help the join of two tables

Similar Questions

• How it warns Oracle to use an index for the join of two tables...

  How to prevent the Oracle to use an index for the join of two tables to get a view online that is used in an update statement?
  
  O.K. I think I should explain what I mean:
  
  When you join two tables that have many entries sometimes there're better is not to use an index on the column that is used as a criterion to join.
  
  I have two tables: table A and table B.
  
  Table A has 4,000,000 entries and table B has 700,000 entries.
  
  I have a join of two tables with a numeric column as join criteria.
  
  There is an index on this column in A table.
  
  So I instead of
  

    where (A.col = B.col)

  I want to use
  

    where (A.col+0 = B.col)

  in order to avoid Oracle using the index.
  
  When I use the join in a select query, it works.
  
  But when I use the join as inline in an update statement I get the error ORA-01779.
  
  When I remove the '+ 0' the update statement works. (The column is unique in table B).
  
  Any ideas why this happens?
  
  Thank you very much in advance for any help.
  
  Hartmut cordially

  You plan to use a NO_INDEX hint as shown here: http://www.psoug.org/reference/hints.html

• How do good group when the join of two tables?

  Hi all
  
  The slot using join query, I'd like to get an output will depend on the number of 'Classes' (for example: if I want the result for 15 classes, then, he must return to 16 lines from 0 to 16).
  I n query below, I use the group as

  "GROUP BY report_parameters.report_parameter_value  "

  .
  
  Error that says "this is not group by expression.
  
  If I have commented here, here he returns 320 rows instead of 16 ranks.
  
  Could someone help me?
  
  

   SELECT 'SUM('
      || 'CASE '
      || 'WHEN edr_class_by_gvw_report_data.bin_id >= ' || report_range_parameters.report_parameter_min_value || ' 
           AND edr_class_by_gvw_report_data.bin_id  < ' || report_range_parameters.report_parameter_max_value || '
          THEN edr_class_by_gvw_report_data.bin_value '    
      || 'ELSE 0 '
      || 'END '
      || ') "Class ' || report_parameters.report_parameter_value || '" '    
        FROM report_parameters
        JOIN report_range_parameters
          ON report_parameters.report_parameter_id = report_range_parameters.report_parameter_id 
       WHERE report_range_parameters.report_parameter_id    = 2316    
         AND report_range_parameters.report_parameter_group = 'GVW_GROUP'
         AND report_range_parameters.report_parameter_name  = 'GVW_NAME'
         AND report_parameters.report_parameter_group = 'CLASS'
         AND report_parameters.report_parameter_name  = 'CLASS' 
       GROUP BY
        report_parameters.report_parameter_value  
       ORDER BY  report_range_parameters.report_parameter_min_value ASC;

  Thank you.
  
  Published by: user10641405 on June 11, 2009 12:23
  
  Published by: user10641405 on June 11, 2009 12:30

  Hello

  Let me explain what I'm trying to do.
  I want to write a query that produces this output:

  SUM(CASE WHEN edr_class_by_gvw_report_data.gvw >= 0 AND edr_class_by_gvw_report_data.gvw  < 5 THEN edr_class_by_gvw_report_data.gvw_count ELSE 0 END ) "Class 0"
  SUM(CASE WHEN edr_class_by_gvw_report_data.gvw >= 5 AND edr_class_by_gvw_report_data.gvw  < 10 THEN edr_class_by_gvw_report_data.gvw_count ELSE 0 END ) "Class 1"
  SUM(CASE WHEN edr_class_by_gvw_report_data.gvw >= 10 AND edr_class_by_gvw_report_data.gvw  < 15 THEN edr_class_by_gvw_report_data.gvw_count ELSE 0 END ) "Class 2"
  SUM(CASE WHEN edr_class_by_gvw_report_data.gvw >= 15 AND edr_class_by_gvw_report_data.gvw  < 20 THEN edr_class_by_gvw_report_data.gvw_count ELSE 0 END ) "Class 3"
  SUM(CASE WHEN edr_class_by_gvw_report_data.gvw >= 20 AND edr_class_by_gvw_report_data.gvw  < 25 THEN edr_class_by_gvw_report_data.gvw_count ELSE 0 END ) "Class 4"
  

  using data from tables report_parameters and report_range_parameters, which are like your tables.
  Right now, I don't have report_parameters and report_range_parameters tables.
  I need to create and put the data in them that is like your data.
  If I have the same data you have, and if I can produce the results that you want from the data, so I'll post my query, and you can use it.

  I do not see how to INSERT statements like this:

  INSERT INTO "class_by_gvw_report_data"
            SELECT site_id,
                site_lane_id,
               site_direction_id,
              site_direction_name,
                bin_start_date_time,
                bin_end_date_time,
                bin_id,
              bin_value
           FROM "class_by_gvw_bin_data"
  

  can help me. Is the table "class_by_gvw_report_data" invloved in this problem? Is this the same as report_parameters or report_range_parameters? If Yes, I need to create it, and put the data into it, so to use the above statement I need all data of "class_by_gvw_bin_data".

  I need to have something that I can run, so that my paintings will have sample data which would result in the desired output.
  I need the CREATE TABLE statements, but I can probably guess what they should be if I have your data. If this isn't the case, I will seek further clarification later.
  I can't guess what your data, and why is it causing problems. If I just do a few data, LII is virtually no chance he's going against hepatitis has a relationship between the tables that are causing you problems of the same nature.

  Please post INSERT statements that I can run and produce the same type of data that is causing problems.

• Kindly help me with the request to find the data in two tables

  Hello Guru
  
  Kindly help me to recover the data from two tables-
  
  BASEBALL
  LEGAL_ENT_ID (PK)
  GAME_ID (FK)
  LEGAL_ENT_NM
  INACTIVE_DT
  DATE OF INS_TS
  INS_LOGIN
  DATE OF UPD_TS
  UPD_LOGIN
  
  
  FOOTBALL
  GAME_ID (PK)
  BRKR_NM,
  BRKR_ISR_ID
  BROKER_SYMBOL
  INACTIVE_DT
  BRKR_SWIFT_FLG
  BRKR_INTERNAL_FLG
  BRKR_CATEGORY
  UPD_TS
  MINORITY_FLG
  BROKER_TYP
  STATUS
  INS_TS
  INS_LOGIN
  UPD_LOGIN
  APP_USER
  ACTIVE_FLG
  
  and if I want fecth data from these two tables according to the following condition then it is fine with the suite of applications.
  
  1 select distinct values only table of BASEBALL by using the following query.
  
  SELECT DISTINCT B.GAME_ID as 'CLEARING GAME ID', B.BRKR_NM "NAME of THE GAME of COMPENSATION" OF BASEBALL A, FOOTBALL B WHERE A.BROKER_RELATION_CD IN ('FUTBRKR1', 'FUTBRKR2') AND A.GAME_ID = B.GAME_ID
  
  2 Select all the table BRKR_NM OF FOOTBALL as well by using the query - next
  
  SELECT GAME_ID "RUNNING GAME ID", 'NAME OF THE GAME OF EXECUTION' BRKR_NM SOCCER
  
  Now, my query is that--
  
  I want a query that gives me a combination of above mentioned queries... and if I tried to use Union or Union All, then she is not giving me the result as expected.
  
  I like the result to look like who has a few conditions such as -
  1 - the records in the table Football are high vs Baseball table because there is no condition to filter the records of the Football.
  2 - football is a superset of records and Baseball is a subset.
  3 - COMPENSATION NOM_JEU and RUNNING NOM_JEU may return the same values as well.
  
  I want the result to be in the following form-
  
  EXECUTION ID GAME | NAME OF THE GAME TO RUN. COMPENSATION ID GAME | DELETE THE NAME OF THE GAME.
  2123 test1 2345 test5
  2456 test10 2456 test10
  
  
  Thanks in advance. Kindly help me.
  
  Published by: user555994 on January 4, 2011 23:48

  In the output you want.
  All the values of baseball;
  Values of football that are matched;
  But on what condition you want to match?

• problem with join of two tables

  Hi, consider the following data

  WITH data AS
  (
    SELECT 123 cid, 'aaa' isi, 'kkk' sud, 'ttt' ri FROM dual UNION ALL 
    SELECT 222 cid, 'bbb' isi, 'gggg' sud, 'hhh' ri FROM dual
  
  ) ,
  data2 AS 
  (
    SELECT 'aaa' isi, 'yyy' sud, 'ooo' ri FROM dual UNION ALL 
    SELECT 'qqq' isi, 'ggg' sud, 'ooo' ri FROM dual UNION ALL 
    SELECT 'uuu' isi, 'ppp' sud, 'ttt' ri FROM dual UNION ALL
     SELECT 'ppp' isi, 'mmm' sud, 'nnn' ri FROM dual 
  
  
  )

  what I want to do, is to join data2 with data by isi, ri or southern id table and produce this output.
  

   cid  txt
   ===  ====
   123  aaa
   222  ggg
   123  ttt

  It's how I got the above output:
  first try to join isi in database2 with isi in "features" and discover if line matches. If this is the case, display the cid of the data table and the use of the value to match.
  e.g. in the first line of table data2, we can see that isi = aaa matches line an isi data table. If the output displays 123 and value aaa.
  
  If the rank table two of the Data2 isi = qqq. When join them with the data table, we find not all isi with qqq. in this case, it must join with column of South. We can see that South = ggg data2 games
  the second line in the table of output so will bee 222 and value ggg.
  
  now, take a look at the third row in Database2. ISI = uuu is not found in the data table when join them. then try to join to the South. South = ttt is also not found in any row of the data table. so join with ri. We
  can see that ri = ttt data2 matches with ri = ttt in the table of data online 1. Therefore, we display the value.
  
  can someone help me write a sql query that joins these two tables by isi. If no line found then join South, if no found rows then join in ri? Thank you

  Hello

  elmasduro wrote:
  Hi Frank, data2.sud = 'Gay' (4 characters) assume to be South = "ggg". by mistake, I type extra g.

  I have another question about the request. What happens if I want to bring rows of data.2 even if they do not exist in the data table for the entire column was join?
  for example, I want to show this:

  cid  txt
  ===  ====
  123  aaa
  222  ggg
  123  ttt
  ppp  --row from data2
  

  the columns of the last row of data.2 does not match any column in the data table. in this case, I want to make but cid will be null. I tried outer join on your request, but it looks like I can not clause or with outer join

  SELECT     d1.cid
  ,     CASE
            WHEN  d1.isi = d2.isi  THEN  d2.isi
            WHEN  d1.sud = d2.sud  THEN  d2.sud
                                          ELSE  d2.ri
       END     AS txt
  FROM data     d1
  JOIN     data2     d2  ON     d1.is(+)i     = d2.isi
                OR     d1.sud(+)     = d2.sud
                OR     d1.ri(+)     = d2.ri
  ;
  

  How can I re - write the query for this case? Thanks again for your help

  Here is the outer join syntax:

  SELECT     d1.cid
  ,     CASE
            WHEN  d1.isi = d2.isi  THEN  d2.isi
            WHEN  d1.sud = d2.sud  THEN  d2.sud
            WHEN  d1.ri  = d2.ri   THEN  d2.ri
                                          ELSE  d2.isi
       END     AS txt
  FROM          data2     d2
  LEFT OUTER JOIN     data     d1  ON     d1.isi     = d2.isi
                         OR     d1.sud     = d2.sud
                         OR     d1.ri     = d2.ri
  ;
  

  The + sign for outer joins only works with the old join syntax, non-ANSI. Do not try to mix the two different ways to do joins.

  Not to mention that the outer join, don't forget to change the CASE expression, to include the new possibility of any columns 3 join matching.

• Join of two tables in two different schemas

  Hi all
  
  I have an obligation to join two tables on two different schemas. How to join these two tables in the object view.
  
  Thanks in advance.
  
  Concerning
  Kaushik Guillaumin

  You can do just that using schema name in the +' view object.table name ' + according to the query object and also grant select the another schema to this schema user

  ex
  you need schem is test and another Act you need to a view object based on the test to join a table on shcema Act

  you write semply object sql view code:

  Act.table name

  and you can also give him select statement on Bill schem table to test

  concerning

• display the data in two tables.

  Hi considers the following data

  WITH table1 AS
  (
    SELECT 111 userid,  To_Date('7/31/2010','mm/dd/yyyy') dt  FROM dual UNION ALL
    SELECT 111 userid,  To_Date('8/1/2010','mm/dd/yyyy') dt  FROM dual UNION all
    SELECT 111 userid,  To_Date('8/2/2010','mm/dd/yyyy') dt FROM dual UNION ALL
    SELECT 111 userid,  To_Date('8/3/2010','mm/dd/yyyy') dt  FROM dual UNION ALL
    SELECT 111 userid,  To_Date('8/4/2010','mm/dd/yyyy') dt FROM dual UNION ALL
    SELECT 111 userid,  To_Date('8/5/2010','mm/dd/yyyy') dt  FROM dual UNION ALL
  
    SELECT 222 userid,  To_Date('2/28/2010','mm/dd/yyyy') dt  FROM dual UNION all
    SELECT 222 userid,  To_Date('3/5/2010','mm/dd/yyyy') dt  FROM dual UNION all
  
  ),
   mydates AS
  (
   SELECT To_Date('7/31/2010','mm/dd/yyyy') dt1, To_Date('8/4/2010','mm/dd/yyyy') dt2 FROM dual  UNION ALL 
   SELECT To_Date('2/28/2010','mm/dd/yyyy') dt1, To_Date('3/5/2010','mm/dd/yyyy') dt2 FROM dual 
  )

  I want to join these two tables and result the following
  

  DT        DT2
  7/31/2010 8/04/2010
  8/01/2010  8/01/2010
  8/02/2010  8/02/2010
  8/03/2010  8/03/2010
  8/04/2010  8/04/2010
  8/05/2010  8/05/2010
  
  2/28/2010  3/5/2010
  3/5/2010   3/5/2010

  Basically, I join two tables, take dt from table1 and look into mydates. If the data match then display dt and DM2.
  If the date in table1 does not match date in t1d in mydates, then display the data but dt and DM2 there same date.
  
  for example,.
  
  7/31 in table1 is 7/31 in mydates so I show 7/31 dt and DM2 as 8/4(from mydates).
  now 8/01 does not match all lines in my dates so dt should be 8/01 and T2D should be 8/01. same logic applies to the other lines
  
  can someone write a query that gives the above result? Thank you

  Hello

  If you want all lines of table1 (attached to mydates when this is possible, but even when there is no match) then use an outer join:

  SELECT     t.dt
  ,     NVL (m.dt2, t.dt)     AS dt2
  FROM          table1     t
  LEFT OUTER JOIN     mydates     m     ON     t.dt     = m.dt1
  ORDER BY     t.dt
  ;
  

• Please, help me to join of two tables?

  Hello..

  I'm using oracle 11g.

  I have two tables with below description

  1.esb_v_study_personnel

  study_code_alias varchar2,

  Site_ID number,

  role_at_site_level_desc varchar2

  2 esb_v_study_site

  study_code_alias varchar2

  Site_ID

  I'm counting the role_at_site_level_desc where it is'Monitor' or 'primary monitor'

  So I wrote the following query

  Select study_code_alias, site_id,.

  no_of_study_monitors (role_at_site_lvl_desc)

  esb_v_study_site_personnel

  study_code_alias IN & arg_trial_code

  role_at_site_lvl_desc in ()"Monitor" "Main screen"()

  Group of study_code_alias, study_site_id

  order by study_site_id

  using the above, I'm getting lines of 1617.

  but I want to map the resultant site_id

  esb_v_study_site with lines of 1647. If I want to get all the site_id in esb_v_study_site table mapping to above query.

  Can you guide me on this point.

  I tried with a left outer join, but still iam getting lines of 1617.

  Select study_code_alias,

  no_of_study_monitors (role_at_site_lvl_desc)

  esb_v_study_site_personnel

  study_code_alias IN & arg_trial_code

  role_at_site_lvl_desc in ()"Monitor" "Main screen"()

  Group of study_code_alias, study_site_id

  order of study_site_id) a

  LEFT OUTER JOIN

  ON a.trial_no = d.trial_no et a.study_site_id = d.study_site_id

  où d.study_code_alias in & arg_trial_code

  Group by d.study_code_alias, d.study_site_id, a.no_of_study_monitors

  order by d.study_site_id
  

  Please help me on this?

  I'm not quite sure, because your query seems to us of small missing pieces. He was probably down during some copy & paste on this forum.

  I guess the reason is that the left join is performed after the group where the count on the column does not count NULL values that might be created by the outer join.

  Maybe you can start with the following query and give us the results and tell us if it is always wrong and what the outcome would be expected.

  example (not tested the syntax)

  select  d.study_code_alias
      ,d.site_id
     , count(a.role_at_site_lvl_desc) no_of_study_monitors
     , count(distinct a.role_at_site_lvl_desc) no2
     , count(*) no3
  from esb_v_study_site d
  left join esb_v_study_site_personnel a on a.trial_no=d.trial_no and a.study_site_id=d.study_site_id and a.role_at_site_lvl_desc in ('Field Monitor','Primary Monitor')
  where d.study_code_alias IN (&arg_trial_code)
  group by d.study_code_alias,d.study_site_id
  order by d.study_site_id;
  

  BTW: If you read the FAQ in the upper right corner, here, he said how well sql zip code search.

• help in registration of the records from two tables

  HI: I have two tables joined the first field. The field is the primary key in the first table. Need help listing records from both tables with each a line/record results.
  

  create table EVENTS (
  event_key varchar2(64) primary key,
  event_description varchar2(64),
  create_time int
  );
  
  
  create table EVENT_UPDATES (
  event_key varchar2(64) NOT NULL ,
  update_description varchar2(64),
  update_time int
  );
  
  
  insert into EVENTS values('Event1', 'This is event1', 1);
  insert into EVENT_UPDATES values('Event1', 'Ticket created', 3);
  insert into EVENT_UPDATES values('Event1', 'Event cleared', 10);
  insert into EVENTS values('Event2', 'This is event2', 4);
  insert into EVENT_UPDATES values('Event2', 'Ticket created', 6);
  insert into EVENT_UPDATES values('Event2', 'Event cleared', 8);

  I want to print each record in the table of EVENTS such as a line and the corresponding records in EVENT_UPDATES as a line like this record
  

  Event1   1     This is event1
              3     Ticket created
              10   Event cleared
  Event2   4     This is event2
              6     Ticket created
              8     Event cleared

  TIA
  Ravi

  select  case weight
            when 1 then event_key
          end key,
          time_val,
          description
    from  (
            select  event_key,
                    create_time time_val,
                    event_description description,
                    1 weight
              from  events
           union all
            select  event_key,
                    update_time,
                    update_description,
                    2 weight
              from  event_updates
          )
    order by event_key,
             weight
  /
  
  KEY          TIME_VAL DESCRIPTION
  ---------- ---------- -------------------------
  Event1              1 This is event1
                      3 Ticket created
                     10 Event cleared
  Event2              4 This is event2
                      6 Ticket created
                      8 Event cleared
  
  6 rows selected.
  
  SQL> 
  

  SY.

• Delete rows in a table when the columns from two tables match

  Hello

  I have following two tables.

  ===========================================

  create the table empbooth as

  (

  Select 1 empid, 1 double cabin Union all the

  Select option 2, Union 1 double all the

  Select 3, Union 1 double all the

  Select option 4, Union 2 double all the

  Select option 5, 2 double

  );

  create the table attsht as

  (

  Select 1 empid, 240 reg, 0 unpaid all double union

  Select option 2, reg 200, 0 unpaid of all the double union

  Select 3, 240 reg, 0 unpaid all double them union

  Select 4 480 reg, 0 unpaid all double union

  Select 5 240 reg, unpaid double 0

  );

  =================================================

  I want to remove rows from attsht where corresponding booth (which is stored in the empbooth table) is 1.

  The condition is 'where attsht.empid = empbooth.empid and empbooth.booth = 1 '.

  I use oracle 10g.

  Help, please

  delete from attsht where a.empid in (select b.empid from empbooth b where b.booth = 1)

  or

  remove from attsht a

  where exists (select null

  of empbooth b

  where b.booth = 1

  and b.empid = a.empid)

• Take the difference of two tables

  Hello

  I have two tables where in I need to take the difference between the two columns of different tables and show as decimal below:

  Table A

  Name, salary

  x 10.5

  y - 10.32

  z 5

  Table B

  Name, salary

  x 10.5

  y - 10.32

  z 3

  a 12

  Output:

  Name_A, Name_B, salary, remarks

  x, x, 0, no diff

  y, y, 0, no diff

  z, z, 2 Diff is here

  , one, no data, no data from the previous

  Hello

  Try ythis:

  with table_a as
  (
  SELECT 'X' NAME, SALARY, 10.5 DUAL UNION ALL
  SELECT THE NAME OF 'Y',-10.32 SALARY OF DOUBLE UNION ALL
  SELECT THE NAME OF 'Z', 5 DOUBLE SALARY
  )
  table_B as
  (
  SELECT 'X' NAME, SALARY, 10.5 DUAL UNION ALL
  SELECT THE NAME OF 'Y',-10.32 SALARY OF DOUBLE UNION ALL
  SELECT THE NAME OF 'Z', 3 DOUBLE UNION ALL SALARIES
  SELECT 'A' NAME, SALARY 12 DUAL FROM
  )
  SELECT
  COALESCE(A.NAME,B.NAME) NAME
  , NVL (TO_CHAR (A.SALARY - B.SALARY), 'NO DATA') SALARY
  , CASE WHEN A.SALARY - B.SALARY = 0 THEN 'NO DIFFERENCE '.
  WHEN B.SID IS NULL, "NO DATA OF THE PREVIOUS.
  WHERE B.NAME IS NULL, "NO DATA FROM NEXT.
  ANOTHER 'DIFFERENCE IS THERE.
  END NOTE

  Of
  TABLE_A HAS
  TABLE_B FULL OUTER JOIN B ON (B.SID = B.NAME)
  ;

  NAME SALARY NOTE
  ---- ---------------------------------------- ---------------------
  X 0 NO DIFFERENCE
  Y 0 NO DIFFERENCE
  Z 2 THE DIFFERENCE IS THERE
  A NUMBER OF DATA NO DATA FROM THE PREVIOUS

  Kind regards

  Peter

• Select the data in two tables

  Hello

  I am trying to build a query WITH, but I can't seem to make it work:

  WITH P1 AS (SELECT OT_VALUE

  OF CSD_OPEN_VERY_HIGH_INCIDENTS VHIGH

  WHERE OT_VALUE > = 0

  ). P2 AS (SELECT OT_VALUE

  OF HIGH CSD_OPEN_HIGH_INCIDENTS

  WHERE OT_VALUE > = 0

  ), SELECT VHIGH. OT_VALUE, TOP. OT_VALUE

  P1 P2 JOIN INTERNALLY. RATING = P2. RANKING

  The two tables have the same column names.

  I want to only return a set of results if the two columns (OT_VALUE) contain in reality 1.

  Select this check box. This is a job for all four images. This will return the line to the following combinations. 0.0 and 0.1 and 1.0 and 1.1. Importance is 1.2.  Let me know if you face any problem

  SELECT CASE WHEN ((VH_OT_VAL = 0 ET H_OT_VAL = 0) OR (VH_OT_VAL = 1 AND H_OT_VAL = 0) OR (VH_OT_VAL = 0 AND H_OT_VAL = 1) or (VH_OT_VAL = 1 AND H_OT_VAL = 1)) 1

  ANOTHER ACE OF NULL TERMINATOR OT_VAL

  DE)

  SELECT H.OT_VALUE H_OT_VAL,

  VH. OT_VALUE VH_OT_VAL

  OF CSD_OPEN_VERY_HIGH_INCIDENTS VH.

  CSD_OPEN_HIGH_INCIDENTS H

  WHERE NVL (VH. CLASSIFICATION, 0) = NVL(H.CLASSIFICATION,0)

  AND VH. IMPORTANCE IN (1,2)

  AND H.IMPORTANCE IN (1,2)

  AND NVL (VH. OT_GROUP, 0) = NVL(H.OT_GROUP,0)

  AND VH. IMPORTANCE = H.IMPORTANCE

  AND VH. TIME_STAMP = H.TIME_STAMP

  );

• The most elegant way to get the difference between two tables - not least!

  Hello
  
  
  Simplified example of what I'm trying to achieve - I have two tables ORIGINAL and REVISED.
  
  
  My aim is to compare the two, such as; -
  
  
  When there is data in the two tables I get the difference between the Budget column, and if there is no difference, so I don't want no lines.
  
  When data exists in the ORIGINAL, but not in review, I want to the inverse of the current value of the Budget column.
  
  Where the data exist in REVISED I want the REVISED value.
  
  I can see how I can do this, see below, but is there a more elegant solution?
  
  
  
  
  Data for the ORIGINAL table
  

  select '801040' entity, '2186' expense_type, 234000 budget
  from dual
  union all
  select '801040' entity, '3001' expense_type, 1000 budget
  from dual
  union all
  select '801040' entity, 'P132' expense_type, 34000 budget
  from dual
  union all
  select '801040' entity, 'P135' expense_type, 43000 budget
  from dual

  Data for the REVISED table
  

  select '801040' entity, '2186' expense_type, 235000 budget
  from dual
  union all
  select '801040' entity, 'P132' expense_type, 34000 budget
  from dual
  union all
  select '801040' entity, 'P139' expense_type, 56000 budget
  from dual

  Desired output
  
  
  
  ENTITY EXPENSE_TYPE DIFFERENCE
  ------ ------------ ----------
  801040 2186 1000
  801040 3001-1000
  801040 P135-43000
  801040 P139 56000
  
  5 selected lines.
  
  
  
  Code current to achieve this, is there a better way?
  

  select original.entity
  ,      original.expense_type
  ,       (nvl(revised.budget,0) - original.budget) as difference
  from   original
  ,      revised
  where  original.entity = revised.entity(+)
  and    original.expense_type = revised.expense_type(+)
  and   (nvl(revised.budget,0) - original.budget) != 0
  union all
  select  revised.entity
  ,       revised.expense_type
  ,       revised.budget as difference
  from   revised
  where  not exists
  (select 'x'
  from   original
  where  original.entity = revised.entity
  and    original.expense_type = revised.expense_type)
  and    revised.budget != 0

  Thanks a lot for your comments,.
  
  
  Robert.
  
  Published by: Robert Angel on January 17, 2012 03:31 to change is not equal to! = - Thanks for the heads up

  SQL> with original
    2  as
    3  (
    4    select '801040' entity, '2186' expense_type, 234000 budget
    5    from dual
    6    union all
    7    select '801040' entity, '3001' expense_type, 1000 budget
    8    from dual
    9    union all
   10    select '801040' entity, 'P132' expense_type, 34000 budget
   11    from dual
   12    union all
   13    select '801040' entity, 'P135' expense_type, 43000 budget
   14    from dual
   15  )
   16  , revised
   17  as
   18  (
   19    select '801040' entity, '2186' expense_type, 235000 budget
   20    from dual
   21    union all
   22    select '801040' entity, 'P132' expense_type, 34000 budget
   23    from dual
   24    union all
   25    select '801040' entity, 'P139' expense_type, 56000 budget
   26    from dual
   27  )
   28  select *
   29    from (
   30          select nvl(o.entity, r.entity) entity,
   31                 nvl(o.expense_type, r.expense_type) expense_type,
   32                 nvl(r.budget,0) - nvl(o.budget,0) budget
   33            from original o
   34            full join revised r
   35              on o.entity = r.entity
   36             and o.expense_type = r.expense_type
   37         )
   38   where budget <> 0
   39  /
  
  ENTITY EXPE     BUDGET
  ------ ---- ----------
  801040 2186       1000
  801040 P135     -43000
  801040 3001      -1000
  801040 P139      56000
  
  SQL>
  

• Join of two tables

  Hi all

  I have two tables - TableA and TableB

  I need all these records in TableA that have no matching records in TableB based on Key1, Key2, and Key3 and process them further.

  Can someone help pls?

  Hello 954475

  Try this:

  SELECT A.*

  FROM TableA A

  WHERE DOES NOT EXIST (SELECT 1

  FROM TableB B

  WHERE A.Key1 = B.Key1

  AND A.Key2 = B.Key2

  AND A.Key3 = B.Key3

  )

  ;

  I hope that helps!

• How to find the data in two tables are the same?

  Hi people,
  
  Suppose we have table emp01, have 10 records and create another emp02 as table
  
  create the table emp02 in select * from emp01;
  
  now both the table has the same data.
  
  How to find a 'data' in the two tables are the same?

  Hello

  SELECT *
  FROM emp01
  MINUS
  SELECT *
  FROM emp02
  UNION
  SELECT *
  FROM emp02
  MINUS
  SELECT *
  FROM emp01
  

  You can also compare resultset hash to select * in emp01 and select * from emp02 by using dbms_sqlhash.

  Best regards
  Nikolai