finding duplicate records in the DB table, or the data trasnpose

Similar Questions

• Find duplicate records in the fields.

  Hi all
  
  There are 5 A B C D E of type Varchar fields in my table x. 4 A B C D fields are key fields.
  
  I would like to ask two copies of the fields in the fields A B C D.
  
  Please suggest me.
  
  Thank you
  KSG

  Hello
  Simply:

  SELECT A, B, C, D, Count(*)
    FROM your_table
   GROUP BY A, B, C, D HAVING Count(*) > 1;
  

• Find records in the date range

  Hello
  
  I have the following data
  

  with t as (
     select 1234 prod_id, to_date('01-Jan-2008', 'dd-MON-yyyy') start_date, to_date('01-May-2012', 'dd-MON-yyyy') end_date
      from dual union 
      select 4567 prod_id, to_date('01-Aug-2007', 'dd-MON-yyyy') start_date, to_date('01-Apr-2012', 'dd-MON-yyyy') end_date
      from dual union
      select 8910 prod_id, to_date('01-Jul-2006', 'dd-MON-yyyy') start_date, to_date('01-Mar-2012', 'dd-MON-yyyy') end_date
      from dual 
      )      
      SELECT *
    FROM t

  What is the best way to find all records in April 1, 2012 and April 30, 2012?
  
  Concerning

  Assuming that you are looking for cumulation ranges

  SELECT *
    FROM t
   WHERE start_date BETWEEN date '2012-04-01' and date '2012-04-30'
      OR end_date BETWEEN date '2012-04-01' and date '2012-04-30'
      OR (    start_date < date '2012-04-01'
          AND end_date > date '2012-04-30' )
  

  who produces the two lines expected

  SQL> with t as (
    2     select 1234 prod_id, to_date('01-Jan-2008', 'dd-MON-yyyy') start_date, to_date('01-May-2012', 'dd-MON-yyyy') end_date
    3      from dual union
    4      select 4567 prod_id, to_date('01-Aug-2007', 'dd-MON-yyyy') start_date, to_date('01-Apr-2012', 'dd-MON-yyyy') end_date
    5      from dual union
    6      select 8910 prod_id, to_date('01-Jul-2006', 'dd-MON-yyyy') start_date, to_date('01-Mar-2012', 'dd-MON-yyyy') end_date
    7      from dual
    8      )
    9  SELECT *
   10    FROM t
   11   WHERE start_date BETWEEN date '2012-04-01' and date '2012-04-30'
   12      OR end_date BETWEEN date '2012-04-01' and date '2012-04-30'
   13      OR (    start_date < date '2012-04-01'
   14          AND end_date > date '2012-04-30' );
  
     PROD_ID START_DAT END_DATE
  ---------- --------- ---------
        1234 01-JAN-08 01-MAY-12
        4567 01-AUG-07 01-APR-12
  

  Justin

• How to delete a record in the data store VMware

  Hello

  First VM4 & VM5 is migrated during the execution of the migration of the VM20, sort of migration of VM4 & VM5 failed a few minutes later. But VM4 folder could be seen under backup2 datastore. When VM4 is migrated again once finished VM20 migration, VM4_1 record can be seen in the data backup2 store.  And VM4 folder includes a DB_backup - flat hard file.

  So I have a few questions:

  (1) how can I remove the VM4 because it's useless?  Should I delete file DB_backup - flat hard and then delete the folder VM4? But I can't find measures to remove the VM4 folder in the store of data backup2. Who can provide the steps?

  (2) how can I rename the folder VM4_1 to VM4 name?

  Thank you!

  Thanks Andre for clarification. Yes, even if the file can be renamed when the VM is turned on but this will lead to issues if we want to migrate the virtual computer to the another data store or if we stop & try to turn on. So please do not rename folder when the virtual machine is running.

  Second approach will work fine.  Renaming that is to display the name of the computer virtual, then SVMotion in another data store & and then you can bring the virtual machine to the previous data store.

  Reference:VMware KB: rename a virtual machine and VMware ESXi and ESX records

• How to get the different records for the date max.

  Hi all

  Here is the sample sql for sample table and data.

  Create table student (dept_id number(10), first_name varchar2(10),last_name varchar2(10),join_date date,years_attended number(10));

insert into student values (1,'Ann','Coleman',to_date('3/7/1917','MM/DD/YYYY'),4);
insert into student values (1,'Ann','Coleman',to_date('3/7/1916','MM/DD/YYYY'),5);
insert into student values (2,'Rock','Star',to_date('1/1/1920','MM/DD/YYYY'),5);
insert into student values (2,'Rock','Star',to_date('1/1/1921','MM/DD/YYYY'),6);
insert into student values (3,'Jack','Smith',to_date('7/1/1900','MM/DD/YYYY'),3);

  insert into student values (3,'Jack','Smith',to_date('7/1/1901','MM/DD/YYYY'),4);

  commit;

  I need to get maximum date records when the name and dep_id corresponds to. I wrote the query below and it becomes the expected result, but I'm not sure it's quite effective.

  SELECT s.dept_id, s.first_name,s.years_attended

  FROM (SELECT dept, MAX (join_date) join_date

  STUDENT GROUP BY dept_id) x

  Student JOIN s ON x.dept_id = s.dept_id AND x.join_date = s.join_date;

  This above query returns records like below, and this is the goal.

  DEPT_ID NAME YEARS_ATTENDED

  1                         Ann                                4

  2                         Rock                              6

  3                         Jack                              4

  Can you please let me know the query SQL I wrote is effective or not? This sample table may have less data, but I'm dealing with millions of records.

  Hello

  Thanks for posting CREATE TABLE and INSERT statement. This really helps.

  Here's a solution. I also added a name that seems logical. In which case you can delete:

  Select dept_id, first_name, last_name

  , max (years_attended) Dungeon years_attended (last dense_rank order by join_date)

  the student

  Group of dept_id, first_name, last_name;

  DEPT_ID FIRST_NAME LAST_NAME YEARS_ATTENDED

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

  1 Ann Coleman 4

  Rock 2 star 6

  3 Jack Smith 4

  Kind regards.

  Alberto

• Get number of records in the date range - IDE: PLSQL Developer

  I want to count the number of records of members who register within a date range specified, based on effective and expiration dates and their "elg_code". I posted the SQL code for some examples of data. What I would like to see returned is in three columns of the counties where the eff_date date_exp members fall within the date range specified by the SQL and have an Elg_code of ' ' (space).
  
  So what I would like is all members with elg_code ' ' where he eff_dt and exp_dt range is April 2012, 2012 MAY & JUN 2012. Thus, according to data from the sample I posted, Mark, where his elg_code record is ' ', his eff_dt is 01/01/2011 and April 2012 (30/04/2012) is his exp_dt. Range of the brand statement may 2012, but not MAY or JUNE of 2012. Marty would tally for the APR and MAY because his eff_dt is before MAY 2012 and his exp to MAY 2012. etc...
  
  According to the data below, the results should resemble:
  
  APR MAY JUN
  4-3-2
  
  APR should have FRANK, MARK, MARTY, MARY.
  MAY should have FRANK, MARTY, MARY
  JUN should have FRANK and MARIE
  
  NOAM and JOHN should not appear as his records with elg_code ' ' have no documents eff_dt and exp_dt which are April-June 2012.
  
  So what I tried without success as it appears that I have a kind of Cartesian question (?), is:
  
  Select count (m1.mbr_name) APR,
  Count (m2.mbr_name) MAY,
  Count (m3.mbr_name) JUN
  mbr2 M1,
  mbr2 m2,
  mbr2 m3
  "where m1.eff_dt < ' 01 - may - 2012"
  "and m1.exp_dt > ' 01-Apr-2012.
  and m1.elg_code = ' '
  "and m2.eff_dt < 1 June 2012"
  "and m2.exp_dt > ' 01 - may - 2012"
  and m2.elg_code = ' '
  "and m3.eff_dt < 1 July 2012"
  "and m3.exp_dt > 1 June 2012"
  and m3.elg_code = ' '
  
  
  Here's the DML
  
  Thanks for any help!
  
  
  create table mbr2 (mbr_name varchar (10), varchar (1) grpid eff_dt date, date of exp_dt elg_code varchar (1))
  Commit
  
  insert into mbr2 values ('BRAND', 'A', to_date (January 1, 2011 ',' DD-MM-YYYY '), to_date (April 30, 2012 ',' DD-MM-YYYY '), ' ')
  insert into mbr2 values ('BRAND', 'A', to_date (May 1, 2012 ',' DD-MM-YYYY '), to_date (31 December 2013 ',' DD-MM-YYYY '), 'C')
  
  insert into mbr2 values ('MARTY', 'A', to_date (January 1, 2011 ',' DD-MM-YYYY '), to_date (May 31, 2012 ',' DD-MM-YYYY '), ' ')
  insert into mbr2 values ('MARTY', 'A', to_date (June 1, 2012 ',' DD-MM-YYYY '), to_date (31 December 2013 ',' DD-MM-YYYY '), 'C')
  
  insert into mbr2 values ('FRANK', 'B', to_date (January 1, 2011 ',' DD-MM-YYYY '), to_date (June 30, 2012 ',' DD-MM-YYYY '), ' ')
  insert into mbr2 values ('FRANK', 'B', to_date (July 1, 2012 ',' DD-MM-YYYY '), to_date (31 December 2013 ',' DD-MM-YYYY ""), 'C')
  
  insert into mbr2 values ('MARY', 'B', to_date (January 1, 2011 ',' DD-MM-YYYY '), to_date (June 30, 2012 ',' DD-MM-YYYY '), ' ')
  insert into mbr2 values ('MARY', 'B', to_date (July 1, 2012 ',' DD-MM-YYYY '), to_date (31 December 2013 ',' DD-MM-YYYY ""), 'C')
  
  insert into mbr2 values ('JOHN', 'C', to_date (January 1, 2011 ',' DD-MM-YYYY '), to_date (July 1, 2011 ',' DD-MM-YYYY '), ' ')
  insert into mbr2 values ('JOHN', 'C', to_date (July 1, 2011 ',' DD-MM-YYYY '), to_date (1 January 2012 ',' DD-MM-YYYY ""), 'C')
  
  insert into mbr2 values ("NOAM" 'd', to_date (July 1, 2012 ',' DD-MM-YYYY '), to_date (31 December 2013 ',' DD-MM-YYYY '), ' ' ")
  
  Commit

  This gives you a report for the current month and the two front. Column header must be adjusted ;-)

  select
    count(
    case
    when
      eff_dt < add_months(trunc(sysdate,'MM'), -1)
      and
      exp_dt >= add_months(trunc(sysdate,'MM'), -2)
    then 1
    end) April
  , count(
    case
    when
      eff_dt < add_months(trunc(sysdate,'MM'), 0)
      and
      exp_dt >= add_months(trunc(sysdate,'MM'), -1)
    then 1
    end) May
  , count(
    case
    when
      eff_dt < add_months(trunc(sysdate,'MM'), 1)
      and
      exp_dt >= add_months(trunc(sysdate,'MM'), 0)
    then 1
    end) June
  from mbr2
  where
  elg_code = ' '
  and
  eff_dt < add_months(trunc(sysdate,'MM'), 1)
  and
  exp_dt >= add_months(trunc(sysdate,'MM'), -2)
  
  APRIL     MAY     JUNE
  4     3     2
  

• Find a VM (from the data store, file, the pool and etc..) ID name

  Hello:

  I wonder if there is a way to find the virtual computer (of esx, the data store, file, the pool and etc..) ID name of vSphere CLI power.

  The goal is to find the virtual if name machine ID if known (and the same for esx datastore, record pool and etc..).

  Thank you

  Olegarr

  Hello

  According to my understanding, we can get the managed object ID of the virtual machines,

  $serv = connect-VIServer-Server

  Write-Output $vm. ID

  The same with others, like first Get-VMHost, store in a variable and then the variable. ID gives you the code.

  I hope this helps.

• While the loop records all the data

  Hello

  I have a LabView program containing two while loops. The first is used to increment a frequency on our machine and the second, which is located in the first, used to take a certain number of points of data to this frequency. After taking these data points, the frequency is supposed to rise again. This happens for a set number of times.

  The problem I have is that the data file as the data points in the second then the loop are supposed to be written in does not display do not all the data points in the program should have taken. For example, if we want the first loop increment of 10 times and the second to take 5 data points every time, we expect to see 50 data points in our files. But we see only 10. The watch file always only an amount of data points equal to the first loop iterations. If we cut our data at that time.

  Someone has an idea what could be our problem?

  
  

• How do to find duplicate records in a table, then delete them.

  Hi all
  
  I'm working on a database of GR 11, 2 under linux. Recently, we have created a unique index on two inplace of columns in a single-column index. When we try to create this index in pre-production and prod to get an error message saying that the "double values found. Now my team asked me to write a pl/sql package or procedure to find these duplicate values and remove it or any other way to do it for them as well. But I'm not familiar with stuff of PL/SQL or data level how to perform this task.
  Please help me on this issue, how can I proceed.
  Thanks in advance for your help.

  Try this:

  
  CREATE TABLE z_test2
  AS
     SELECT 1 a, 'aaa' b FROM DUAL
     UNION ALL
     SELECT 1 a, 'aaa' b FROM DUAL
     UNION ALL
     SELECT 1 a, 'bbbb' b FROM DUAL
     UNION ALL
     SELECT 12 a, 'aaa' b FROM DUAL
     UNION ALL
     SELECT 12 a, 'aaa' b FROM DUAL
     UNION ALL
     SELECT 12 a, 'aaa' b FROM DUAL
     UNION ALL
     SELECT 13 a, 'aaa' b FROM DUAL;
  
  DELETE FROM z_test2 x
        WHERE EXISTS
                 (SELECT '*'
                    FROM (SELECT a,
                                 b,
                                 ROW_NUMBER ()
                                    OVER (PARTITION BY a, b ORDER BY a)
                                    rn
                            FROM z_test2) y
                   WHERE x.a = y.a AND x.b = y.b AND rn > 1);
  
                   
  

• Alternative to find duplicate records

  Hello

  My requirement is to find records in doubles of the sub sample. But it takes more time to generate the output when you work for about 10 lakh of records.

  Is there an alternative approach without the help of the JOIN. Thanks in advance

  with aaa as

  (select 101 as id, seq 1, "Asthma" as an event, 'medical' as an union journalist double

  Select 101, 3, 'asthma', 'medi' Union double

  Select 101, 2, 'lag', 'meddi' Union double

  Select 102.2, "whooping cough", "LP" of double union

  Select 102.1, "whooping cough", "LPS" double Union

  102.4 select, "whooping cough", "LPWS' Union double

  Select 102.3, 'ddd', 'dd' double Union

  Select 103, 1, 'asthma', ' Union double

  Select 103, 2, 'asta', have ' Union double

  Select 104,2, "whooping cough", "xx" of the double

  )

  Select x.* from aaa x,

  (SELECT id, event, count (*)

  by aaa

  Group by id, event

  Having count (*) > 1

  ) b

  where x.id = b.id

  and x.event = b.event

  something along the lines

  with aaa as
  
  (select 101 as id, 1 as seq, 'asthma' as event, 'medical' as reporter from dual union
  
  select 101, 3, 'asthma', 'medi' from dual union
  
  select 101, 2, 'lag', 'meddi' from dual union
  
  select 102,2, 'whooping', 'LP' from dual union
  
  select 102,1, 'whooping', 'LPS' from dual union
  
  select 102,4, 'whooping', 'LPWS' from dual union
  
  select 102,3, 'ddd', 'dd' from dual union
  
  select 103, 1, 'asthma', 'm' from dual union
  
  select 103, 2, 'asta', 'm' from dual union
  
  select 104,2, 'whooping', 'xx' from dual
  
  )
  select * from (
  select aaa.* , count(*) over (partition by id,event) rn from aaa
  ) where rn > 1;
  

  Hope this helps

  Alvinder

• Between the records in the data base - year wise

  Hi Experts,

  I have a database and I want to separate year files wise in a form of database.

  A database for 2013

  A database for 2014 and so on...

  There is currently no procedure for separation of records.

  Reports are increasing day after day.

  I intend to do this by querying each table and storing a different database.

  What a way to make?

  Cecile

  It takes less storage to add storage to a database it does to create a separate database for each year of data you want to store, so your argument to save cost and space is invalid.  It is not feasible; a partitioned table would be a good approach, as has already suggested it.

  David Fitzjarrell

• How to stop excel from opening during the recording of the data?

  Hello

  I am trying to save data in an excel file and I constantly use the same file to update the information. The problem is, every time that I update or create an excel file, it actually opens an excel window. I want to create and save data without opening it for the user!

  I hope I can clear my problem...

  Below you can take a look at some of the screws I use to create and uptade information.

  My comments are in Portuguese, so I gave you the hole VI, so you can use the help option to get what is happening.

  Thank you for the attention!

  

  OK, so... I got the answer for my problem... I worked on it for about 2 days and now I asked I understand it.

  If someone had a similar problem, here is the solution:

  The new report VI, set "no change" to the State of the window.

  Simple like that xD

• Advised to make soft the system restore... can not find place to enter the date of the restoration

  Where can I find this day soft system restore restore

  Hello

  How to make a Vista system restore
  http://www.Vistax64.com/tutorials/76905-System-Restore-how.html
  I hope this helps.

  Rob Brown - MS MVP - Windows Desktop Experience: Bike - Mark Twain said it right.

• Recording of the data via vSphere Client store VMs

  I'm trying to migrate some VMWare Server 2 virtual machines to ESXi but can't see how to import virtual machines of the ESXi Datastore inventory by the vSphere Client. Am I missing something obvious here, or this can be done through the command line?

  Hi Mark,

  A simple right-click on the vmx file should be used. Take a look at the following kb:

  • http://KB.VMware.com/selfservice/microsites/search.do?cmd=displayKC&docType=kc&externalId=1006160

  It will be useful.

  Concerning

  Franck

• How to find duplicates in the table

  I have a table with 3 columns
  
  name of the table - used
  
  empcode firstname lastname
  XYZ 123 pk
  yzz 456 pk
  101 kkk jk
  
  
  ALTER TABLE employee
  ADD (CONSTRAINT PRIMARY KEY employee_PK
  (empcode, firstname, lastname))
  
  
  all the three columns are as key to porimary, we are migrating the data, there are problems with the data as the cobination of all three, resulting in duplicate, in the last column is supposed to be duplicates but first two columns will not have the duplicate and a complete line of the table (combination have no duplicates)
  
  a query need to find duplicates to validate the whole lines

  (B-)

  select empcode,firstname,lastname,count(*)
  from employee
  group by empcode,firstname,lastname
  having count(*)>1;