in some way when the appl is running solo (kinda tricky, because I need to use that field to determine if it is running solo), or if I need to check it differently in the PL/SQL IF.
I have experimented with both the default value, and have checked for different values in the PL/SQL IF, but nothing works.
Thanks for your help, and let me know if you have any other questions on this matter.
Thanks, Tony

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