Using a comparison to NULL in a CASE statement

Hi, please could anybody advise me if it is OK to use comparison to NULL in a CASE statement. Alternatively, will a NULL be accepted in a to_number function giving a result of a NULL in the number variable?
I have a list of varchar2 values which will either be a number, be equal to '95%' or be NULL. I need to translate that to a number column, removing the % from 95%.
I would like to know if the syntax below is allowed:
CASE vPurity
WHEN NULL THEN
nPurity = '';
WHEN '95%' THEN
nPurity := 95;
ELSE
nPurity := TO_NUMBER(vPurity);
END CASE;
Many thanks.

robust
adj.
1. Full of health and strength; vigorous.
2. Powerfully built; sturdy. See Synonyms at healthy.
3. Requiring or suited to physical strength or endurance: robust labor.
4. Rough or crude; boisterous: a robust tale.
5. Marked by richness and fullness; full-bodied: a robust wine.
By saying "Robust" you are saying that DECODE is somehow stronger or better than CASE. This is not the case (scuse the pun) as CASE is more flexible than DECODE and can be easier to read in the code. CASE also handles non-equality comparisons far easier than can be done in DECODE.

Similar Messages

How to eliminate NULL values from case statement?

I have the following query where I am trying to eliminate the NULL record. How can I do this? My query:
select
AttendedSchoolLast3Months = case
when d.scrnval_id = 'AA5639E4-E60C-473F-9B72-354472C11F5B' and d.picklist_value = 'BC349A1E-65A1-4497-A38A-116C83B2028F' then 2 --No
when d.scrnval_id = 'AA5639E4-E60C-473F-9B72-354472C11F5B' and d.picklist_value = 'A529C643-60A7-4D79-AC67-1A8F70791934' then 1 --Yes
end
From [evolv_cs].[dbo].[test_header] [test_header_rv] WITH (NOLOCK)
CROSS APPLY [dbo].[fn_getTestSetupFormDetails](null, [test_header_rv].[test_setup_header_id]) AS [test_header]
CROSS APPLY [dbo].[fn_getTestSetupFormDetails]([test_header].[test_setup_details_id], null) AS [test_details]
JOIN [evolv_reports].[dbo].[test_details_answers_expanded_view] d WITH (NOLOCK) ON
[test_header_rv].[test_header_id] = d.[test_header_id]
AND [test_details].[test_setup_details_id] = d.[test_setup_details_id]
join [user_defined_lut_rv] udl1 with(nolock) on udl1.[user_defined_lut_id] = d.picklist_value
join people_rv p (nolock) on d.people_id = p.people_id
where d.actual_date between '9/1/13' and '9/30/13'
and d.people_id = '7A9ACEE4-ABD5-4905-A54E-659A81048A1A'
And the result currently is:
AttendedSchoolLast3Months
1
NULL
When I ran this query:
select distinct --attendedschoollast3months
d.*
From [evolv_cs].[dbo].[test_header] [test_header_rv] WITH (NOLOCK)
CROSS APPLY [dbo].[fn_getTestSetupFormDetails](null, [test_header_rv].[test_setup_header_id]) AS [test_header]
CROSS APPLY [dbo].[fn_getTestSetupFormDetails]([test_header].[test_setup_details_id], null) AS [test_details]
JOIN [evolv_reports].[dbo].[test_details_answers_expanded_view] d WITH (NOLOCK) ON
[test_header_rv].[test_header_id] = d.[test_header_id]
AND [test_details].[test_setup_details_id] = d.[test_setup_details_id]
join [user_defined_lut_rv] udl1 with(nolock) on udl1.[user_defined_lut_id] = d.picklist_value
--join [education_level] e (nolock) on e.[EducationLevel] = udl1.[description]
join people_rv p (nolock) on d.people_id = p.people_id
where d.actual_date between '9/1/13' and '9/30/13'
and d.people_id = '7A9ACEE4-ABD5-4905-A54E-659A81048A1A'
I get this:
event_log_id people_id group_profile_id actual_date test_header_id test_setup_details_id test_domains_info_id question_caption question_code test_details_answers_id update_log_id test_details_id numeric_value scrnval_id picklist_value remarks narrative test_setup_details_answers_id is_checked date_value details_type_code test_setup_answers_caption test_setup_answers_order test_setup_answers_value output_code answers_category_id answers_category answers_category_code
24E8F88F-9648-4714-9394-D5A3F642C0F0 7A9ACEE4-ABD5-4905-A54E-659A81048A1A NULL 2013-09-26 17:00:00.000 24E8F88F-9648-4714-9394-D5A3F642C0F0 67CDCF44-6308-4E15-8543-3C85DE4C6D4D NULL Attended school in the last 3 months NULL 1BB75044-A65C-4464-ADB9-0CA991019907 7CDD1A4F-41F4-403C-A85E-7FF51B761FF0 3F04BBFF-8DE9-4283-842F-E53A536E3E46 NULL AA5639E4-E60C-473F-9B72-354472C11F5B A529C643-60A7-4D79-AC67-1A8F70791934 NULL NULL 5979600C-B4E6-42DF-BF45-8AFF15ACDD7D 0 NULL PICKLIST Click here for list 1 NULL NULL NULL NULL NULL
24E8F88F-9648-4714-9394-D5A3F642C0F0 7A9ACEE4-ABD5-4905-A54E-659A81048A1A NULL 2013-09-26 17:00:00.000 24E8F88F-9648-4714-9394-D5A3F642C0F0 EBDFBCA5-6E57-4907-9DEF-A1E118F3AB2D NULL Highest grade completed NULL 8F7F4644-4E67-4821-B0FC-A192389F994D 7CDD1A4F-41F4-403C-A85E-7FF51B761FF0 F6C59E67-EC74-4F0C-8EE8-AB372F22255D NULL 4536DD06-871D-4FA7-BA8A-552DB2CA59BC D77F0CAB-505E-4838-AECE-01BAAE8B8EB2 NULL NULL E7C9ECB7-7B40-4115-A6DB-BC752116D68D 0 NULL PICKLIST Click here for list 1 NULL NULL NULL NULL NULL
Ryan D

Hi,
what I understood from above is that u want to filter NULL records and want to display only not null records. Try below query.
SELECT * FROM(select
AttendedSchoolLast3Months = case
when d.scrnval_id = 'AA5639E4-E60C-473F-9B72-354472C11F5B' and d.picklist_value = 'BC349A1E-65A1-4497-A38A-116C83B2028F' then 2 --No
when d.scrnval_id = 'AA5639E4-E60C-473F-9B72-354472C11F5B' and d.picklist_value = 'A529C643-60A7-4D79-AC67-1A8F70791934' then 1 --Yes
end
From [evolv_cs].[dbo].[test_header] [test_header_rv] WITH (NOLOCK)
CROSS APPLY [dbo].[fn_getTestSetupFormDetails](null, [test_header_rv].[test_setup_header_id]) AS [test_header]
CROSS APPLY [dbo].[fn_getTestSetupFormDetails]([test_header].[test_setup_details_id], null) AS [test_details]
JOIN [evolv_reports].[dbo].[test_details_answers_expanded_view] d WITH (NOLOCK) ON
[test_header_rv].[test_header_id] = d.[test_header_id]
AND [test_details].[test_setup_details_id] = d.[test_setup_details_id]
join [user_defined_lut_rv] udl1 with(nolock) on udl1.[user_defined_lut_id] = d.picklist_value
join people_rv p (nolock) on d.people_id = p.people_id
where d.actual_date between '9/1/13' and '9/30/13'
and d.people_id = '7A9ACEE4-ABD5-4905-A54E-659A81048A1A' ) AWHERE AttendedSchoolLast3Months IS NOT NULLTry this query.
Thanks Shiven:) If Answer is Helpful, Please Vote

Case Statement doesn't switch.

Hello,
I'm having an odd problem with a case statement. I'm passing is a Boolean that is false but the case statement never switches over to the 'false' loop. I have attached a word doc that has the screen shot of this being single stepped through. The top picture has the case being highlighted with the probe #8 next to it indicating "False". In the lower screen shot is the very next step that is highlighting the outer 'while loop' but the case statement is still 'True'. Has anyone seen this before?
Gary Tyrna
Solved!
Go to Solution.
Attachments:
Case No Switch.doc ‏210 KB

Hi Mello,
Well I see what you are saying and you are correct the problem with it is the case statement works when highlight execution. But I have a main case statement in the loop that either allows the state machine loops to execute or hides them and that case switches during single stepping to true or false. So that was the reason I sent the first e-mail since I could see that case change but not the smaller one. But if that is the fix well I'll run with it and use the execution highlight to see the case statement switch.
Thanks Again.
Gary Tyrna

Using null in CASE statements

Hi,
I have query with a case statement as follows:
SELECT * FROM table
WHERE
CASE WHEN :variable like 'A' THEN column END is null
WHEN :variable like 'B' THEN column END is not null;
This works fine when returning "column is null" but not when "column is not null".
Can I use a CASE statement like this?
Thanks
Lucy

My data is too complicated to show, but depending on the value of the bind variable in the statement I want to return all the rows in a query where the data in a particular column is either null or not null.For example, looking at the EMP table, if my bind variable is whether I want to show the top manager or not, if set to 'Yes' I would like to return all rows of the EMP table where mgr is null (i.e. the one row where ename is 'KING'), if it were set to 'No' I would like to return all the rows where mgr is not null (i.e. all the other rows). The difference with my query is that the column contains strings, not numerics.
I've used a CASE statement before where I equate the column to a particular value and that works fine, but I'm not sure how they deal with nulls. I've also tried DECODE and didn't get anywhere with that.
Thanks
Lucy

Pivoting using Model Clause Vs pivoting using Aggregate Fun(Case) statement

Hi,
I just wanted to know which option is better for pivoting the data if the data is like:
Grp1 Grp2 Day_week Sales
1 1 Sun 200
1 1 Mon 100
1 2 Sun 1000
and so on...
The output should be:
Grp1 Grp2 Sun Mon ......
1 1 200 100.....
1 2 1000 NULL....
I have tested the same using sum(decode...) method and also model clause:
select grp1, grp2, sum(decode(day_week,'SUN',sales)) SUNDAY , sum(decode(day_week,'MON',sales)) MONDAY from pivot
group by grp1, grp2
order by grp1, grp2
select grp1, grp2, sun , mon, tue, wed, thr, fri, sat
from pivot
model -- UNIQUE SINGLE REFERENCE
return updated rows
partition by (grp1, grp2)
dimension by ( day_week)
measures( result, 0 mon, 0 tue, 0 wed, 0 thr,0 fri, 0 sat, 0 sun)
RULES upsert
mon[0]= sales['MON'],
tue[0]= sales['TUE'],
wed[0]= sales['WED'],
thr[0]= sales['THR'],
fri[0]= sales['FRI'],
sat[0]= sales['SAT'],
sun[0]= sales['SUN']
) order by grp1, grp2
There are 4K records in the table. The first query is taking app (.125 seconds) and the second query (.230 seconds).
Pls tell how the model clause can give better performance and I want to use it for pivoting in all my APIs.
Regards
Rajiv

> I read somewhere while searching on net.
And now you can't find it anymore? I wouldn't believe anything you read somewhere while searching on net, unless it has some kind of proof attached.
> You pls tell is it so or it depends upon volume of data.
Also i tested on some data and reults were better in
case of using normal startegy rather than model.(case
provided above).
So you have tested it yourself already. The model clause is great in a few cases (string aggregation, calculating values based on calculated values), but this doesn't seem to be one of them. On 11g you might want to consider the PIVOT operator.
Regards,
Rob.

Using a scalar user defined function in a select case statement

I have a simple select statement below and I want to have a case statement for some conditions based on the result of the udf returned value. I then want the returned value from that specific case statement to be returned where i have indicated 'DISPLAY
ZIPCODE' below.
SELECT
   CASE
         WHEN (SELECT Top 1 ZipCode FROM ufn_GetAddressByBusinessEntityIDandAddressTypeID(table1.BusinessEntityID,712) IS NOT NULL THEN 'DISPLAY ZIPCODE'
         WHEN (SELECT Top 1 ZipCode FROM ufn_GetAddressByBusinessEntityIDandAddressTypeID(table1.BusinessEntityID,714) as r) IS NOT NULL THEN 'DISPLAY ZIPCODE'
         ELSE NULL
       END as Zipcode,
FROM
table1

SELECT COALESCE(ufn_GetAddressByBusinessEntityIDandAddressTypeID(table1.BusinessEntityID,712),ufn_GetAddressByBusinessEntityIDandAddressTypeID(table1.BusinessEntityID,712)) AS Zipcode
FROM table1
Nope. This is two function calls. coalesce(a, b, c, ...) is just syntatic sugar for
   CASE WHEN a IS NOT NULL THEN a
WHEN b IS NOT NULL THEN b
WHEN c IS NOT NULL THEN c
   END
But if you use isnull it's a different matter. (But isnull() permits two arguments.)
Erland Sommarskog, SQL Server MVP, [email protected]

Query Tuning - using CASE statement in the WHERE clause

Hi All,
My query has been modified to use a CASE statement in the WHERE clause to consider data from certain columns based on a parameter value. This modified query is doing a full table scan and running endlessly. Please suggest what may be done to improve its performance:
Query:
SELECT LAST_DAY(TRUNC(TO_TIMESTAMP(os.requestdatetime, 'yyyymmddhh24:mi:ss.ff4'))) AS summary_date,
os.acctnum,
os.avieworigin_refid,
COUNT(1) cnt_articleview,
SUM(NVL(autocompletedterm,0)) cnt_autocompletedterm
FROM TABLE1 os
WHERE os.acctnum IS NOT NULL
AND os.avieworigin_refid IS NOT NULL
AND os.requestdatetime IS NOT NULL
AND UPPER(os.success_ind) = 'S'
AND CASE WHEN
Param_ValueToCheck = 'FULL' AND get_date_timestamp(os.requestdatetime) BETWEEN
TO_DATE('01-MAY-2011 00:00:00','DD-MON-YYYY HH24:MI:SS') AND
TO_DATE('31-MAY-2011 00:00:00','DD-MON-YYYY HH24:MI:SS')
THEN 1
WHEN
Param_ValueToCheck = 'INCR' AND os.entry_createddate BETWEEN
TO_DATE('01-MAY-2011 00:00:00','DD-MON-YYYY HH24:MI:SS') AND
TO_DATE('31-MAY-2011 00:00:00','DD-MON-YYYY HH24:MI:SS')
THEN 1
END = 1
AND CASE WHEN
Param_ValueToCheck = 'FULL' AND os.entry_CreatedDate BETWEEN
TO_DATE('01-APR-2011 00:00:00','DD-MON-YYYY HH24:MI:SS') AND
TO_DATE('07-JUN-2011 00:00:00','DD-MON-YYYY HH24:MI:SS')
THEN 1
WHEN
Param_ValueToCheck = 'INCR' THEN 1
END = 1
GROUP BY LAST_DAY(TRUNC(TO_TIMESTAMP(os.requestdatetime, 'yyyymmddhh24:mi:ss.ff4'))), os.acctnum,os.avieworigin_refid;Table Description:
(Number of rows : approx > 600,000,000)
Name                           Null     Type
ARTICLEID                      NOT NULL NUMBER(20)
USERKEY                                 NUMBER(10)
AVIEWORIGIN_REFID                       VARCHAR2(10)
SUCCESS_IND                             VARCHAR2(2)
ENTRY_CREATEDDATE                       DATE
CREATED_BY                              VARCHAR2(10)
FILENUMBER                              NUMBER(10)
LINENUMBER                              NUMBER(10)
ACCTNUM                                 VARCHAR2(10)
AUTOCOMPLETEDTERM                       NUMBER(2)
REQUESTDATETIME                         VARCHAR2(19)Explain Plan
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 2224314832
| Id | Operation            | Name              | Rows | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |
|   0 | SELECT STATEMENT     |                   |   590 | 33040 | 2501K (1)| 08:20:15 |       |       |
|   1 | HASH GROUP BY       |                   |   590 | 33040 | 2501K (1)| 08:20:15 |       |       |
|   2 |   PARTITION RANGE ALL|                   |   590 | 33040 | 2501K (1)| 08:20:15 |     1 |1048575|
|* 3 |    TABLE ACCESS FULL | TABLE1 |   590 | 33040 | 2501K (1)| 08:20:15 |     1 |1048575|
PLAN_TABLE_OUTPUT
Predicate Information (identified by operation id):
   3 - filter(UPPER("OS"."SUCCESS_IND")='S' AND CASE WHEN ('FULL'='FULL' AND
              "OS"."ENTRY_CREATEDDATE">=TO_DATE(' 2011-04-01 00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND
              "OS"."ENTRY_CREATEDDATE"<=TO_DATE(' 2011-06-07 00:00:00', 'syyyy-mm-dd hh24:mi:ss')) THEN 1 WHEN
              'FULL'='INCR' THEN 1 END =1 AND "OS"."REQUESTDATETIME" IS NOT NULL AND CASE WHEN ('FULL'='FULL'
              AND "ODS"."GET_DATE_TIMESTAMP"("REQUESTDATETIME")>=TO_DATE(' 2011-05-01 00:00:00', 'syyyy-mm-dd
              hh24:mi:ss') AND "ODS"."GET_DATE_TIMESTAMP"("REQUESTDATETIME")<=TO_DATE(' 2011-05-31 00:00:00',
              'syyyy-mm-dd hh24:mi:ss')) THEN 1 WHEN ('FULL'='INCR' AND "OS"."ENTRY_CREATEDDATE">=TO_DATE('
              2011-05-01 00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND "OS"."ENTRY_CREATEDDATE"<=TO_DATE('
PLAN_TABLE_OUTPUT
              2011-05-31 00:00:00', 'syyyy-mm-dd hh24:mi:ss')) THEN 1 END =1 AND "OS"."ACCTNUM" IS NOT NULL AND
              "OS"."AVIEWORIGIN_REFID" IS NOT NULL)Edited by: Chaitanya on Jun 9, 2011 2:44 AM
Edited by: Chaitanya on Jun 9, 2011 2:47 AM

Hi Dom,
Modified Query:
SELECT LAST_DAY(TRUNC(TO_TIMESTAMP(os.requestdatetime, 'yyyymmddhh24:mi:ss.ff4'))) AS summary_date,
os.acctnum,
os.avieworigin_refid,
COUNT(1) cnt_articleview,
SUM(NVL(autocompletedterm,0)) cnt_autocompletedterm
FROM TABLE1 os
WHERE os.acctnum IS NOT NULL
AND os.avieworigin_refid IS NOT NULL
AND os.requestdatetime IS NOT NULL
AND UPPER(os.success_ind) = 'S'
AND (('FULL' = 'FULL'
AND (get_date_timestamp(os.requestdatetime) BETWEEN TO_DATE('01-MAY-2011 00:00:00','DD-MON-YYYY HH24:MI:SS')
               AND TO_DATE('31-MAY-2011 00:00:00','DD-MON-YYYY HH24:MI:SS')
AND   os.entry_CreatedDate BETWEEN TO_DATE('01-APR-2011 00:00:00','DD-MON-YYYY HH24:MI:SS')
               AND TO_DATE('07-JUN-2011 00:00:00','DD-MON-YYYY HH24:MI:SS')
OR ('FULL' = 'INCR'
AND os.entry_createddate BETWEEN TO_DATE('01-MAY-2011 00:00:00','DD-MON-YYYY HH24:MI:SS')
               AND TO_DATE('31-MAY-2011 00:00:00','DD-MON-YYYY HH24:MI:SS') ))
GROUP BY LAST_DAY(TRUNC(TO_TIMESTAMP(os.requestdatetime, 'yyyymmddhh24:mi:ss.ff4'))), os.acctnum,os.avieworigin_refid;Execute Plan:
PLAN_TABLE_OUTPUT
Plan hash value: 3615447714
| Id | Operation                 | Name              | Rows | Bytes |TempSpc| Cost (%CPU)| Time     | Pstart| Pstop |
|   0 | SELECT STATEMENT          |                   | 25125 | 1374K|       |   407K (1)| 01:21:36 |       |       |
|   1 | HASH GROUP BY            |                   | 25125 | 1374K| 3768K|   407K (1)| 01:21:36 |       |       |
|   2 |   PARTITION RANGE ITERATOR|                   | 25125 | 1374K|       |   407K (1)| 01:21:32 |    29 |    31 |
|* 3 |    TABLE ACCESS FULL      | TABLE1 | 25125 | 1374K|       |   407K (1)| 01:21:32 |    29 |    31 |
PLAN_TABLE_OUTPUT
Predicate Information (identified by operation id):
   3 - filter("OS"."ENTRY_CREATEDDATE">=TO_DATE(' 2011-04-01 00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND
              UPPER("OS"."SUCCESS_IND")='S' AND "OS"."REQUESTDATETIME" IS NOT NULL AND
              "ODS"."GET_DATE_TIMESTAMP"("REQUESTDATETIME")>=TO_DATE(' 2011-05-01 00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND
              "ODS"."GET_DATE_TIMESTAMP"("REQUESTDATETIME")<=TO_DATE(' 2011-05-31 00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND
              "OS"."ACCTNUM" IS NOT NULL AND "OS"."AVIEWORIGIN_REFID" IS NOT NULL AND "OS"."ENTRY_CREATEDDATE"<=TO_DATE('
              2011-06-07 00:00:00', 'syyyy-mm-dd hh24:mi:ss'))Edited by: Chaitanya on Jun 9, 2011 4:51 AM

[Oracle 8i] Handling null in case statement

The following bit of my query is causing the error 'inconsistent datatypes':
CASE
     WHEN b.days_diff < 0
     THEN plan_start
     ELSE plan_start + b.days_diff
ENDThe problem is that b.days_diff can be null.
I've tried to work around this, by using the NVL statement and by nesting 2 case statements to try to deal with the null, but can't seem to work around it.
Does anyone have anything else I can try?

Apologies...internet server went down yesterday...
I've had this issue before with my database. When I look at user_tab_columns, it says plan_start is a date. However, I have had to use TO_DATE in the past with it to get some things to work. It's very odd, and I have no idea why it's like that.
Anyway, below, I have provided some sample data, and the full query I'm trying to run:
CREATE TABLE     ord (
ord_nbr          char(10)
ord_stat     char(2)
INSERT INTO     ord
VALUES          ('0000012345', 'OP');
INSERT INTO     ord
VALUES          ('0000012346', 'OP');
INSERT INTO     ord
VALUES          ('0000012347', 'CL');
INSERT INTO     ord
VALUES          ('0000012348', 'OP');
CREATE TABLE     op (
ord_nbr          char(10)
operation     char(4)
op_status     char(2)
plan_start     date
pln_due          date
dt_complete     date
INSERT INTO     op
VALUES          ('0000012345', '0001', 'CL', {ts '2009-01-01 00:00:00'}, {ts '2009-01-02 00:00:00'}, {ts '2009-01-04 00:00:00'});
INSERT INTO     op
VALUES          ('0000012345', '0002', 'CL', {ts '2009-01-02 00:00:00'}, {ts '2009-01-03 00:00:00'}, {ts '2009-01-06 00:00:00'});
INSERT INTO     op
VALUES          ('0000012345', '0003', 'CL', {ts '2009-01-03 00:00:00'}, {ts '2009-01-04 00:00:00'}, {ts '2009-01-09 00:00:00'});
INSERT INTO     op
VALUES          ('0000012345', '0004', 'WK', {ts '2009-01-04 00:00:00'}, {ts '2009-01-05 00:00:00'}, {ts '1900-12-31 00:00:00'});
INSERT INTO     op
VALUES          ('0000012345', '0005', 'OP', {ts '2009-01-05 00:00:00'}, {ts '2009-01-06 00:00:00'}, {ts '2009-01-02 00:00:00'});
INSERT INTO     op
VALUES          ('0000012346', '0001', 'CL', {ts '2009-01-01 00:00:00'}, {ts '2009-01-02 00:00:00'}, {ts '2009-01-01 00:00:00'});
INSERT INTO     op
VALUES          ('0000012346', '0002', 'OP', {ts '2009-01-02 00:00:00'}, {ts '2009-01-04 00:00:00'}, {ts '1900-12-31 00:00:00'});
INSERT INTO     op
VALUES          ('0000012346', '0003', 'OP', {ts '2009-01-04 00:00:00'}, {ts '2009-01-06 00:00:00'}, {ts '1900-12-31 00:00:00'});
INSERT INTO     op
VALUES          ('0000012347', '0001', 'CL', {ts '2009-01-01 00:00:00'}, {ts '2009-01-02 00:00:00'}, {ts '2009-01-03 00:00:00'});
INSERT INTO     op
VALUES          ('0000012347', '0002', 'CL', {ts '2009-01-02 00:00:00'}, {ts '2009-01-05 00:00:00'}, {ts '2009-01-06 00:00:00'});
INSERT INTO     op
VALUES          ('0000012348', '0001', 'OP', {ts '2009-01-15 00:00:00'}, {ts '2009-01-17 00:00:00'}, {ts '1900-12-31 00:00:00'});
INSERT INTO     op
VALUES          ('0000012348', '0002', 'OP', {ts '2009-01-17 00:00:00'}, {ts '2009-01-20 00:00:00'}, {ts '1900-12-31 00:00:00'});Full query:
SELECT     ord.ord_nbr
,     ord.ord_stat
,     op.operation
,     op.op_status
,     op.plan_start
,     //where I want to return plan_start + days_diff if days_diff is not null or negative
     //otherwise, I want to return just plan_start
     AS adjusted_start
,     op.dt_complete
,     b.max_cl_op
,     b.pln_due
,     b.dt_complete
,     b.days_diff
FROM     ord
,     op
     SELECT     a.ord_nbr
     ,     a.max_cl_op
     ,     op.pln_due
     ,     op.dt_complete
     ,     (op.dt_complete-op.pln_due)     AS days_diff
     FROM     (
          SELECT          op.ord_nbr
          ,          MAX(TO_NUMBER(op.operation))     AS max_cl_op
          FROM          ord
          ,          op
          WHERE          ord.ord_nbr     = op.ord_nbr
          AND          ord.ord_stat     != 'CL'
          AND          op.op_status     ='CL'
          GROUP BY     op.ord_nbr
          ) a
     WHERE     op.ord_nbr     = a.ord_nbr
     AND     op.operation     = a.max_cl_op
     ) b
WHERE     ord.ord_nbr     = op.ord_nbr
AND     op.ord_nbr     = b.ord_nbr (+)
AND     ord.ord_stat     != 'CL'
AND     op.op_status     != 'CL'
AND     op.plan_start     <= ADD_MONTHS(sysdate, 12)The results I want to get:
ord.ord_nbr     ord.ord_stat     op.operation     op.op_status     op.plan_start     adjusted_start     op.dt_complete     b.max_cl_op     b.pln_due     b.dt_complete     b.days_diff
'0000012345'     'OP'          '0004'          'WK'          1/4/2009     1/9/2009     12/31/1900     '0003'          1/4/2009     1/9/2009     5
'0000012345'     'OP'          '0005'          'OP'          1/5/2009     1/10/2009     12/31/1900     '0003'          1/4/2009     1/9/2009     5
'0000012346'     'OP'          '0002'          'OP'          1/2/2009     1/2/2009     12/31/1900     '0001'          1/2/2009     1/1/2009     -1
'0000012346'     'OP'          '0003'          'OP'          1/4/2009     1/4/2009     12/31/1900     '0001'          1/2/2009     1/1/2009     -1
'0000012348'     'OP'          '0001'          'OP'          1/15/2009     1/15/2009     12/31/1900
'0000012348'     'OP'          '0002'          'OP'          1/17/2009     1/17/2009     12/31/1900

Need help in this query using Case Statement

I have the following query which is currently existing and I am adding few more conditions based on the new requirements which is based on a particular flag set as 1 or 0.
If it is set to 1 then I should use the old query as it is and if it is set to 0 then I should add the new conditions.
Basically when the flag is set to 0, I shouldnt be including some of the records that already exists and should include only new records. This is based on the plan_type_ids in (1,2,3,4).
Hence I am using the Case statement to check if the plan_type_id is in (1,2) then do a set of not exists and if the plan_type_id in (3,4) then do set of not exists.
But when I run this query it is giving me error. What am I doing wrong?
Is there any other simple way to combine all the not exists for all of those select statements as given after the line ------------------------- into a single one?
What am I doing wrong?
I tried putting the NOT EXists before the case too but that too didnt work.
Please help. Appreciate it.
Thank you in advance.
SELECT
ee.employee_id
,'WELCOMEMSG'
,DECODE( me.member_enrollment_id
,first_enr.enrollment_id
,20
,23
) status_id
,me.member_enrollment_id
,wk.welcome_msg_id
FROM wk
,employees ee
,MEMBER_ENROLLMENTS me
,plans pl
,( SELECT employee_id
,plan_type_id
,start_date
,plan_id
,MIN(MEMBER_ENROLLMENT_ID) member_enrollment_id
FROM ( SELECT me.employee_id
,DECODE(pl.plan_type_id,1,2,pl.plan_type_id) plan_type_id
,pl.start_date
,wk.plan_id
,me.member_enrollment_id
FROM wk
,PLANS pl
,MEMBER_ENROLLMENTS me
WHERE wk.done_by = nvl('TEST' ,wk.done_by)
AND wk.welcome_msg_name <> 'NONE'
AND pl.employer_id = wk.employer_id
AND wk.employer_id = 5
AND DECODE(pl.plan_type_id,1,2,pl.plan_type_id) = wk.plan_type_id
AND pl.plan_id = NVL(wk.plan_id,pl.plan_id)
AND me.plan_id = pl.plan_id
AND me.coverage_effective_date <> NVL(me.coverage_end_Date, me.coverage_effective_date + 1)
AND me.coverage_effective_Date BETWEEN wk.start_date AND NVL(wk.end_date, me.coverage_effective_date + 1)
MINUS
SELECT me.employee_id
,DECODE(pl.plan_type_id,1,2,pl.plan_type_id) plan_type_id
,pl.start_date
,NULL plan_id
,me.member_enrollment_id
FROM wk
,PLANS pl
,MEMBER_ENROLLMENTS me
WHERE wk.done_by = nvl(NULL,wk.done_by)
AND wk.welcome_msg_name <> 'NONE'
AND pl.employer_id = wk.employer_id
AND wk.employer_id = 5
AND DECODE(pl.plan_type_id,1,2,pl.plan_type_id) = wk.plan_type_id
AND pl.plan_id = wk.plan_id
AND me.plan_id = pl.plan_id
AND me.coverage_effective_date <> NVL(me.coverage_end_Date, me.coverage_effective_date + 1)
AND me.coverage_effective_Date BETWEEN wk.start_date AND NVL(wk.end_date, me.coverage_effective_date + 1)
WHERE employee_id = 100
GROUP BY employee_id ,plan_type_id,start_date ,plan_id
)first_enr
,MEMBER_EVENTS mv
WHERE wk.done_by = nvl(NULL,wk.done_by)
AND wk.employer_id = ee.employer_id
AND ee.employee_id = me.employee_id
AND ee.employee_id = 100
AND me.plan_id = pl.plan_id
AND me.coverage_effective_date <> NVL(me.coverage_end_Date, me.coverage_effective_date + 1)
AND me.coverage_effective_Date BETWEEN wk.start_date AND NVL(wk.end_date, me.coverage_effective_date + 1)
AND is_expired(me.employee_id,me.plan_id) = 'Y'
AND DECODE(pl.plan_type_id,1,2,pl.plan_type_id) = wk.plan_type_id
AND pl.plan_id=nvl(wk.plan_id,pl.plan_id)
AND me.employee_id = first_enr.employee_id
AND DECODE(pl.plan_type_id,1,2,pl.plan_type_id) = first_enr.plan_type_id
AND pl.start_date = first_enr.start_date
AND me.member_enrollment_id = mv.member_enrollment_id (+)
AND 'WELCOMEMSG' = mv.event_name(+)
AND mv.member_enrollment_id IS NULL
AND wk.welcome_msg_name <> 'NONE'
AND NVL(first_enr.plan_id,0) = NVL( wk.plan_id,0)
AND (FN_get_all_participant(wk.employer_id) = 1
OR
(FN_get_all_participant(wk.employer_id) = 0
AND (CASE WHEN pl.plan_type_id IN (1,2)
THEN NOT EXISTS (SELECT 'X'
FROM member_accounts ma
member_enrollments men3
plans pl3
plan_types pt3
WHERE ma.member_account_id = men3.member_account_id
AND ma.employee_id = me.employee_id
AND ma.plan_id = pl3.plan_id
AND pl3.start_date < pl.START_DATE
AND TRUNC(men3.coverage_effective_date) <> TRUNC(NVL(men3.coverage_end_date, men3.coverage_effective_date + 1 ))
AND pl3.plan_type_id = pt3.plan_type_id
AND pt3.plan_type_id in (1, 2)
UNION
(SELECT 'X'
FROM member_accounts ma
member_enrollments men3
plans pl3
plan_types pt3
WHERE ma.member_account_id = men3.member_account_id
AND ma.employee_id = me.employee_id
AND ma.plan_id = pl3.plan_id
AND pl3.start_date = (pl.start_date - 365)
\ AND TRUNC(men3.coverage_effective_date) <> TRUNC(NVL(men3.coverage_end_date, men3.coverage_effective_date + 1 ))
AND pl3.plan_type_id = pt3.plan_type_id
AND pt3.plan_type_id = wk.plan_type_id
UNION
(SELECT 'X'
FROM member_accounts ma
member_enrollments men3
plans pl3
plan_types pt3
WHERE ma.member_account_id = men3.member_account_id
AND ma.employee_id = men2.employee_id
AND ma.plan_id = pl3.plan_id
AND pl3.start_date < pl2.START_DATE -- '01-Jan-2011'
AND TRUNC(men3.coverage_effective_date) <> TRUNC(NVL(men3.coverage_end_date, men3.coverage_effective_date + 1 ))
AND pl3.plan_type_id = pt3.plan_type_id
AND pt3.plan_type_id = 2
UNION
(SELECT 'X'
FROM member_accounts ma
member_enrollments men3
plans pl3
plan_types pt3
WHERE ma.member_account_id = men3.member_account_id
AND ma.employee_id = men2.employee_id
AND ma.plan_id = pl3.plan_id
AND pl3.start_date < pl2.START_DATE -- '01-Jan-2011'
AND TRUNC(men3.coverage_effective_date) <> TRUNC(NVL(men3.coverage_end_date, men3.coverage_effective_date + 1 ))
AND pl3.plan_type_id = pt3.plan_type_id
AND pt3.plan_type_id = 1
WHEN pl.plan_type_id IN (3, 4)
THEN NOT EXISTS (SELECT 'X'
FROM member_accounts ma
member_enrollments men3
plans pl3
plan_types pt3
WHERE ma.member_account_id = men3.member_account_id
AND ma.employee_id = men2.employee_id
AND nvl(ma.account_end_date, sysdate) <= trunc(sysdate)
AND ma.plan_id = pl3.plan_id
AND pl3.start_date <= pl2.START_DATE
AND TRUNC(men3.coverage_effective_date) <> TRUNC(NVL(men3.coverage_end_date, men3.coverage_effective_date + 1 ))
AND pl3.plan_type_id = pt3.plan_type_id
AND pt3.plan_type_id in (3, 4)
END
AND (CASE WHEN pl.plan_type_id IN (1,2)
ERROR at line 89:
ORA-00936: missing expression

Maybe
SELECT ee.employee_id,
       'WELCOMEMSG',
       DECODE(me.member_enrollment_id,first_enr.enrollment_id,20,23) status_id,
       me.member_enrollment_id,
       wk.welcome_msg_id
FROM wk,
       employees ee,
       MEMBER_ENROLLMENTS me,
       plans pl,
       (SELECT employee_id,
               plan_type_id,
               start_date,
               plan_id,
               MIN(MEMBER_ENROLLMENT_ID) member_enrollment_id
          FROM (SELECT me.employee_id,
                       DECODE(pl.plan_type_id,1,2,pl.plan_type_id) plan_type_id,
                       pl.start_date,
                       wk.plan_id,
                       me.member_enrollment_id
                  FROM wk,
                       PLANS pl,
                       MEMBER_ENROLLMENTS me
                 WHERE wk.done_by = nvl('TEST',wk.done_by) /* same as wk.done_by = 'TEST' */
                   AND wk.welcome_msg_name 'NONE'
                   AND pl.employer_id = wk.employer_id
                   AND wk.employer_id = 5
                   AND DECODE(pl.plan_type_id,1,2,pl.plan_type_id) = wk.plan_type_id
                   AND pl.plan_id = NVL(wk.plan_id,pl.plan_id)
                   AND me.plan_id = pl.plan_id
                   AND me.coverage_effective_date != NVL(me.coverage_end_Date,me.coverage_effective_date + 1)
                   AND me.coverage_effective_Date BETWEEN wk.start_date AND NVL(wk.end_date,me.coverage_effective_date + 1)
                MINUS
                SELECT me.employee_id,
                       DECODE(pl.plan_type_id,1,2,pl.plan_type_id) plan_type_id,
                       pl.start_date,
                       NULL plan_id,
                       me.member_enrollment_id
                  FROM wk,
                       PLANS pl,
                       MEMBER_ENROLLMENTS me
                 WHERE wk.done_by = nvl(NULL,wk.done_by) /* same as 1 = 1 */
                   AND wk.welcome_msg_name 'NONE'
                   AND pl.employer_id = wk.employer_id
                   AND wk.employer_id = 5
                   AND DECODE(pl.plan_type_id,1,2,pl.plan_type_id) = wk.plan_type_id
                   AND pl.plan_id = wk.plan_id
                   AND me.plan_id = pl.plan_id
                   AND me.coverage_effective_date NVL(me.coverage_end_Date,me.coverage_effective_date + 1)
                   AND me.coverage_effective_Date BETWEEN wk.start_date AND NVL(wk.end_date, me.coverage_effective_date + 1)
         WHERE employee_id = 100
         GROUP BY employee_id,
                  plan_type_id,
                  start_date,
                  plan_id
       ) first_enr,
       MEMBER_EVENTS mv
WHERE wk.done_by = nvl(NULL,wk.done_by)
   AND wk.employer_id = ee.employer_id
   AND ee.employee_id = me.employee_id
   AND ee.employee_id = 100
   AND me.plan_id = pl.plan_id
   AND me.coverage_effective_date != NVL(me.coverage_end_Date,me.coverage_effective_date + 1)
   AND me.coverage_effective_Date BETWEEN wk.start_date AND NVL(wk.end_date, me.coverage_effective_date + 1)
   AND is_expired(me.employee_id,me.plan_id) = 'Y'
   AND DECODE(pl.plan_type_id,1,2,pl.plan_type_id) = wk.plan_type_id
   AND pl.plan_id = nvl(wk.plan_id,pl.plan_id)
   AND me.employee_id = first_enr.employee_id
   AND DECODE(pl.plan_type_id,1,2,pl.plan_type_id) = first_enr.plan_type_id
   AND pl.start_date = first_enr.start_date
   AND me.member_enrollment_id = mv.member_enrollment_id(+)
   AND 'WELCOMEMSG' = mv.event_name(+)
   AND mv.member_enrollment_id IS NULL
   AND wk.welcome_msg_name != 'NONE'
   AND NVL(first_enr.plan_id,0) = NVL(wk.plan_id,0)
   AND (
        FN_get_all_participant(wk.employer_id) = 1
    OR
        (FN_get_all_participant(wk.employer_id) = 0
   AND   NOT EXISTS(SELECT 'X'
                      FROM member_accounts ma,
                           member_enrollments men3,
                           plans pl3,
                           plan_types pt3
                     WHERE ma.member_account_id = men3.member_account_id
                       AND ma.employee_id = me.employee_id
                       AND ma.plan_id = pl3.plan_id
                       AND pl3.start_date < pl.START_DATE
                       AND TRUNC(men3.coverage_effective_date) != TRUNC(NVL(men3.coverage_end_date,men3.coverage_effective_date + 1))
                       AND pl3.plan_type_id = pt3.plan_type_id
                       AND pt3.plan_type_id in (1,2)
                       and pl.plan_type_id IN (1,2)
                    UNION
                    SELECT 'X'
                      FROM member_accounts ma,
                           member_enrollments men3,
                           plans pl3,
                           plan_types pt3
                     WHERE ma.member_account_id = men3.member_account_id
                       AND ma.employee_id = me.employee_id
                       AND ma.plan_id = pl3.plan_id
                       AND pl3.start_date = (pl.start_date - 365)
                       AND TRUNC(men3.coverage_effective_date) != TRUNC(NVL(men3.coverage_end_date,men3.coverage_effective_date + 1))
                       AND pl3.plan_type_id = pt3.plan_type_id
                       AND pt3.plan_type_id = wk.plan_type_id
                       and pl.plan_type_id IN (1,2)
                    UNION
                    SELECT 'X'
                      FROM member_accounts ma,
                           member_enrollments men3,
                           plans pl3,
                           plan_types pt3
                     WHERE ma.member_account_id = men3.member_account_id
                       AND ma.employee_id = men2.employee_id
                       AND ma.plan_id = pl3.plan_id
                       AND pl3.start_date < pl2.START_DATE -- '01-Jan-2011'
                       AND TRUNC(men3.coverage_effective_date) != TRUNC(NVL(men3.coverage_end_date,men3.coverage_effective_date + 1))
                       AND pl3.plan_type_id = pt3.plan_type_id
                       AND pt3.plan_type_id = (1,2)
                       and pl.plan_type_id IN (1,2)
                    UNION
                    SELECT 'X'
                      FROM member_accounts ma,
                           member_enrollments men3,
                           plans pl3,
                           plan_types pt3
                     WHERE ma.member_account_id = men3.member_account_id
                       AND ma.employee_id = men2.employee_id
                       AND trunc(nvl(ma.account_end_date,sysdate)) <= trunc(sysdate)
                       AND ma.plan_id = pl3.plan_id
                       AND pl3.start_date <= pl2.START_DATE
                       AND TRUNC(men3.coverage_effective_date) != TRUNC(NVL(men3.coverage_end_date,men3.coverage_effective_date + 1))
                       AND pl3.plan_type_id = pt3.plan_type_id
                       AND pt3.plan_type_id in (3,4)
                       and pl.plan_type_id IN (3,4)
       )Regards
Etbin

Using NOT comparison in SQL with Intermedia

Ok, I have an issue where I am trying to create a search engine the most efficient way. I am using Oracle 8.1.7 and Java. I can't always use the Intermedia ~ as there has to be a comparison.
Basically, there are cases when the not can be chosen and the criteria are from different zones in the index. For example if choose a type of Title and value of The Stand and type Author not Stephen King. The following is not valid, as Title is WITHIN TITLE and Author is WITHIN CTBR. And no I can't add one to the other zone.
select ttl_id from table where CONTAINS(KYWD, '(${The}) & (${Stand}) WITHIN TITLE AND ((${The}) & (${Stand})) ~ ((${Stephen}) & {${King})) WITHIN CTBR') > 0
This will not work properly as The Stand is not present in CTBR. So the alternative so far is this:
select ttl_id from table where CONTAINS(KYWD, '(${The}) & (${Stand}) WITHIN TITLE') > 0 AND ttl_id NOT IN (Select ttl_id from table where CONTAINS(KYWD, '((${Stephen}) & {${King})) WITHIN CTBR') > 0)
This is not the prefered option as the full table search that may be repeated in this query if all 5 nots are chosen with different criteria. This as you can imagine is to slow. So any ideas would be helpful.
Thanks

Hi Eric -
I'd recommend that you post this question to the Intermedia/Text forum. While we all love Java here, our knowledge of Intermedia is likely to not be as good as the guru's of the Text/Intermedia world.
The Intermedia/Text forum can be located at
Text

Problem in using aggregate functions inside case statement

Hi All,
I am facing problem while using aggregate functions inside case statement.
CASE WHEN PSTYPE='S' THEN MAX(DECODE(POS.PBS,1,ABS(POS.PPRTQ),0)) ELSE SUM(DECODE(POS.PBS,1,ABS(POS.PPRTQ),0)) END,
how can I achieve above requirement ? Con anyone help me.
Thanks and Regards
DG

Hi All,
Below is my query:
        SELECT
        CASE WHEN p_reportid IN ('POS_RV_SN','POS_PB') THEN POS.PACCT
        ELSE POS.PACCT || '-' || DECODE(POS.SYSTEMCODE,'GMI1','1', 'GMI2','2', 'GMI3','4', 'GMI4','3', '0') ||POS.PFIRM|| NVL(POS.POFFIC,'000') END,
        CASE WHEN p_reportid IN ('POS_RV_SN','POS_PB') THEN POS.PACCT||POS.PCUSIP||DECODE(POS.PBS,1,'+',2,'-')
        ELSE POS.PFIRM||POS.POFFIC||POS.PACCT||POS.PCUSIP||DECODE(POS.PBS,1,'+',2,'-') END,POS.SYSTEMCODE,CASE WHEN POS.PSTYPE='S' THEN POS.PSYMBL ELSE POS.PFC END,POS.PEXCH||DECODE(POS.PSUBEX,'<NULL>',''),
        POS.PCURSY,
        CASE WHEN POS.PSBCUS IS NULL THEN SUBSTR(POS.PCTYM,5,2) || SUBSTR(POS.PCTYM,1,4) ELSE POS.PSBCUS || SUBSTR(POS.PCTYM,5,2) || SUBSTR(POS.PCTYM,1,4) END ,
        NVL(POS.PSUBTY,'F') ,POS.PSTRIK,*SUM(DECODE(POS.PBS,1,ABS(POS.PPRTQ),0)) ,SUM(DECODE(POS.PBS,2,ABS(POS.PPRTQ),0))* ,
        POS.PCLOSE,SUM(POS.PMKVAL) ,
        TO_CHAR(CASE WHEN INSTR(POS.PUNDCP,'.') > 0 OR LENGTH(POS.PUNDCP) < 15 THEN POS.PUNDCP ELSE TO_CHAR(TO_NUMBER(POS.PUNDCP) / 100000000) END),
        POS.UBS_ID,POS.BBG_EXCHANGE_CODE,POS.BBG_TICKER ,POS.BBG_YELLOW_KEY,POS.PPCNTY,POS.PMULTF,TO_CHAR(POS.BUSINESS_DATE,'YYYYMMDD'),
        POS.SOURCE_GMI_LIB,
        --DECODE(POS.SYSTEMCODE,'GMI1','euro','GMI2','namr','GMI3','aust','GMI4','asia','POWERBASE','aust','SINACOR','namr',POS.SYSTEMCODE),
        DECODE(p_reportid,'RVPOS_SING','euro','RVPOS_AUSTDOM','aust','RVPOS_AUSTEOD','euro','RVPOS_GLBLAPAC','asia','POS_RV_SN','namr','POS_PB','aust',POS.SYSTEMCODE),
        POS.RIC,
        CASE WHEN PSUBTY = 'S' THEN POS.TYPE ELSE NULL END,
        DECODE(POS.UBS_ID,NULL,POS.PCUSP2,POS.ISIN),POS.UNDERLYING_BBG_TICKER,POS.UNDERLYING_BBG_EXCHANGE,POS.PRODUCT_CLASSIFICATION,
        CASE WHEN PSUBTY = 'S' THEN POS.PSDSC2 ELSE NULL END,
        CASE WHEN PSUBTY = 'S' THEN C.SSDSC3 ELSE NULL END,
        NVL(C.SSECID,POS.PCUSIP),
        NULL,
        POS.PYSTMV,
        POS.PMINIT,
        POS.PEXPDT,
        CASE WHEN POS.PSUBTY='S' THEN SUBSTR(C.ZDATA2,77,1) ELSE NULL END,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL
        FROM POSITIONS_WRK POS LEFT OUTER JOIN
        (SELECT * FROM CDS_PRODUCTS CP INNER JOIN FUTURE_MASTER FM ON
        (CP.STRXCH=FM.ZEXCH AND CP.SFC=FM.ZFC AND CP.BUSINESS_DATE = FM.BUSINESS_DATE )) C ON POS.PCUSIP = C.SCUSIP
        AND NVL(POS.PCUSP2,'X') = NVL(C.SCUSP2,'X')
        WHERE
        POS.PEXCH NOT IN ('A1','A2','A3','B1','B3','C2','D1','H1','K1','L1','M1','M3','P1','S1')
        AND (POS.PSBCUS IS NOT NULL OR POS.PCTYM IS NOT NULL OR POS.PSTYPE ='S')
        AND POS.BUSINESS_DATE = run_date_char
        GROUP BY
        POS.UBS_ID,POS.SYSTEMCODE,POS.RECIPIENTCODE,POS.BUSINESS_DATE,POS.PACCT,POS.PFIRM,POS.POFFIC,POS.PCUSIP,POS.PBS,CASE WHEN POS.PSTYPE='S' THEN POS.PSYMBL ELSE POS.PFC END,
        POS.PEXCH,POS.PSUBEX,POS.PCURSY,
        CASE WHEN POS.PSBCUS IS NULL THEN SUBSTR(POS.PCTYM,5,2) || SUBSTR(POS.PCTYM,1,4) ELSE POS.PSBCUS || SUBSTR(POS.PCTYM,5,2) || SUBSTR(POS.PCTYM,1,4) END,
        NVL(POS.PSUBTY,'F') ,POS.PSTRIK,POS.PCLOSE,TO_CHAR(CASE WHEN INSTR(POS.PUNDCP,'.') > 0 OR LENGTH(POS.PUNDCP) < 15 THEN POS.PUNDCP ELSE TO_CHAR(TO_NUMBER(POS.PUNDCP) / 100000000) END),
        POS.BBG_EXCHANGE_CODE,POS.BBG_TICKER,POS.BBG_YELLOW_KEY,POS.PPCNTY,POS.PMULTF,POS.PSUBTY,POS.SOURCE_GMI_LIB,RIC,
        CASE WHEN PSUBTY = 'S' THEN POS.TYPE ELSE NULL END,
        DECODE(POS.UBS_ID,NULL,POS.PCUSP2,POS.ISIN),POS.UNDERLYING_BBG_TICKER,POS.UNDERLYING_BBG_EXCHANGE,POS.PRODUCT_CLASSIFICATION,
        CASE WHEN PSUBTY = 'S' THEN POS.PSDSC2 ELSE NULL END,
        CASE WHEN PSUBTY = 'S' THEN C.SSDSC3 ELSE NULL END,
        NVL(C.SSECID,POS.PCUSIP),
        POS.PYSTMV,
        POS.PMINIT,
        POS.PEXPDT,
        CASE WHEN PSUBTY = 'S' THEN SUBSTR(C.ZDATA2,77,1) ELSE NULL END;Now, could you plz help me in replacing the bold text in the query with the requirement.
Thanks and Rgds
DG
Edited by: BluShadow on 16-May-2011 09:39
added {noformat}{noformat} tags. Please read: {message:id=9360002} for details on how to post code/data

Using Field/Column Date Value In Case Statement

I have code that the first part works (the part that evaluates null). However, it appears the second part doesn't work. The error I get is:
Data Value out of range
Can you use the a table column value in a Case statement? What I'm trying to do is: where all mbr06..values are 12/31/9999, then null; if mbr06.. values are equal to or less than today's date, then put the value in mbr02.mbr02_cancel_proc_date..
Note, the table MBR02 does have dates that go back as far as 11/17/1858..could that be an issue?
Thanks for any assistance..
            cast((case
            when mbr06.mbr06_exp_date = to_date('31-dec-9999') then null
            when mbr06.mbr06_exp_date <= sysdate then mbr02.mbr02_cancel_proc_date

The error is due to the CAST, not to the CASE.
Cause: Value from cast operand is larger than cast target size.Post at least the whole cast ...
Max
http://oracleitalia.wordpress.com

Using case statement in merge when matched

Hi,
I want to use case statement in the when matched clause of merge statement to ensure that I update only those fields that are undated.
create table TEST1
NAME1 VARCHAR2(25),
NAME2 VARCHAR2(25),
ID NUMBER not null
create table TEST2
ID NUMBER not null,
ID2 NUMBER not null,
NAME1 VARCHAR2(25),
NAME2 VARCHAR2(25)
merge into test1 t1
using
test2 t2
ON (t1.id = t2.id)
when matched
then
case
when t1.name1 != t2.name1
then
update set t1.name1 != t2.name1
when t1.name2 != t2.name2
then
update set t1.name2 != t2.name2
else
null;
end
it does not work and raises invalid sql command. Any idea how can I do that?
Thanks.
Sajid
Edited by: 808255 on Nov 12, 2010 4:22 AM

Hi
In that case you would have to use multiple statements and you may as well just use UPDATE instead of MERGE. Also, are you sure that you aren't trying to to fix a problem that doesn't actually exist.
Think about where the execution time is going to come from...
I would be tempted to do 1 UPDATE like this...
   UPDATE test1 t1
   SET    (t1.name1,
           t1.name2) = (SELECT t2.name1,
                                t2.name2
                        FROM    test2 t2
                        WHERE t1.id = t2.id
                        AND   (t1.name1 != t2.name1
                         OR    t1.name2 != t2.name2))If you get specific performance issue with this, then post an explain plan and trace and I'll have a look.
I don't this the cost of the update is going to be as great as you think.
Cheers
Ben

Using Case statement to insert,update,delete the tables

Hi All,
I have to check the databse ,
if it is developement then
insert/update/delete values in tables;
if it staging then
insert/update/delete values in tables;
if it is production then
insert/update/delete values in tables;
thers is function available to check the current database
For doing the about i am trying to write CASE statement like this
SELECT function,
case
when fun = 'developement' then insert into table1 values ('abcd','1234')
when fun = 'staging' then insert into table1 values ('abcd','1234')
when fun= 'production' then insert into table1 values ('abcd','1234')
else null
from dual
its throughing me an error
please help
Thanks,

Hi,
You can use CASE staement any place where an expression is expected.
For example, in:
UPDATE table_a
SET     col1 = exp1
,       col2 = exp2
WHERE   exp3 = exp4;all the expressions are labled lke expn.
Note that table_a, col1 and col2 are not expressions: you must hard-code these names, or use dynamic SQL.
So it's okay to say:
UPDATE table_a
SET     col1 = CASE
                   WHEN db = 'development' THEN 0
                   WHEN db = 'staging'      THEN 1
               END
,       col2 = CASE
                   WHEN db = 'development' THEN NULL
                   WHEN db = 'staging'      THEN col2
               END
WHERE   db != 'production';In this example:
in the development database, col1 is set to 0 and col2 is set to NULL
in the staging database, col1 is set to 1 and col2 is unchanged (that is, set to what it already was)
in the production database, nothing is changed (the WHERE condition is always FALSE)

Is it possible to use a case statement when joining different tables based on input parameters?

Hi,
I have a scenario where my stored procedure takes 5 parameters and the users can pass NULL or some value to these parameters and based on the parameters, I need to pull data from various tables.
Is it possible to use a case statement in the join, similar the one in the below example. I'm getting error when I use the below type of statement.
select a.*
from a
case
when parameter1=1 then
inner join a on a.id = b.id
when parameter1=2 then
inner join a on a.id = c.id
end;
Please let me know, if this type of statement works, and if it works will it create any performance issues?. If the above doesn't work, could you please give me some alternate solutions?
Thanks.

Here's a technique for joining A to B or C depending on the input parameters. In theory, you are joining to both tables but the execution plan includes filters to skip whichever join is not appropriate. The drawback is that you have to do outer joins, not inner ones.
CREATE TABLE A AS SELECT LEVEL ak FROM dual CONNECT BY LEVEL <= 100;
CREATE TABLE b AS SELECT ak, bk
FROM A, (SELECT LEVEL bk FROM dual CONNECT BY LEVEL <= 10);
CREATE TABLE c(ak, ck) AS SELECT ak, bk*10 FROM b;
variable p1 NUMBER;
variable p2 NUMBER;
exec :p1 := 1;
exec :p2 := 20;
SELECT /*+ gather_plan_statistics */ A.ak, nvl(b.bk, c.ck) otherk FROM A
LEFT JOIN b ON A.ak = b.ak AND :p1 IS NOT NULL AND b.bk = :p1
LEFT JOIN c ON A.ak = c.ak AND :p1 is null and :p2 IS NOT NULL and c.ck = :p2
WHERE A.ak <= 9;
SELECT * FROM TABLE(dbms_xplan.display_cursor(NULL,NULL,'IOSTATS LAST'));
| Id | Operation             | Name            | Starts | E-Rows | A-Rows |   A-Time   | Buffers |
|   0 | SELECT STATEMENT      |                 |      1 |        |      9 |00:00:00.01 |       7 |
|* 1 | HASH JOIN OUTER      |                 |      1 |      9 |      9 |00:00:00.01 |       7 |
|* 2 |   HASH JOIN OUTER     |                 |      1 |      9 |      9 |00:00:00.01 |       7 |
|* 3 |    TABLE ACCESS FULL | A               |      1 |      9 |      9 |00:00:00.01 |       3 |
|   4 |    VIEW               | VW_DCL_5532A50F |      1 |      9 |      9 |00:00:00.01 |       4 |
|* 5 |     FILTER            |                 |      1 |        |      9 |00:00:00.01 |       4 |
|* 6 |      TABLE ACCESS FULL| B               |      1 |      9 |      9 |00:00:00.01 |       4 |
|   7 |   VIEW                | VW_DCL_5532A50F |      1 |      9 |      0 |00:00:00.01 |       0 |
|* 8 |    FILTER             |                 |      1 |        |      0 |00:00:00.01 |       0 |
|* 9 |     TABLE ACCESS FULL | C               |      0 |      9 |      0 |00:00:00.01 |       0 |
Predicate Information (identified by operation id):
   1 - access("A"."AK"="ITEM_0")
   2 - access("A"."AK"="ITEM_1")
   3 - filter("A"."AK"<=9)
5 - filter(:P1 IS NOT NULL)
   6 - filter(("B"."AK"<=9 AND "B"."BK"=:P1))
   8 - filter((:P2 IS NOT NULL AND :P1 IS NULL))
   9 - filter(("C"."AK"<=9 AND "C"."CK"=:P2))
You can see that table C was not really accessed: the buffer count is 0.
exec :p1 := NULL;
SELECT /*+ gather_plan_statistics */ A.ak, nvl(b.bk, c.ck) otherk FROM A
LEFT JOIN b ON A.ak = b.ak AND :p1 IS NOT NULL AND b.bk = :p1
LEFT JOIN c ON A.ak = c.ak AND :p1 is null and :p2 IS NOT NULL and c.ck = :p2
WHERE A.ak <= 9;
SELECT * FROM TABLE(dbms_xplan.display_cursor(NULL,NULL,'IOSTATS LAST'));
Now table B is not accessed.
| Id | Operation             | Name            | Starts | E-Rows | A-Rows |   A-Time   | Buffers | Reads |
|   0 | SELECT STATEMENT      |                 |      1 |        |      9 |00:00:00.02 |       7 |      2 |
|* 1 | HASH JOIN OUTER      |                 |      1 |      9 |      9 |00:00:00.02 |       7 |      2 |
|* 2 |   HASH JOIN OUTER     |                 |      1 |      9 |      9 |00:00:00.01 |       3 |      0 |
|* 3 |    TABLE ACCESS FULL | A               |      1 |      9 |      9 |00:00:00.01 |       3 |      0 |
|   4 |    VIEW               | VW_DCL_5532A50F |      1 |      9 |      0 |00:00:00.01 |       0 |      0 |
|* 5 |     FILTER            |                 |      1 |        |      0 |00:00:00.01 |       0 |      0 |
|* 6 |      TABLE ACCESS FULL| B               |      0 |      9 |      0 |00:00:00.01 |       0 |      0 |
|   7 |   VIEW                | VW_DCL_5532A50F |      1 |      9 |      9 |00:00:00.01 |       4 |      2 |
|* 8 |    FILTER             |                 |      1 |        |      9 |00:00:00.01 |       4 |      2 |
|* 9 |     TABLE ACCESS FULL | C               |      1 |      9 |      9 |00:00:00.01 |       4 |      2 |

Using a comparison to NULL in a CASE statement

Similar Messages

Maybe you are looking for