Query Tuning - using CASE statement in the WHERE clause - Duplicate Post

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Query Tuning - using CASE statement in the WHERE clause
Edited by: Chaitanya on Jun 9, 2011 2:45 AM
Edited by: Chaitanya on Jun 9, 2011 2:46 AM

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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

How do I use the CASE statement in the where clause?

Hello Everyone,
I have 2 queries that do what I need to do but I am trying to learn how to use the CASE statement.
I have tried to combine these 2 into one query using a case statement but don't get the results I need.
Could use some help on how to use the case syntax to get the results needed.
thanks a lot
select segment_name,
product_type,
count (distinct account_id)
FROM NL_ACCT
where
ind = 'N'
and
EM_ind = 'N'
and product_type in ('TAX','PAY')
and acct_open_dt between (cast('2006-01-17' as date)) and (cast('2006-01-17' as date) + 60)
GROUP BY 1,2
order by product_type
select segment_name,
product_type,
count (distinct account_id)
FROM NL_ACCT
where
ind = 'N'
and
EM_ind = 'N'
and product_type not in ('TAX','PAY')
and acct_open_dt between (cast('2006-01-17' as date)) and (cast('2006-01-17' as date) + 30)
group by 1,2
order by product_type

Something like:
SELECT segment_name, product_type,
       SUM(CASE WHEN account_id IN ('TAX','PAY') and
                     acct_open_dt BETWEEN TO_DATE('2006-01-17', 'yyyy-mm-dd') and
                           TO_DATE('2006-01-17', 'yyyy-mm-dd') + 60 THEN 1
                ELSE 0 END) tax_pay,
       SUM(CASE WHEN account_id NOT IN ('TAX','PAY') and
                     acct_open_dt BETWEEN TO_DATE('2006-01-17', 'yyyy-mm-dd') and
                           TO_DATE('2006-01-17', 'yyyy-mm-dd') + 30 THEN 1
                ELSE 0 END) not_tax_pay
FROM NL_ACCT
WHERE ind = 'N' and
      em_ind = 'N' and
      acct_open_dt BETWEEN TO_DATE('2006-01-17', 'yyyy-mm-dd') and
                           TO_DATE('2006-01-17', 'yyyy-mm-dd') + 60
GROUP BY segment_name, product_type
ORDER BY product_typeNote: You cannor GROUP BY 1,2, you need to explicitly name the columns to group by.
HTH
John

Using if logic in the where clause of a select statement

I have a select clause. And in the select clause there is a variable all_off_trt that can be 'Y' or 'N'.
In the where clause I want to make it so that if a form variable is checked and all_off_trt is 'Y' then
exclude it else if the form variable isn't checked then select it no matter what all_off_trt is.
Is there any way to include either and if statement or a case statement within the where clause to acheive this? If not is there another way of doing it?
Basically I am looking for a case statement like this
case
when all_off_trt = 'Y' and mail_para.code = 'Y' then false
else true
end
Message was edited by:
Tugnutt7

Ok, so that really doesn't solve my problem. I have 3 different fields that I need to do that with. Each combining in a select statement to print an email list, as well as other thing limiting the where clause.
This is currently what I have, tested and working 100%.
cursor email_cur is
select unique p.email,s.all_off_trt,s.all_deceased,s.no_enroll
from participant p, trialcom t, ethics s
where p.status='A'
and p.surname=t.surname
and p.initials=t.initials
and s.trial_cd = t.tricom
and s.centre = t.centre
and p.email is not null
and (t.centre in (select code from mail_parameters where user_name=user and mail_para='CENTRE')
or 'XX' in (select code from mail_parameters where user_name=user and mail_para='CENTRE'))
and (t.tricom in (select code from mail_parameters where user_name=user and mail_para='TRIAL')
or 'XX' in (select code from mail_parameters where user_name=user and mail_para='TRIAL'))
and (t.role in (select code from mail_parameters where user_name=user and mail_para='ROLE')
or 'XX' in (select code from mail_parameters where user_name=user and mail_para='ROLE'))
and (p.country in (select code from mail_parameters where user_name=user and mail_para='COUNTRY')
or 'XX' in (select code from mail_parameters where user_name=user and mail_para='COUNTRY'))
and (t.represent in (select code from mail_parameters where user_name=user and mail_para='REPRESENT')
or 'XX' in (select code from mail_parameters where user_name=user and mail_para='REPRESENT'));
This is in a program unit that runs when a button is clicked. At the end of that I need to add on the 3 case statements that help further narrow down the selection of emails to be printed. Then it prints the emails selected from this statement into a file. So it has to be done right in the select statement. The three table variables are the all_off_trt, all_deceased, and no_enroll. The form has 3 checkboxes. One for each, that when checked (giving the variable associated with the checkboxes a value of 'Y') excludes all emails that have a 'Y' in the coresponding table variable.

Need help in this sql query to use Case Statement

hi All,
I have the below query -
SELECT DISTINCT OFFC.PROV_ID
,OFFC.WK_DAY
,CASE
WHEN OFFC.WK_DAY ='MONDAY' THEN 1
WHEN OFFC.WK_DAY ='TUESDAY' THEN 2
WHEN OFFC.WK_DAY ='WEDNESDAY' THEN 3
WHEN OFFC.WK_DAY ='THURSDAY' THEN 4
WHEN OFFC.WK_DAY ='FRIDAY' THEN 5
WHEN OFFC.WK_DAY ='SATURDAY' THEN 6
WHEN OFFC.WK_DAY ='SUNDAY' THEN 7
END AS DOW
,OFFC.OFFC_OPENG_TIME
,OFFC.OFFC_CLSNG_TIME
FROM GGDD.PROV_OFFC_HR OFFC
WHERE OFFC.PROV_ID='0000600'
WITH UR;
this query is bringing results in 6 differnt rows with opening and closing time for each day separately. I want to generate the data in one row with each day having opening and closing time, so for 7 days, total 14 columns with opening and closing time. But i am not able to do that using case statement.
can somebody help me in achieving that.
thanks,
iamhere

Hi,
Welcome to the forum!
That's called a Pivot .
Instead of having 1CASE expression, have 14, one for the opening and one for the closing time each day, and do GROUP BY to combine them onto one row.
SELECT       OFFC.PROV_ID
,       MIN (CASE WHEN OFFC.WK_DAY ='MONDAY'    THEN OFFC.OFFC_OPENG_TIME END)     AS mon_opn
,       MIN (CASE WHEN OFFC.WK_DAY ='MONDAY'    THEN OFFC.OFFC_CLSNG_TIME END)     AS mon_cls
,       MIN (CASE WHEN OFFC.WK_DAY ='TUESDAY'   THEN OFFC.OFFC_OPENG_TIME END)     AS tue_opn
,       MIN (CASE WHEN OFFC.WK_DAY ='TUESDAY'   THEN OFFC.OFFC_CLSNG_TIME END)     AS tue_cls
FROM        GGDD.PROV_OFFC_HR OFFC
WHERE       OFFC.PROV_ID     = '0000600'
GROUP BY offc.prov_id
;This assumes there is (at most) only one row in the table for each distinct prov_id and weekday. If not, what do you want to do? Post a little sample data (CREATE TABLE and INSERT statements) and the results you want from that data.
The staement above works in Oracle 8.1 and up, but there's a better way (SELECT ... PIVOT) available in Oracle 11. What version are you using? (It's always a good idea to include this when you post a question.)
Edited by: Frank Kulash on Jan 6, 2011 8:22 PM

Trouble using a function in the where clause

Hello,
I am using a function found at ask.tom.oracle.com which converts a long data type to a character. The function is returning an error when it is placed in the where clause. The sql statement , error message and the function from ask tom are shown below. Does anyone know how to fix this?
<pre>
SELECT A.FLDPHYSICAL,
A.FLDEXPOSURE,
A.FLDDATEDUE,
A.FLDDATELAST,
A.FLDEMPLOYEE,
B.FLDBDATE,
B.FLDMAILSTOP,
B.FLDREC_NUM,
B.FLDLNAME,
B.FLDMI,
B.FLDFNAME,
B.FLDBDATE,
B.FLDDEPT,
B.FLDSTATUS,
B.FLDSSN,
B.FLDHOMEPHON,
B.FLDWORKPHON,
B.FLDID,
B.FLDDIVISION
FROM REQEXAM A,
EMPLOYEE B,
EMPLOYEE_MEMO C
WHERE A.FLDEMPLOYEE = B.FLDREC_NUM
AND b.flduserstr = c.fldrec_num
AND OHM_PKG.GET_LONG('EMPLOYEE_MEMO', 'FLDDATA', C.ROWID) LIKE '%CDL YES%'
AND A.FLDDATEDUE > '01/01/1900'
AND A.FLDPHYSICAL ='CDP'
ORDER BY B.FLDDIVISION,
B.FLDLNAME,
B.FLDFNAME,
B.FLDMI,
A.FLDDATEDUE
The error message
Error at Command Line:26 Column:4
Error report:
SQL Error: ORA-00904: "OHM_PKG"."GET_LONG": invalid identifier
00904. 00000 - "%s: invalid identifier"
create or replace
PACKAGE OHM_PKG AS
/* TODO enter package declarations (types, exceptions, methods etc) here */
function getlong( p_tname in varchar2,p_cname in varchar2,p_rowid in rowid ) return varchar2;
END OHM_PKG;
create or replace
PACKAGE BODY OHM_PKG AS
function getlong( p_tname in varchar2,p_cname in varchar2,p_rowid in rowid ) return varchar2 as
l_cursor integer default dbms_sql.open_cursor;
l_n number;
l_long_val varchar2(4000);
l_long_len number;
l_buflen number := 4000;
l_curpos number := 0;
begin
dbms_sql.parse( l_cursor,
'select ' || p_cname || ' from ' || p_tname ||
' where rowid = :x',
dbms_sql.native );
dbms_sql.bind_variable( l_cursor, ':x', p_rowid );
dbms_sql.define_column_long(l_cursor, 1);
l_n := dbms_sql.execute(l_cursor);
if (dbms_sql.fetch_rows(l_cursor)>0)
then
dbms_sql.column_value_long(l_cursor, 1, l_buflen, l_curpos ,
l_long_val, l_long_len );
end if;
dbms_sql.close_cursor(l_cursor);
return l_long_val;
end getlong;
END OHM_PKG;
</prev>

Remove the '_' from the function's name as below:
AND OHM_PKG.GETLONG('EMPLOYEE_MEMO', 'FLDDATA', C.ROWID) LIKE '%CDL YES%'

How can i construct this query without using CASE statement?

I've a following code. I'm using this script in Hibernet. So, i cannot use CASE there. Because, hibernet doesn't support case in select statement. How can i construct the same thing which will give me the same result without using CASE?
SELECT ofc.FLT_LCL_ORIG_DT
     , ofc.CARR_IATA_CD
     , ofc.FLT_NBR
     , ofc.ORIG_ARPT_CD
     , ofc.DEST_ARPT_CD
     , sum( ofc.CNCT_PSGR_CNT) AS BOOKED_CNCT_PSGR_CNT
     , sum( CASE WHEN o.fsdr_mrkt_cd = 'D' AND d.fsdr_mrkt_cd = 'D'           THEN '0'
        ELSE to_char(ofc.CNCT_PSGR_CNT,'99')                             END ) AS BOOKED_INTL_CNCT_PSGR_CNT
     , sum(CASE WHEN o.fsdr_mrkt_cd||d.fsdr_mrkt_cd = 'DD'
                THEN '0'
        ELSE to_char(ofc.CNCT_PSGR_CNT,'99')
        END) AS NEW_BCNT
FROM OPS_FLT_CNCT ofc
                    , STN o
                    , STN d
                WHERE ofc.CNCT_ORIG_ARPT_CD = o.STN_CD
                  AND ofc.CNCT_DEST_ARPT_CD = d.STN_CD
                 -- AND TRUNC(ofc.FLT_LCL_ORIG_DT) = trunc(to_date('22-MAY-2007','DD-MON-YYYY'))
                  AND ofc.CARR_IATA_CD = 'UA'
                  AND ofc.FLT_NBR = '1218'
                  AND ofc.ORIG_ARPT_CD = upper('DEN')                AND ofc.DEST_ARPT_CD = upper('IAD')                  GROUP BY ofc.FLT_LCL_ORIG_DT
                       , ofc.CARR_IATA_CD
                       , ofc.FLT_NBR
                       , ofc.ORIG_ARPT_CD
                       , ofc.DEST_ARPT_CD ;And, the output look like this --
FLT_LCL_O CARR FLT_N ORI DES BOOKED_CNCT_PSGR_CNT BOOKED_INTL_CNCT_PSGR_CNT   NEW_BCNT
22-MAY-07 UA   1218 DEN IAD                    9                         0          0
23-MAY-07 UA   1218 DEN IAD                    1                         0          0
24-MAY-07 UA   1218 DEN IAD                    2                         1          1
25-MAY-07 UA   1218 DEN IAD                    1                         0          0Thnaks in advance for reply.
Regards.
Satyaki De.
#####

2 ideas:
1. Inline function to perform the CASE funcionaltity for you
2. Piplelined function to generate the entire dataset
Both will be slower than just using CASE in a query, but we're working around big constraints

Case Statement in a Where clause help

Oracle Database 11g Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
"CORE 11.2.0.1.0 Production"
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
Hello,
I have an APEX application that I need to build a SQL statement for a LOV (List of Values). I have a hidden filed that contains the customer type which can be an 'R' or 'B'. The query needs to be able to display two different result sets based on the customer type of 'R' or 'B'.
If the customer type is 'R' then:
SELECT drg_descr d, drg_code r
FROM distance_ranges
WHERE drg_min_miles IN (0,5)
ORDER BY drg_min_milesIf the customer type is 'B' then:
SELECT drg_descr d, drg_code r
FROM distance_ranges
WHERE drg_min_miles IN (0,5,10,15,20)
ORDER BY drg_min_milesCan someone help me with what I think needs to be a case statement?
Thanks,
Joe

Hi,
You can try CASE statement with WHERE clause
SELECT drg_descr d, drg_code r
FROM distance_ranges
WHERE (CASE param_cust_type
WHEN(param_cust_type='R') THEN (drg_min_miles IN (0, 5)
WHEN (param_cust_type='B') THEN (drg_min_miles IN (0,5,10,15,20)
END;
Please try and let me know if anything wrong.
Anyone from the forum comment my code if there is any wrong.
Thanks!
Naresh

Using OR operator in the WHERE clause in Oracle BI

Hi, i am using Oracle BI EE 10.1.3.3.3.
I construct the simple report in BI Answers on the Accounts presentation layer, and use the following filter clause:
"WHERE (AccountNum BETWEEN '441' and '473') OR (БалСчет1Порядка BETWEEN '501' and '519')"
Then i look in the cursor cache and find the real query which is going to database, and it's "where" clause now is:
"where ( (T45172.BA >= '441' or T45172.BA >= '501') and
(T45172.BA >= '441' or T45172.BA <= '519') and
(T45172.BA >= '501' or T45172.BA <= '473') and
(T45172.BA <= '473' or T45172.BA <= '519') ) "
Why BI create so many expressions instead of the source 2 expressions?
How can i force BI to use the source expressions?

I have the same settings too.
I post the following query in the Administration web interface, and set the maximum logging level (7):
SELECT "Plan Account"."Balance Account" saw_0
FROM "Plan Account"
WHERE ("Plan Account"."Balance Account" between '441' and '473')
OR ("Plan Account"."Balance Account" between '501' and '519')
ORDER BY saw_0
And got the following BI execution plan:
RqList <<5619441>> [for database 0:0,0] distinct D1.c1 as c1 [for database 3023:44913,46]
Child Nodes (RqJoinSpec): <<5619450>> [for database 3023:44913:DB,46]
RqList <<5619277>> [for database 3023:44913:DB,46]
D1.c1 as c1 GB [for database 3023:44913,46]
Child Nodes (RqJoinSpec): <<5619360>> [for database 3023:44913:DB,46]
RqList <<5619284>> [for database 3023:44913:DB,46]
Dim - Plan Account.BA as c1 GB [for database 3023:44913,46]
Child Nodes (RqJoinSpec): <<5619350>> [for database 3023:44913:DB,46]
TB_PLAN_ACCOUNT T45172
DetailFilter: (not Dim - Plan Account.BA < '441' or not Dim - Plan Account.BA < '501') and (not Dim - Plan Account.BA < '441' or not '519' < Dim - Plan Account.BA) and (not Dim - Plan Account.BA < '501' or not '473' < Dim - Plan Account.BA) and (not '473' < Dim - Plan Account.BA or not '519' < Dim - Plan Account.BA) [for database 0:0]
) as D1
) as D1
OrderBy: c1 asc [for database 0:0,0]
and following query sent to database:
-------------------- Sending query to database named DB (id: <<5619277>>):
select distinct D1.c1 as c1
from
(select distinct T45172.BA as c1
from
TB_PLAN_ACCOUNT T45172 /* Dim - Plan Account */
where ( (T45172.BA >= '441' or T45172.BA >= '501') and (T45172.BA >= '441' or T45172.BA <= '519') and (T45172.BA >= '501' or T45172.BA <= '473') and (T45172.BA <= '473' or T45172.BA <= '519') )
) D1
So, i got the same bad where clause...
What can you advice?

Whats the alternate for left join with using IN operator in the where claus

My senario...
Select t1.f1, t1.f2, t2.f3
From t1, t2
Where ...
      t1.f1> (+) IN t2.f1
      ...alternate query..
Select t1.f1, t1.f2, t2.f3
From t1, t2
Where ...
      (t1.f1> IN t2.f1 or 1=1)
      ...will the alternate query satisfy the above senario..?

I'm not quite sure I've understood what the OP's question is, but will ANSI syntax deal with it?
SQL> ed
Wrote file afiedt.buf
1 with a as (select 1 as num, 2 as data from dual union all
2             select 2 as num, 3 as data from dual union all
3             select 3 as num, 4 as data from dual),
4       b as (select 1 as num, 5 as data from dual union all
5             select 3 as num, 7 as data from dual)
6 -- END OF TEST DATA
7 select a.num, a.data, b.data
8* from a LEFT OUTER JOIN b ON (a.num = b.num AND b.num IN (3))
SQL> /
       NUM       DATA       DATA
         3          4          7
         1          2
         2          3
SQL>

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

How to use case to replace the & in select statement

Oracle version : 11.1.0.6.0
RHEL
Hi,
I want to get a list of all expired and locked users but want to replace the "&" with and here is my code but it isn't working.
Please some guidance, thanks.
SQL> select username,
2 case (account_status like 'EXP%' then 'EXPIRED AND LOCKED'
3 ELS 'no locked users'
4 end) account_status
5 from dba_users
6 where account_status like 'EXPI%';
case (account_status like 'EXP%' then 'EXPIRED AND LOCKED'
ERROR at line 2:
ORA-00907: missing right parenthesis

798188 wrote:
thanks for the comments I corrected the ELSE and 'EPX%' but still same error :
EOH> select username,
2 case (account_status like 'EXP%' then 'EXPIRED AND LOCKED'
3 ELSE 'no locked users'
4 end) account_status
5 from dba_users
6 where account_status like 'EXP%';
case (account_status like 'EXP%' then 'EXPIRED AND LOCKED'
ERROR at line 2:
ORA-00907: missing right parenthesisFirst of all, you do not need a CASE statement.
Did you see the where clause of your query??
6 where account_status like 'EXP%';do you realise that your query will always return those records for which value of account_status column starts with 'EXP'?
Why use CASE when it could be simply written like this :
SELECT username,
'EXPIRED AND LOCKED'
FROM dba_users
WHERE account_status LIKE 'EXP%'

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)

Can I use SYSDATE in the WHERE clause to limit the date range of a query

Hi,
Basicaly the subject title(Can I use SYSDATE in the WHERE clause to limit the date range of a query) is my question.
Is this possible and if it is how can I use it. Do I need to join the table to DUAL?
Thanks in advance.
Stelios

As previous poster said, no data is null value, no value. If you want something, you have nvl function to replace null value by an other more significative value in your query.<br>
<br>
Nicolas.

Checking for the condition types using case statement

hi folks,
I have a lot of condition types that I have to check for and I am using case statement to do that. The code goes like this.
case wac-kschl.
        when 'ZRAT' OR 'ZAGR' OR 'ZRCR' OR
              'Y098' OR 'Y007' OR 'ZREW' OR 'Y106'        OR 'ZTSR' OR 'Y127' OR 'Y125' OR 'Y126' OR 'Y124' OR 'Y157' OR 'Y092' OR 'Y085' OR 'Y090' OR 'ZMZD'
OR 'Y215' OR 'Y214' OR 'Y111' OR 'ZC$D' OR 'ZAUD'.
up till here it is working on errors and when I add few more condition types to the case statement it is throwing the error.
I have to check for all the condition types out here.
How can I correct it? Is there a better way to do it?
thanks
Santhosh

Hi Santhosh,
I think that your CASE statement has a flaw. The line length of one of the lines is too large. You need to insert a carriage-return to shorten it (or press the button 'Pretty Printer').
The code would look nicer like this:[code] CASE wac-kschl.
    WHEN 'ZRAT' OR 'ZAGR' OR 'ZRCR' OR 'Y098' OR 'Y007' OR 'ZREW'
      OR 'Y106' OR 'ZTSR' OR 'Y127' OR 'Y125' OR 'Y126' OR 'Y124'
      OR 'Y157' OR 'Y092' OR 'Y085' OR 'Y090' OR 'ZMZD' OR 'Y215'
      OR 'Y214' OR 'Y111' OR 'ZC$D' OR 'ZAUD' OR 'Z001' OR 'Z002'
      OR 'Z003' OR 'Z004' OR 'Z005' OR 'Z006' OR 'Z007' OR 'Z008'
      OR 'Z009' OR 'Z010' OR 'Z011' OR 'Z012' OR 'Z013' OR 'Z014'.
    Do your thing here
      WRITE: / 'OK'.
    WHEN OTHERS.
      WRITE: / 'NOT OK'.
ENDCASE.[/code]If this will not work for you, you could try a different approach:[code]* Local definition
DATA:
    var_list(1024).
Build variable string for checking
CONCATENATE 'ZRAT ZAGR ZRCR Y098'
              'Y007 ZREW Y106 ZTSR'
              'Y127 Y125 Y126 Y124'
              'Y157 Y092 Y085 Y090'
              'ZMZD Y215 Y214 Y111'
              'ZC$D ZAUD'
         INTO var_list
    SEPARATED BY space.
Check if the correct value is supplied
IF var_list CS wac-kschl.
Do your thing here
    WRITE: / 'OK'.
ENDIF.[/code]Hope this helps you a bit.
Regards,
Rob.

Query Tuning - using CASE statement in the WHERE clause - Duplicate Post

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