Can I rewrite the following query without using Row_number() function ??!!

Hello every one, can I rewrite the following query without using the 'ROW_NUMBER() OVER ' part.
The query is supposed to pull out the records whose CODE is not NULL and has most
recent date for UPDATE_DATE . The reason I wanted to do this is, When I embed this query
in between many other queries along with JOINs, My oracle server is unable to execute. So, I thought
its better to supplant 'ROW_NUMBER() OVER ' logic with something else and try it. .
SELECT a.* FROM
(SELECT b.*, ROW_NUMBER() OVER (PARTITION BY b.PIDM
ORDER BY b.UPDATE_DATE DESC) AS Rno
FROM
SELECT *
FROM SHYNCRO WHERE CODE IS NOT NULL
)b
)a
WHERE a.Rno = 1

Hi,
You didn't write over 150 lines of code and then start testing it, did you?
Don't.
Take baby steps. Write as little as pssiblem test that. Debug and test again until you have something that does exactly what you want it to do.
When you have somehting that works perfectly, take one baby step. Add a tiny amount of code, maybe 1 or 2 lines more, and test again.
When you do get an error, or wrong results, you'll have a much better idea of where the problem is. also, you won't be building code on a flimsy foundation.
If you need help, post the last working version and the new version with the error. Explain what you're trying to do in the new version.
The error message indicates line 133. It looks like line 133 of your code is blank. Does your front end allow completely blank lines in the middle of a query? SQL*Plus doesn't by default; you have to say
SET SQLBLANKLINES ONto have a completely blank line in SQL*Plus. (However, lines containing nothing but at commnet are always allowed.)
You may have noticed that this site normally doesn't display multiple spaces in a row.
Whenever you post formatted text (such as indented code) on this site, type these 6 characters:
\(small letters only, inside curly brackets) before and after each section of formatted text, to preserve spacing.
The 4 people who posted small code fragments for you to read all did this. It would be so much easier for people to read your humongeous query if it were formatted.

Similar Messages

Can u write the following query without using group by clause

select sp.sid, p.pid, p.name from product p, supp_prod sp
where sp.pid= p.pid and
sp.sid = ( select sid from supp_prod group by sid
having count(*) =(select count(*) from product));
thru this, we retrieving all the products delivered by the supplier.
Can you write the following query without using the group by clause

select sp.sid, p.pid, p.name
from product p, supp_prod sp
where sp.pid= p.pid the above query will still retrieve all the products supplied by the supplier. sub-query is not necessary.
maybe if you can post some sample data and output will help us understand what you want to achieve.

How Can I make the following query faster

Hi Guru
I want your valuable suggestion to make the following query faster.I did not write all required columns list. I gave here all those columns where I have conditon like decode,case when,or subquery
(SELECT CASE WHEN REPORTED_BY IS NULL THEN
          (SELECT INITCAP(EMP_NAME) FROM HR_EMP WHERE EMP_NO = M.EMP_NO_RADIO)
     ELSE (SELECT INITCAP(EMP_NAME) FROM HR_EMP WHERE EMP_NO = M.REPORTED_BY) END RADIOLOGIST_NAME,
     (SELECT TEAM_NAME FROM DC_TECHTEAMMST WHERE TEAM_NO = M.GROUP_NO) GROUP_NAME,
     CASE WHEN M.RESULT_ENTRY_LOCK_BY IS NOT NULL THEN 'R'
WHEN M.REPORT_DONE = 'D' THEN 'D'
WHEN M.REPORT_DONE = 'P' THEN 'P'
WHEN M.REPORT_DONE = 'F' THEN 'F'
     WHEN NVL(M.IMG_CAPTURED,'X') NOT IN ('B','Y') OR M.QA_RESULT = 'F' THEN 'S'
WHEN NVL(M.IMG_CAPTURED,'X') IN ('B','Y') AND NVL(M.QA_RESULT,'X') NOT IN ('B','P') THEN 'Q'
     wHEN NVL(M.IMG_CAPTURED,'X') IN ('B','Y') AND NVL(M.QA_RESULT,'X') IN ('B','P') THEN 'C'
END STATUS,
     (SELECT DECODE(NVL(V.DELIVERY_STATUS,'N'),'E',3,'U',2,1)
          FROM FN_VOUCHERCHD V WHERE V.VOUCHER_NO = M.VOUCHER_NO AND V.ITEM_NO = M.TEST_NO) DELIVERY_STATUS,
     trunc((start_time-order_end)*24,0)||' hr'||':'||
     decode(length(trunc(to_char(MOD((M.start_time-M.order_end)*24,1)*60),0)),2,to_char(trunc(to_char(MOD((M.start_time-M.order_end)*24,1)*60),0))
          ,1,to_char('0'||trunc(to_char(MOD((M.start_time-M.order_end)*24,1)*60),0)))||' mi' duration_order_capture,
     DECODE(R.CONFIDENTIAL_PATIENT,'Y','*',NVL(R.NAME,R.name_lang_name||' '||R.name_lang_fname)) PAT_NAME,
     FNC_PATIENTAGE(R.REG_NO,'',R.CONFIDENTIAL_PATIENT) pat_age,
     DECODE(R.CONFIDENTIAL_PATIENT,'Y','*',R.PATIENT_SEX) PAT_SEX
FROM DC_MODALITYAPPOINTMENT M,DC_TESTMST T,OP_REGISTRATION R
WHERE M.ACCESSION_NO IS NOT NULL AND NVL(M.CANCEL_FLAG,'N') = 'N'
AND (NVL(T.SP_GEN,'S') = 'S' OR NVL(M.DOC_REQ_GEN,'N') = 'Y')
AND M.TEST_NO IS NOT NULL AND M.TEST_NO = T.TEST_NO AND M.REG_NO = R.REG_NO)
How can I make the above query faster.
Query condition or indexing whatever is preferable please guide me.
The approximate data of tables
DC_MODALITYAPPOINTMENT 2,000,000
A lot of updating is going on some columns of this table.all columns are not in the select list, Insertion is happend in batch process by back-end trigger of another table.
Primary key based one column,
OP_REGISTRATION 500,000
Daily insertion on this table around 500 records,updation is not much.
Primary key based one column 'reg_no'
DC_TESTMST
Total records of this table not more than 1500.This is setup table. Insertion and updation is not much on this table also
I have to create a view based on this query .
and I have to create another view to serve another purpose.
In the 2nd view I need this query as well as I need another query by using union all operator based on a table(dc_oldresult)
which have 1,600,000 records.There is no DML on this table
SELECT      NVL((SELECT USER_DEFINE_TEST_NO FROM DC_TESTMST WHERE TEST_NO = SV_ID AND ROWNUM = 1 ),SV_ID) USER_D_EXAM_NO,
(SELECT TEST_TYPE FROM DC_TESTMST WHERE TEST_NO = SV_ID AND ROWNUM = 1 ) EXAM_TYPE,
     NVL((SELECT TEST_NAME FROM DC_TESTMST WHERE TEST_NO = SV_ID AND ROWNUM = 1),'Exam Code: '||sv_id) EXAM_NAME,
     (SELECT PAT_NAME FROM OP_REGISTRATION WHERE REG_NO = HN) PATIENT_NAME,
     (SELECT PAT_AGE FROM OP_REGISTRATION WHERE REG_NO = HN) PATIENT_AGE,
     (SELECT PAT_SEX FROM OP_REGISTRATION WHERE REG_NO = HN) PATIENT_GENDER
FROM DC_OLDRESULT
WHERE HN IS NOT NULL AND SV_ID IS NOT NULL AND UPPER(ACTIVE) = 'TRUE'
Should I make join DC_OLDRESULT, OP_REGISTRATION and DC_TESTMST? or The eixisting subquery is better?
I use OP_REGISTRATION and DC_TESTMST in both query
Thanks in advance
Mokarem

When your query takes too long ...

WITHOUT USING ROW_NUMBER FUNCTIONS IN T-SQL

INPUT:-
CUST_ID
GIFT_ID
100
10
100
20
100
30
200
10
200
20
200
30
300
20
OUTPUT:-
CUST_ID
GIFT_ID
SEQ
100
10
1
100
20
2
100
30
3
200
10
1
200
20
2
200
30
3
300
20
1
santoshbangalore

THANK YOU SO MUCH FOR YOUR ANS? BUT MY INPUT TABLE A CONTAIN ONLY TWO COLUMN'S
CUST_ID,GIFT_ID
AND IN OUT PUT I NEED THE ABOVE OUTPUT WITH
CUST_ID,GIFT_ID,ROW_NUMBER AS SHOWN ABOVE?
santoshbangalore

Query without using connect by

Hi Guys,
I need to rewrite the following query without a connect by command. Is there a way to do this?
[code]
SELECT DISTINCT *
FROM serial_structure_table str,
       serial_catalog_table   psc,
       serial_table           sop,
       life_serials_table     lls,
       part_table             mp,
       serial_parts_table     vs,
       events_table           pe,
       task_table             lmt
WHERE str.part_no       = psc.part_no
AND   str.serial_no     = psc.serial_no
AND   str.part_no       = sop.part_no(+)
AND   str.serial_no     = sop.serial_no(+)
AND   str.part_no       = lls.part_no(+)
AND   str.serial_no     = lls.serial_no(+)
AND   str.part_no       = vs.part_no
AND   str.serial_no     = vs.serial_no
AND   mp.maint_prog     = vs.maint_prog_id(+)
AND   mp.maint_prog     = vs.maint_prog_rev(+)
AND   mp.part_no        = vs.part_no(+)
AND   mp.maint_group    = vs.maint_group(+)
AND   str.part_no       = pe.part_no(+)
AND   str.serial_no     = pe.serial_no(+)
AND   str.serial_no     = lmt.serial_no(+)
AND   str.part_no       = lmt.part_no(+)
AND   mp.maint_code     = lmt.maint_code
AND   str.parent_seq_no IS NOT NULL
AND   str.seq_no IN (SELECT seq_no FROM serial_table
                      START WITH seq_no = (SELECT vss.seq_no
                                           FROM serial_structure_table vss, vehicle_serial_table vehicle
                                           WHERE vss.part_no      = vehicle.part_no
                                           AND vss.serial_no      = vehicle.serial_no
                                           AND vehicle.vehicle_id = '120')
                      CONNECT BY PRIOR seq_no = parent_seq_no)
[/code]
Many Thanks,
Napster

Hi Frank,
This query which fetches a data set to a report... So when executing this query in the report I will need to have a sql expression something like below...
select *
from MY_VIEW
where vehicle.vehicle_id = '&Vehicle_Id'
When the above is run user will be asked to insert a vehicle id and that will be the user input for my sql statement... (I inserted the value 120 here just for the testing purpose). In here I will need to create a view (something like MY_VIEW which consist of the entire sql expression) as long sql expressions are not supported in our tool. So I have to compile a view with the results set without the connect by clause...
Just let me know if it is still not clear..
Thanks
Napster

How can i fetch records from 3 tables in a single query without using join

Hi.
Can any body please tell me <b>How can i fetch records from 3 tables with a single query without using joins</b>
Thanx
prabhudutta

Hi Prabgudutta,
We can fetch the data by using the views concept.
Go throuth this info we can know the how to create view and same like database table only we can fetch the data.
Views conatin the data at runtime only.
Four different view types are supported. These differ in the
way in which the view is implemented and in the methods
permitted for accessing the view data.
Database views are implemented with an equivalent view on
the database.
Projection views are used to hide fields of a table (only
projection).
Help views can be used as selection method in search helps.
Maintenance views permit you to maintain the data
distributed
on several tables for one application object at one time.
step by step creation of Maintenance view:
With the help of the table maintenance generator, you are able to maintain the ENTRIES of the table in SM30 transaction.
It can be set in transaction SE11 - Tools - Table maintenance generator.
Table maintanance Generator is used to manually input values using transaction sm30
follow below steps
1) go to se11 check table maintanance check box under attributes tab
2) utilities-table maintanance Generator-> create function group and assign it under
function group input box. Also assign authorization group default &NC& .
3) select standard recording routine radio in table table mainitainence generator to move table
contents to quality and production by assigning it to request.
4) select maintaience type as single step.
5) maintainence screen as system generated numbers this dialog box appears when you click on create button
6) save and activate table
One step, two step in Table Maintenance Generator
Single step: Only overview screen is created i.e. the Table Maintenance Program will have only one screen where you can add, delete or edit records.
Two step: Two screens namely the overview screen and Single screen are created. The user can see the key fields in the first screen and can further go on to edit further details.
SM30 is used for table maintenance(addition or deletion of records),
For all the tables in SE11 for which Table maintenance is selected , they can be maintained in SM30
Sm30 is used to maintain the table ,i.e to delete ,insert or modify the field values and all..
It creates the maintenance screen for u for the aprticular table as the maintenance is not allowed for the table..
In the SE11 delivery and maintenance tab, keep the maintenance allowed..
Then come to the SM30 and then enter the table name and press maintain..,
Give the authorization group if necessary and give the function group and then select maintenance type as one step and give the screen numbers as system specified..
Then create,,,
Then u will able to see the maintenance view for the table in which u can able to insert and delete the table values...
We use SM30 transaction for entering values into any DB table.
First we create a table in SE11 and create the table maintenance generator for that Table using (utilities-> table maintenance generator) and create it.
Then it will create a View.
After that from SM30, enter the table name and Maintain, create new entries, change the existing entries for that table.
Hope this resolves your query.
Reward all the helpful answers.
Rgds,
P.Naganjana Reddy

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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'
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                  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
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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
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Hi ,
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thanks for your help advance,
regards,
Senthur

957595 wrote:
Actually my problem is ithat while selecting the parents hiearchy of the child data using
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BBB --PARENT -2
CCC --PARENT-1
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So confusing with using this rownum in my query.
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SQL> ed
Wrote file afiedt.buf
1 select empno, lpad(' ',(level-1)*2,' ')||ename as ename, prior empno as mgr
2 from emp
3 connect by mgr = prior empno
4* start with mgr is null
SQL> /
     EMPNO ENAME                                 MGR
      7839 KING
      7566   JONES                              7839
      7788     SCOTT                            7566
      7876       ADAMS                          7788
      7902     FORD                             7566
      7369       SMITH                          7902
      7698   BLAKE                              7839
      7499     ALLEN                            7698
      7521     WARD                             7698
      7654     MARTIN                           7698
      7844     TURNER                           7698
      7900     JAMES                            7698
      7782   CLARK                              7839
      7934     MILLER                           7782
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update 2
rollback transaction
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For every expert, there is an equal and opposite expert. - Becker's Law
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In product table there is multiple product_code date wise.
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WHERE NVL(update_product_flag,0) = 0 ;
CREATE OR REPLACE FUNCTION HVL.maxdateproduct (p_product IN VARCHAR2) RETURN NUMBER
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Thanks in Advance.

Hi,
Something like this.
update setlls_table st
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Regards
Anurag Tibrewal.

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Hello...
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im using set autotrace on...but is there another way to do it?
thanks!
Alessandro Falanque.

Hi,
You can use Explain Plan for checking that your query is using proper index or not. First you need to check that Plan_table is installed in your database or not. If it is not there THEN THE SCRIPT WILL BE LIKE THIS:
CREATE TABLE PLAN_TABLE (
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TIMESTAMP DATE,
REMARKS VARCHAR2 (80),
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OBJECT_TYPE VARCHAR2 (30),
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POSITION NUMBER,
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CARDINALITY NUMBER,
BYTES NUMBER,
OTHER_TAG VARCHAR2 (255),
PARTITION_START VARCHAR2 (255),
PARTITION_STOP VARCHAR2 (255),
PARTITION_ID NUMBER,
OTHER LONG,
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TABLESPACE SYSTEM NOLOGGING
PCTFREE 10
PCTUSED 40
INITRANS 1
MAXTRANS 255
STORAGE (
INITIAL 10240
NEXT 10240
PCTINCREASE 50
MINEXTENTS 1
MAXEXTENTS 121
FREELISTS 1 FREELIST GROUPS 1 )
NOCACHE;
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Select level, SubStr( lpad(' ',2*(Level-1)) || operation || ' ' ||
object_name || ' ' || options || ' ' ||
decode(id, null , ' ', decode(position, null,' ', 'Cost = ' || position) ),1,100)
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from PLAN_TABLE
start with id = 0
connect by
prior id = parent_id;
This will show how the query is getting executed . What are all the indexes it is using etc.
Cheers.
Samujjwal Basu

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Problem in finding Exact result by using the following Query

Hello,
I am finding difficulty in producing the required result by using the following Query in Reports 6i
(Note: - The query actual output and the required output are as follows: -)
SELECT
DISTINCT
SH.S_HEAD_CODE,
B.BILL_ID,
B.SANCTION_DATE,
E.EMP_NAME,
E.EMP_DESIGNATION,
B.TOTAL_BILL,
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WHERE
SH.S_HEAD_CODE=B.S_HEAD_CODE
AND B.S_HEAD_CODE=BD.S_HEAD_CODE
AND B.EMP_ID_NO=E.EMP_ID_NO
AND B.BILL_ID=BD.BILL_ID
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Sohail 7147 1492853
Saqib 2131 1497869
Amir 6802 1493198
Shafiq 1214 1498786
Note:- In the above output the above query is subtracting the current balance from Total Sanctioned Amount (Rs. 1500000) each time, but
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Sohail 7147 1492853 {Previous Balance - Current Bill Amount (1500000-7147) }........ The previous balance was actual amount Rs. 1500000
Saqib 2131 1490722 {Previous Balance - Current Bill Amount (1492853 - 2131)}
Amir 6802 1483920 {Previous Balance - Current Bill Amount (1490722 - 6802)}
Shafiq 1214 1482706 {Previous Balance - Current Bill Amount (1483920 - 1214)}
Results Continue...........................
Please help me to solve this problem.
Thank you in advance

just check if this meets your requirements,
SQL>
SQL> With t As
2 (
3 Select 'Sohail' c1 ,7147 c2 ,1492853 c3 From dual Union All
4 Select 'Saqib'   ,2131 ,1497869         From dual Union All
5 Select 'Amir'    ,6802 ,1493198         From dual Union All
6 Select 'Shafiq' ,1214 ,1498786          From dual
7 )
8 Select c1,
9         c2,
10         prv_amt - c2 current_amt
11 From
12 (
13 Select c1,
14         c2,
15         c3,
16         lag(c3,1,1500000) over(Order By c3) prv_amt
17 From t
18 );
C1             C2 CURRENT_AMT
Sohail       7147     1492853
Amir         6802     1486051
Saqib        2131     1491067
Shafiq       1214     1496655
SQL>

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Can I rewrite the following query without using Row_number() function ??!!

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