application of analytic function

Similar Questions

• [8i] can I use an analytical function, or do I need a subquery?

  Hi all...
  
  This should be a quick. I hope I can solve my problem with an analytic function, but I don't know if it's possible. Can I use a subquery if I have to, but I'd really rather not.
  
  Here is a very simple version of what I'm trying to do:
  

  CREATE TABLE     test123
  (     field1          VARCHAR2(10)
  ,     field2          VARCHAR2(10)
  ,     my_date          DATE
  );
  
  INSERT INTO     test123
  VALUES     ('value1', 'a',TO_DATE('12/31/1900','mm/dd/yyyy'));
  INSERT INTO     test123
  VALUES     ('value1', 'b',TO_DATE('01/02/2010','mm/dd/yyyy'));
  INSERT INTO     test123
  VALUES     ('value1', 'c',TO_DATE('01/05/2010','mm/dd/yyyy'));
  
  INSERT INTO     test123
  VALUES     ('value2', 'a',TO_DATE('12/31/1900','mm/dd/yyyy'));
  INSERT INTO     test123
  VALUES     ('value2', 'b',TO_DATE('01/01/2010','mm/dd/yyyy'));
  INSERT INTO     test123
  VALUES     ('value2', 'c',TO_DATE('01/15/2010','mm/dd/yyyy'));

  I want the results:

  FIELD1     FIELD2
  --------------
  value2     a
  value2     b
  value2     c
  value1     a
  value1     b
  value1     c

  I started with the following query:

  SELECT     field1
  ,          field2
  FROM     test123
  ORDER BY     MIN(my_date)     OVER     (
                                               PARTITION BY     field1
                                               )                                -- removed DESC here
  ,               field2

  But the problem is the database has a date of 31 December 1900 ' as default / initial for any date field. I don't want these default values taken into account in my calculation of min. I tried to put a WHERE clause in my analytical function [WHERE my_date <>TO_DATE (' 12/31/1900 ',' mm/dd/yyyy')], but I kept getting an error message "missing right parenthesis", so it seems that you can not have a WHERE clause here... or I'm just something wrong?
  
  Moreover, it is a 8i database...
  
  Edited by: user11033437 may 20, 2010 17:16: took the 'DESC' criteria out of my order by clause. In my real application, I need DESC, but not the example.

  Hello

  A WHERE clause excludes rows in the results set. Whenever you want you can have a WHERE clause that was more limited (for example, something that would simply exclude MIN calculating values in the ORDER BY clause), then think CASE:

  SELECT       field1
  ,       field2
  FROM       test123
  ORDER BY  MIN ( CASE
                WHEN  my_date > TO_DATE ( '12/31/1900'
                               , 'MM/DD/YYYY'
                               )
                THEN  my_date
            END
             )     OVER     (PARTITION BY     field1)      DESC
  ,       field2
  ;
  

  This puts the lines for "Value1" first.
  The minimum my_date for "Value1" (after excluding the values of 1900) is later than the minimum for "Value2", so I think that you either made a mistake in the desired output, or you do not want sorted by descending order.

  As always, thanks for the display of the data of the sample and the results so clearly.

• Error analytic function

  Hi all
  

  SELECT chp.acct_nbr,CHP.INBOX_ID,
         MAX (CHP.INBOX_ID) OVER (PARTITION BY chp.ACCT_NBR)
                                                              
         NULL, 'TMQ', NULL,
         row_number() OVER (PARTITION BY CHP.ACCT_NBR ORDER BY CHP.INBOX_ID desc) AS MAXM
    FROM chapsapp.mod_qual chp
    WHERE
    MAXM=1

  gives error for maxm as invalid identifier.

  Hello

  AJR says:
  Hi all

  SELECT chp.acct_nbr,CHP.INBOX_ID,
  MAX (CHP.INBOX_ID) OVER (PARTITION BY chp.ACCT_NBR)
  
  NULL, 'TMQ', NULL,
  row_number() OVER (PARTITION BY CHP.ACCT_NBR ORDER BY CHP.INBOX_ID desc) AS MAXM
  FROM chapsapp.mod_qual chp
  WHERE
  MAXM=1
  

  gives error for maxm as invalid identifier.

  You cannot reference an alias for column (like MAXM) in the same request where it is defined. (Actually, there is one exception: in the ORDER BY clause.)
  Also, the analytic function are calculated after the WHERE clause is applied, you cannot use analytics in the WHERE clause.

  The solution to these two problems is to calculate the analytical functions in a subquery, and then reference them in the clause WHERE (or wherever you want) a Super application.

  So you're got query mutilated, but I think you are trying to do something like this:

  WITH    got_maxm    AS
  (
      SELECT  chp.acct_nbr
      ,         CHP.INBOX_ID
      ,       MAX (CHP.INBOX_ID) OVER (PARTITION BY chp.ACCT_NBR)          AS x
      ,       row_number ()      OVER (PARTITION BY CHP.ACCT_NBR
                                                  ORDER BY    CHP.INBOX_ID   desc
                          )                         AS MAXM
         FROM  chapsapp.mod_qual chp
  )
  SELECT  acct_nbr
  ,     inbox_id
  ,     x
  ,     NULL
  ,     'TMQ'
  ,     NULL
  ,     maxm
  FROM     got_maxm
  WHERE     maxm     = 1
  ;
  

• 7 error "Paris 7.2.241.1enRegInstaller.exe of work and has been closed." A problem with the application to stop functioning properly. Windows will notify you if a solution is available.

  Original title - 7.2.241.1enRegInstaller.exe

  Hello.

  Today, JUST after I "Set Windows to update," twice, I got the disconcerting message:

  "Paris 7.2.241.1enRegInstaller.exe of working and was closed".

  A problem with the application to stop functioning properly.  Windows will notify you if a solution is available. »

  Any wisdom or experience with this?  I'm on a 64-bit HP Pavilion older (dv7-1245dx) with this OS JUST-update Windows (Vista Home Premium).

  Thank you.

  GIES W

  The solution has been found just uninstall bing bar, restart the computer, and if you want just bing toolbar to reinstall. This easy solution my system fixed.  Bing has again reminded all my points that I have amassed

• Cannot use analytical functions such as lag/lead in odi components 12 c except in the expression

  Hi I am a beginner of ODI 12 c

  I'm trying to get the last two comments made on the product for a given product id. and load them into a target.

  I have a source table something like

  Product SR_NO comments LAST_UPDATED_TS

  1 good car 2015/05/15 08:30:25

  1 car average 2015/05/15 10:30:25

  Jeep 2 super 2015/05/15 11:30:25

  1 car bad 2015/05/15 11:30:25

  Jeep 2 horrible 2015/05/15 09:30:25

  Jeep 2 excellent 2015/05/15 12:30:25

  
  

  I want a target table based on their last timestamp updated as (last two comments)

  
  

  SR_NO Comment1 Comment2

  1                             bad                      average
  

  2 super excellent

  I used the logic below to get records in SQL Developer but in ODI 12 c, I'm not able to do this by mapping a source to the target table by applying analytical functions to the columns in the target table. Can someone help me solve this problem

  SELECT * FROM)

  SELECT SR_NO Comment1, LAG(Comment1,1,) ON Comment2 (SR_NO ORDER BY LAST_UPDATED_TS ASC PARTITION),

  ROW_NUMBER() ON RN (SCORE FROM SR_NO ORDER BY LAST_UPDATED_TS DESC)

  FROM Source_table

  ) M

  WHERE RN = 1

  ;

  UM, I'm afraid that ODI puts the filter too early in the request, if it generates:

  SELECT * FROM)

  SELECT SR_NO Comment1, LAG(Comment1,1,) ON Comment2 (SR_NO ORDER BY LAST_UPDATED_TS ASC PARTITION),

  ROW_NUMBER() ON RN (SCORE FROM SR_NO ORDER BY LAST_UPDATED_TS DESC)

  FROM Source_table

  WHERE RN = 1

  ) M

  ;

  Instead of:

  SELECT * FROM)

  SELECT SR_NO Comment1, LAG(Comment1,1,) ON Comment2 (SR_NO ORDER BY LAST_UPDATED_TS ASC PARTITION),

  ROW_NUMBER() ON RN (SCORE FROM SR_NO ORDER BY LAST_UPDATED_TS DESC)

  FROM Source_table

  ) M

  WHERE RN = 1

  ;

  Even by changing the 'run on Hint"of your component of the expression to get there on the source, the request will stay the same.

  I think the easiest solution for you is to put everything before the filter in a reusable mapping with a signature of output. Then drag this reusable in your mapping as the new source and check the box "subselect enabled."

  Your final mapping should look like this:

  

  It will be useful.

  Kind regards

  JeromeFr

• Which analytical function to use?

  
  Hi gurus,

  DB - Oracle 11 g 2

  I followed the examples of data in the table test_a.

  col1 col2 col3

  -----            -------            --------

  x                 y                   y

  p                 q                  y

  a                b                   y

  p                q                   y

  t                 r                    y

  p                q                   y

  The col3 column is always 'y '. But here's the data p, q, there is repeated 3 times (duplicate) and if this is the case I want to update only the first recordings like "n" col3 it is to say p, q, n. rest will be as it is.

  I am able to get the row_number() for it but not able to do this.

  Select col1, clo2, clo3 row_number() over (partition by col2) arrested by col1 as test_a r_num

  Would it be possible directly by any analytic function?

  Thank you

  SID

  COL4 is logical...

  Something like that?

  with x as)

  Select col1, col2 ' x' 'y', 'y' col3 col4 1 Union double all the

  Select 'p' col1, col2 'q', 'y' col3 col4 2 Union double all the

  Select 'a' col1, col2 'b', 'y' col3 col4 3 of all the double union

  Select 'p' col1, col2 'q', 'y' col3 col4 4 Union double all the

  Select 't' col1, col2 'r', 'y' col3, col4 5 Union double all the

  Select 'p' col1, col2 'q', 'y' col3 col4 6 double

  )

  ---

  Select * from)

  Select x.*,

  ROW_NUMBER() on rn1 (score of col1, col2, col3 col4 sort),

  ROW_NUMBER() on rn2 (partition by col1, col2, col3 col4 desc sorting)

  x

  )

  where rn1 = 1 and rn2 <> 1;

  Understand the logic and simply change SELECT a query to UPDATE...

• Using the analytic function

  Oracle 11g Release 2

  I'm assuming that the best solution is the use of analytical functions.

  create table test3
  ( part_type_id  varchar2(50)
  ,group_id      number
  ,part_desc_id  number
  ,part_cmt      varchar2(50)
  )
  /
  
  insert into test3 values( 'ABC123',1,10,'comment1');
  insert into test3 values( 'ABC123',1,10,'comment2');
  insert into test3 values( 'ABC123',2,15,'comment1');
  insert into test3 values( 'ABC123',2,15,'comment2');
  insert into test3 values( 'EFG123',25,75,'comment3');
  insert into test3 values( 'EFG123',25,75,'comment4');
  insert into test3 values( 'EFG123',25,75,'comment5');
  insert into test3 values( 'XYZ123',1,10,'comment6');
  insert into test3 values( 'XYZ123',2,15,'comment7');
  commit;
  
  select * from test3;
  
  PART_TYPE_ID           GROUP_ID PART_DESC_ID PART_CMT
  -------------------- ---------- ------------ --------------------
  ABC123                        1           10 comment1
  ABC123                        1           10 comment2
  ABC123                        2           15 comment1
  ABC123                        2           15 comment2
  EDG123                        25          75 comment3
  EDG123                        25          75 comment4
  EDG123                        25          75 comment5
  XYZ123                        1           10 comment6
  XYZ123                        2           15 comment7
  
  9 rows selected.
  
  Desired output:
  
  PART_TYPE_ID           GROUP_ID PART_DESC_ID PART_CMT
  -------------------- ---------- ------------ --------------------
  ABC123                        1           10 comment1 
  ABC123                        2           15 comment1
  XYZ123                        1           10 comment1
  XYZ123                        2           15 comment2
  
  RULE: where one part_type_id has multiple (2 or more distinct combinations) of group_id/part_desc_id
  
  NOTE: There are about 12 columns in the table, for brevity I only included 4.
  
  
  
  

  Post edited by: orclrunner was updated desired output and rule

  Hello

  Here's one way:

  WITH got_d_count AS

  (

  SELECT part_type_id, group_id, part_desc_id

  MIN (part_cmt) AS min_part_cmt

  COUNT AS d_count (*) OVER (PARTITION BY part_type_id)

  OF test3

  GROUP BY part_type_id, group_id, part_desc_id

  )

  SELECT DISTINCT

  group_id, part_desc_id, part_type_id, min_part_cmt

  OF got_d_count

  WHERE d_count > 1

  ;

  Output:

  GROUP_ID PART_DESC_ID MIN_PART_CMT PART_TYPE_ID

  ------------ ---------- ------------ ------------

  ABC123 1 10 comment1

  ABC123 2 15 comment1

  XYZ123 1 10 comment6

  XYZ123 2 15 comment7

  Analytical functions, such as the COUNTY and MIN, many global versions, in addition, it can give the same results.  Use the analytical versions when each row of output corresponds to exactly 1 row of input and the aggregate and GROUP BY version when each line of output corresponds to a group of lines 1 or more input.  In this issue, each line of output appears to be a group of input lines having the same group_id, part_type_id, and part_desc_id (I'm guessing just, this only has never stated), so I used GROUP BY to get 1 row of output for every input lines.

• Truncate output of analytical function?

  For example this query:

  Select month, sum (tot_sales) monthly_sales,.

  AVG (Sum (tot_sales)) (any order by month

  between 1 above and 1 below) rolling_avg

  orders

  where year = 2001 and region_id = 6

  Group by month;

  gives me an output which includes several decimal places for the rolling_avg column.

  Is there a way to truncate this? I tried to use the rounded outside the analytical function and surely enough, it didn't work. I can't think otherwise.

  You can use an external selection on the result of this query

  select trunc(rolling_avg) from
  ( rolling_avg query);
  

• Nth salary using the analytic function

  I use under function to calculate second highest with empno and deptno salary.

  Is it possible to get the same result with another query without using Assembly only analytical functions condition.using and windows function is possible to get the desired output?

  SELECT e.empno,

  e.DEPTNO,

  tmp. SAL as second_higher_salary

  FROM emp e,.

  (SELECT Empno,

  DEPTNO,

  SAL,

  DENSE_RANK() (PARTITION BY deptno ORDER of sal) AS rnk

  WCP

  ) tmp

  WHERE tmp.deptno = e.deptno

  and tmp.rnk = 2

  EMPNO DEPTNO SAL

  ---------- ---------- ----------

  7934 10 2450

  7782 10 2450

  7839 10 2450

  7876 20 1100

  7369 20 1100

  7902 20 1100

  7788 20 1100

  7566 20 1100

  7900 30 1250

  7844 30 1250

  7654 30 1250

  7521 30 1250

  7499 30 1250

  7698 30 1250

  7900 30 1250

  7844 30 1250

  7654 30 1250

  7521 30 1250

  7499 30 1250

  7698 30 1250

  Here's my solution:

  Select empno,

  DEPTNO,

  FIRST_VALUE (sal) (PARTITION BY deptno ORDER by sal desc)

  de)

  SELECT EmpNo,

  DEPTNO,

  Decode (DENSE_RANK () OVER (PARTITION BY deptno order by sal desc), 1,-sal, sal) sal

  WCP

  )

  /

  EMPNO

  DEPTNO FIRST_VALUE (SAL) OVER (PARTITIONBYDEPTNOORDERBYSALDESC)

  ---------- ---------- -----------------------------------------------------

  	7782	10	2450
  	7934	10	2450
  	7839	10	2450
  	7566	20	2975
  	7876	20	2975
  	7369	20	2975
  	7788	20	2975
  	7902	20	2975
  	7499	30	1600
  	7844	30	1600
  	7654	30	1600
  	7521	30	1600
  	7900	30	1600
  	7698	30	1600

• Why the different values for an analytic function of the same group/game

  I have the suite of table I'll be using.

  Select * from table1;

  REC_ID | STATUS | DATE_FROM | DATE_TO

  1. C | 7 January 2015 |

  2. H | December 3, 2014. 6 January 2015

  3. H | October 3, 2014. December 2, 2014

  4. H | May 30, 2014. October 2, 2014

  5. H | May 29, 2014 | May 29, 2014

  6. H | April 16, 2014 | May 28, 2014

  7. H | Tuesday, April 25, 2007 April 15, 2014

  INSERT statement if you need.

  TOGETHER TO DEFINE

  CREATE THE TABLE1 TABLE:

  (

  NUMBER OF REC_ID,

  VARCHAR2 (1 BYTE) STATUS NOT NULL,.

  DATE_FROM DATE NOT NULL,

  DATE OF DATE_TO

  );

  Insert into TABLE1

  (REC_ID, STATUS, DATE_FROM)

  Values

  (1, 'C', TO_DATE (7 JANUARY 2015 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'));))

  Insert into TABLE1

  (REC_ID, STATUS, DATE_FROM, DATE_TO)

  Values

  (2, 'H', TO_DATE (3 DECEMBER 2014 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'), TO_DATE (6 JANUARY 2015 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'));))

  Insert into TABLE1

  (REC_ID, STATUS, DATE_FROM, DATE_TO)

  Values

  (3, 'H', TO_DATE (3 OCTOBER 2014 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'), TO_DATE (2 DECEMBER 2014 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'));))

  Insert into TABLE1

  (REC_ID, STATUS, DATE_FROM, DATE_TO)

  Values

  (4, 'H', TO_DATE (MAY 30, 2014 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'), TO_DATE (2 OCTOBER 2014 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'));))

  Insert into TABLE1

  (REC_ID, STATUS, DATE_FROM, DATE_TO)

  Values

  (5, 'H', TO_DATE (29 MAY 2014 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'), TO_DATE (29 MAY 2014 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'));))

  Insert into TABLE1

  (REC_ID, STATUS, DATE_FROM, DATE_TO)

  Values

  (6, 'H', TO_DATE (APRIL 16, 2014 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'), TO_DATE (28 MAY 2014 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'));))

  Insert into TABLE1

  (REC_ID, STATUS, DATE_FROM, DATE_TO)

  Values

  (7, 'H', TO_DATE (APRIL 25, 2007 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'), TO_DATE (APRIL 15, 2014 00:00:00 ',' DD/MM/YYYY HH24:MI:SS'));))

  COMMIT;

  I will exercise more analytical query...

  Select rec_id date_from, date_to, status,

  min (date_from) over (partition by order of status by date_from desc) min_dt_from_grp,

  ROW_NUMBER() over (partition by order of status by date_from desc) rownumberdesc,

  ROW_NUMBER() over (partition by order of status by ASC date_from) rownumberasc

  FROM table1;

  the query result

  REC_ID | DATE_FROM | DATE_TO | STATUS | MIN_DT_FROM_GRP | ROWNUMBERDESC | ROWNUMBERASC

  1. 7 January 2015 | C | 7 January 2015 | 1. 1

  2. December 3, 2014. 6 January 2015 | H | December 3, 2014. 1. 6

  3. October 3, 2014. December 2, 2014 | H | October 3, 2014. 2. 5

  4. May 30, 2014. October 2, 2014 | H | May 30, 2014. 3. 4

  5. May 29, 2014 | May 29, 2014 | H | May 29, 2014 | 4. 3

  6. April 16, 2014 | May 28, 2014. H | April 16, 2014 | 5. 2

  7. Tuesday, April 25, 2007 April 15, 2014. H | Tuesday, April 25, 2007 6. 1

  If you look at the output above, it dates back in the min_dt_from_grp column.

  MY question is if the analytical function calculates for a particular/set group, which is by statute and for what min (date_from) partition is 25-apr-2007 for the GROUP H (Status column), then why I have different values returned by the query above in the min_dt_from_grp column.

  Hello

  Because you have specified an ORDER BY clause for the analytical function. In doing so, you calculate the rows on a window. Since you have not specified a windowing clause, the default applies:

  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW

• Analytical functions: FIRST vs FIRST_VALUE

  Hello

  Can someone please help me understand the difference between PRIME and FIRST_VALUE in Anaytic functions.

  I tried below 2 queries, but I see the same output. The only difference I see is that the field of the SAL is ordered FIRST_VALUE, but not the FIRST.

  SELECT ename,

  DEPTNO,

  SAL,

  MIN (SAL) keep (dense_rank FIRST

  ORDER BY sal) by (deptno partition) FIRST

  EMP;

  SELECT ename,

  DEPTNO,

  SAL,

  FIRST_VALUE (SAL) over (partition BY deptno arrested by sal) FIRST

  EMP;

  With the help of: Windows 8.1

  Database Oracle 12 c Enterprise Edition Release 12.1.0.1.0 - 64 bit Production

  PL/SQL Release 12.1.0.1.0 - Production

  "CORE 12.1.0.1.0 Production."

  AMT for 64-bit Windows: Version 12.1.0.1.0 - Production

  NLSRTL Version 12.1.0.1.0 - Production

  Hello

  Here is an example of when you can use the FIRST analytic function.

  Say you want the average sal for each Department, but only for the first year (taken from the hiredate column) in the Department (i.e., the column called f in the query below).

  WITH got_hireyear AS

  (

  SELECT deptno and ename, sal, hiredate

  EXTRACT (YEAR FROM hiredate) AS hireyear

  FROM scott.emp

  )

  SELECT deptno, hireyear, hiredate, ename, sal

  AVG (sal) DUNGEON (DENSE_RANK FIRST ORDER BY hireyear)

  COURSES (PARTITION BY deptno

  ) In the FORM f

  FIRST_VALUE (sal) over (PARTITION BY deptno

  ORDER BY hireyear

  ) AS fv

  AVG (sal) over (PARTITION BY deptno

  hireyear

  ), A

  OF got_hireyear

  ORDER BY deptno

  hireyear

  ename

  ;

  Output:

  HIREYEAR ENAME SAL HIREDATE DEPTNO F FV HAS
  ------ ---------- ----------- ---------- ------ --------- ------ ---------
  10 1981 9 June 1981 CLARK 2450 2450 3725,00 3725.00
  10 1981 17 November 1981 KING 5000 3725,00 2450 3725.00
  10 1982 23 January 1982 MILLER 1300 3725,00 2450 1300.00

  20, 1980, 17 December 1980 SMITH 800 800.00 800.00 800
  20, 1981, 3 December 1981 FORD 3000 800.00 800 2987.50
  20, 1981, 2 April 1981 JONES 2975 800.00 800 2987.50
  20, 1987, 23 May 1987 ADAMS 1100 800.00 800 2050.00
  20, 1987, 19 April 1987 SCOTT 3000 800.00 800 2050.00

  30 1981 20 February 1981 ALLEN 1600 1566.67 950 1566.67
  May 30 1981 1st 1981 BLAKE 2850 1566.67 950 1566.67
  December 30 1981 3 1981 JAMES 950 1566.67 950 1566.67
  30 1981 28 - sep - 1981 MARTIN 1250 1566.67 950 1566.67
  30-08 - sep - 1981 1981 TURNER 1500 1566.67 950 1566.67
  30 1981 22 February 1981 WARD 1250 1566.67 950 1566.67

  The analytical FIRST_VALUE function can do (except in the very special case where only 1 row has the lowest hireyear, as in deptno = 20).  AVG analysis can do (except in the very special case that all lines have the same hireyear as in deptno = 30).

• without analytic function

  Hello experts.

  I have data similar to what follows below

  create table t1
  (
    id number(30),
    description varchar(4000)
  
  
  );
  
  insert into t1 values (1, 'zone');
  insert into t1 values (2, 'small');
  
  
  create table t2
  (
     id number(30),
     place varchar(4000),
     info varchar(4000)
  
  );
  
  insert into t2 values (1, 'USA', 'Class U');
  insert into t2 values (1, 'Mexico', 'Class M');
  insert into t2 values (2, 'Germany', 'Class G');
  

  I need help with something similar to what follows below without using any analytic function

  Description of the ID info Place

  1 box USA class U

  Mexico 1 M class

  2 small Germany class G

  Any help is appreciated. Thank you

  Hello

  user13328581 wrote:

  ... I use an older version of oracle. Oracle 7.

  Normally, your developers are older than your software.

  You should be able to do what you want with a self-join on t2; a copy (d) should be displayed, and the other copy (c) contains all related values you need for comparison.

  SELECT t2d.id

  DECODE (t2d.place

  MAX (t2c.place)

  t1.description

  ) AS description

  t2d.place

  t2d.info

  FROM t1

  , t2 t2d - display

  t2 t2c - compare

  WHERE t1.id = t2d.id

  AND t2d.id = t2c.id

  GROUP BY t1.description

  t2d.id

  t2d.place

  t2d.info

  ORDER BY t2d.id

  t2d.place DESC

  ;

  Output:

  ID DESCRIPTION PLACE INFO

  ---------- -------------------- -------------------- --------------------

  1 box USA class U

  Mexico 1 M class

  2 small Germany class G

  I've tested this in Oracle 11, but it should work in Oracle 7.

  If this isn't the case, you may need to create a view.

• Analytic Functions

  Hello

  Don't you know that it is the analytical function used to access an earlier date for example table RRODUCT

  Date	amount CN code
  25/09/2012	1000	20
  26/09/2013	2000	15
  27/09/2011	1000	8
  28/09/2012	2000	12
  29/09/2013	2000	2
  30/09/2004	1000	4

  and this table contains more than 1000 lines in difeerent years now, I want to get the amount in a given year and the previous year like this 20 + 15 + 12 + 4

  I need analytical control that find the previous year 2012 if my year 2013 or find out if 2010 my 2011 yeaar

  You can use the YEAR-1 right? SHIFT of analytic function can be used to access the previous line. Your condition is to get the value of the previous year and previous row not. If this isn't what you are looking for then can you post output necessary for data provided?

• analytical functions in oracle

  Hi I am new to oracle analytical functions

  I do not know how to use and where to use real-time, please send me the useful any url for it.

  I read in the Oracle Documentation , but it's not understand for me.

  Please provide me with any other useful URL, I'll read to those.if you have examples, please report it in the present.

  Thank you

  Check this box:

  ORACLE-BASE - Analytic Functions

  Analytical functions for example. Oracle FAQ

• Drive the analytic function

  
  Hello

  I have a doubt about this analytical function to lead,

  I have this table,

  create table test3 (no number, name varchar2 (30));

  
  Insert into TEST3 (NO, NAME) values (1, 'fen');
  Insert into TEST3 (NO, NAME) Values (3, 'DEN');
  Insert into TEST3 (NO, NAME) values (2, 'Sun');
  Insert into TEST3 (NO, NAME) values (2, 'sen');
  Insert into TEST3 (NO, NAME) values (1, 'end');
  COMMIT;

  I put like that with this request.

  
  Select lead don't (don't) over (partition by any order of name), name of test3.

  NO NAME

  1 fen
  end
  2 Sun
  Sen
  DEN

  But I need as below output, I am unable to get the third 'NO' that has a value, I get null for that, even if I partitioned
  by the 'NO '.

  NO NAME

  1 fen
  end
  2 Sun
  Sen
  3 DEN

  Please clear my doubt.

  Thanks in advance.

  Like this

  Select decode (NWR, 1, no, null) no

  name

  de)

  Select row_number() over (partition by any order by name) rno

  None

  name

  of test3

  )