Comparison of columns in the same Table, with the exception

Similar Questions

• update to column values (false) in a copy of the same table with the correct values

  Database is 10gr 2 - had a situation last night where someone changed inadvertently values of column on a couple of hundred thousand records with an incorrect value first thing in the morning and never let me know later in the day. My undo retention was not large enough to create a copy of the table as it was 7 hours comes back with a "insert in table_2 select * from table_1 to timestamp...» "query, so I restored the backup previous nights to another machine and it picked up at 07:00 (just before the hour, he made the change), created a dblink since the production database and created a copy of the table of the restored database.
  
  My first thought was to simply update the table of production with the correct values of the correct copy, using something like this:
  
  
  Update mnt.workorders
  Set approvalstat = (select b.approvalstat
  mnt.workorders a, mnt.workorders_copy b
  where a.workordersoi = b.workordersoi)
  where exists (select *)
  mnt.workorders a, mnt.workorders_copy b
  where a.workordersoi = b.workordersoi)
  
  It wasn't the exact syntax, but you get the idea, I wanted to put the incorrect values in x columns in the tables of production with the correct values of the copy of the table of the restored backup. Anyway, it was (or seem to) works, but I look at the process through OEM it was estimated 100 + hours with full table scans, so I killed him. I found myself just inserting (copy) the lines added to the production since the table copy by doing a select statement of the production table where < col_with_datestamp > is > = 07:00, truncate the table of production, then re insert the rows from now to correct the copy.
  
  Do a post-mortem today, I replay the scenario on the copy that I restored, trying to figure out a cleaner, a quicker way to do it, if the need arise again. I went and randomly changed some values in a column number (called "comappstat") in a copy of the table of production, and then thought that I would try the following resets the values of the correct table:
  
  Update (select a.comappstat, b.comappstat
  mnt.workorders a, mnt.workorders_copy b
  where a.workordersoi = b.workordersoi - this is a PK column
  and a.comappstat! = b.comappstat)
  Set b.comappstat = a.comappstat
  
  Although I thought that the syntax is correct, I get an "ORA-00904: 'A'. '. ' COMAPPSTAT': invalid identifier ' to run this, I was trying to guess where the syntax was wrong here, then thought that perhaps having the subquery returns a single line would be cleaner and faster anyway, so I gave up on that and instead tried this:
  
  Update mnt.workorders_copy
  Set comappstat = (select distinct)
  a.comappstat
  mnt.workorders a, mnt.workorders_copy b
  where a.workordersoi = b.workordersoi
  and a.comappstat! = b.comappstat)
  where a.comappstat! = b.comappstat
  and a.workordersoi = b.workordersoi
  
  The subquery executed on its own returns a single value 9, which is the correct value of the column in the table of the prod, and I want to replace the incorrect a '12' (I've updated the copy to change the value of the column comappstat to 12 everywhere where it was 9) However when I run the query again I get this error :
  
  ERROR on line 8:
  ORA-00904: "B". "" WORKORDERSOI ": invalid identifier
  
  First of all, I don't see why the update statement does not work (it's probably obvious, but I'm not)
  
  Secondly, it is the best approach for updating a column (or columns) that are incorrect, with the columns in the same table which are correct, or is there a better way?
  
  I would sooner update the table rather than delete or truncate then re insert, as it was a trigger for insert/update I had to disable it on the notice re and truncate the table unusable a demand so I was re insert.
  
  Thank you

  Hello

  First of all, after post 79, you need to know how to format your code.

  Your last request reads as follows:

  UPDATE
    mnt.workorders_copy
  SET
    comappstat =
    (
      SELECT DISTINCT
        a.comappstat
      FROM
        mnt.workorders a
      , mnt.workorders_copy b
      WHERE
        a.workordersoi    = b.workordersoi
        AND a.comappstat != b.comappstat
    )
  WHERE
    a.comappstat      != b.comappstat
    AND a.workordersoi = b.workordersoi
  

  This will not work for several reasons:
  The sub query allows you to define a and b and outside the breakets you can't refer to a or b.
  There is no link between the mnt.workorders_copy and the the update and the request of void.

  If you do this you should have something like this:

  UPDATE
    mnt.workorders     A      -- THIS IS THE TABLE YOU WANT TO UPDATE
  SET
    A.comappstat =
    (
      SELECT
        B.comappstat
      FROM
        mnt.workorders_copy B   -- THIS IS THE TABLE WITH THE CORRECT (OLD) VALUES
      WHERE
        a.workordersoi    = b.workordersoi      -- THIS MUST BE THE KEY
        AND a.comappstat != b.comappstat
    )
  WHERE
    EXISTS
    (
      SELECT
        B.comappstat
      FROM
        mnt.workorders_copy B
      WHERE
        a.workordersoi    = b.workordersoi      -- THIS MUST BE THE KEY
        AND a.comappstat != b.comappstat
    )
  

  Speed is not so good that you run the query to sub for each row in mnt.workorders
  Note it is condition in where. You need other wise, you will update the unchanged to null values.

  I wouold do it like this:

  UPDATE
    (
      SELECT
        A.workordersoi
        ,A.comappstat
        ,B.comappstat           comappstat_OLD
  
      FROM
        mnt.workorders        A      -- THIS IS THE TABLE YOU WANT TO UPDATE
        ,mnt.workorders_copy  B      -- THIS IS THE TABLE WITH THE CORRECT (OLD) VALUES
  
      WHERE
        a.workordersoi    = b.workordersoi      -- THIS MUST BE THE KEY
        AND a.comappstat != b.comappstat
    ) C
  
  SET
    C.comappstat = comappstat_OLD
  ;
  

  This way you can test the subquery first and know exectly what will be updated.
  This was not a sub query that is executed for each line preformance should be better.

  Kind regards

  Peter

• I can add a column to an existing table with the data.

  Hello
  
  I'm working on
  The Version of database: Oracle 9i
  
  I can add a column to an existing table that already has data with below given command.
  
  ALTER TABLE table_name
  ADD the definition of the column_name column;
  
  Kind regards
  John

  Add to that:

  If your new column is NOT "null", you need the task in 3 steps:

  1. Add the column without a NOT NULL constraint
  2. the default value of the new column added.
  3. Add the NOT NULL constraint in the new column.

  concerning
  AJ

• Comparison of column in the form of table II

  Hello
  
  At the APEX 4.1 I am doing something similar to this thread: in table form: compare two fields in column where I need to do a validation on two columns in tabular form. It works for both columns are columns of text box, but I can't make it work when comparing to a single column to display. For validation, I have defined it as an "Expression of PL/SQL" and my expression is: CURRENT_VALUE >: PREV_VALUE where CURRENT_VALUE is a column of text box that accepts user input and PREV_VALUE is only one display column.
  
  Regardless of the absorbed power, the row is updated without any errors raised; He seems to treat the single display value in the vacuum and made the comparison with an empty value. The only solution I could find was to make the comparison in a update trigger on and will raise an error if validation fails; but the result is not as nice as the built in features of validation of the APEX.
  
  No indication on how to make it work using the validation of the APEX is greatly appreciated.
  
  Thank you!

  Only column display are for display only and are not saved in the session when you send, so that you can't access with pl/sql.

  So either do the validation in javascript/jQuery or, and it is best if you ask me, make a text field and set to read-only.

• Copy a line in the same table with most original values

  Hello experts SQL, I hope you can help me. Forgive me if this topic has already been answered and posted but I couldn't find.
  
  I need to copy thousands of rows in a table to itself (table). The goal is to insert/add a new line of effdt for non-respondents according to a recent study. I get the old ' ORA-00001: unique constraint "error when I try to run sql. If I specify a value for one of the key fields, emplid, it's not a problem, but I can't specify the values 4 000 + in my sql.
  Could you please give me advice on how to achieve this? Your help is greatly appreciated. Here is my SQL test that does not work:
  
  INSERT INTO pers_data_usa has
  (effdt, emplid, MILITARY_STATUS, US_WORK_ELIGIBILTY,
  CITIZEN_PROOF1, CITIZEN_PROOF2, MEDICARE_ENTLD_DT)
  SELECT EFFDT, B.emplid, TO_DATE(SYSDATE,'DD/MON/YYYY')
  '1', 'Y', B.CITIZEN_PROOF1, B.CITIZEN_PROOF2, B.MEDICARE_ENTLD_DT
  OF pers_data_usa B, pers_data_usa A
  WHERE A.EMPLID = B.emplid
  AND A.EFFDT <>SYSDATE
  
  ORA-00001: unique constraint (SCHEMA. PERS_DATA_USA)
  
  When I put the values in emplid, the line is created. There is a unique constraint on the emplid for non-null and it is a key field.
  
  Thanks in advance for your answers and review... Jason

  What is the unique constraint that is violated, said the? (Is the name of the constraint really the same as the name of the table?) One or more of the lines that you want to copy probably already has a corresponding row in the table that violates the uniqueness constraint.

  If it is an array of PeopleSoft delivered, shouldn't use you PeopleSoft APIs to change the data? Unless you are absolutely certain you know all tables in PeopleSoft that potentially makes reference to this table, directly modify the data tends to cause a lot of headaches down the line.

  Justin

• Updated with the values in the same table, for other records corresponding to conditions

  Hi Experts,

  Sorry do not provide the structure of the table (it is a simple structure)

  I have a requirement where I need to update the columns of a table based on the same table with some match empid and date values. If the date and empid match so I have these values to any other folder and update of one who is not having details of Office . I need the Update query

  Before the update my array of values is as below

  Sort_num Emp_id Bureau start_date

  1 101 AUS 01/01/2013
  2 101 01/01/2013
  3 101 15/01/2013
  4 103 USA 01/05/2013
  5 103 01/01/2013
  6 103 05/01/2013
  7 104 FRA 01/10/2013
  8 104 10/01/2013
  9 104 01/01/2013

  After update my table should be as below

  Sort_num Emp_id Bureau start_date

  1 101 AUS 01/01/2013
  2 101 AUS 01/01/2013
  3 101 15/01/2013
  4 103 USA 01/05/2013
  5 103 01/01/2013
  6 103 USA 01/05/2013
  7 104 FRA 01/10/2013
  8 104 FRA 01/10/2013
  9 104 01/01/2013

  Thanks in advance

  I don't have the time to create the table with the data, but basically, you should be able to code the following text

  update one table

  Office set = (select desktop in table b where b.emp_id = a.emp_id)

  and b.start_date = a.start_date

  and b.office is not null

  )

  where is ([as well as overall query])

  and a.office is null

  In my opinion, who will do the trick.

  HTH - Mark D Powell.

• Comparison of column level with different database to different server

  Hi all
  
  
  I have two database on the other server. I want to find the difference between the tables in the two tables for example same table with different column, it can happen...
  
  
  How to compare two tables column level with two differnet Server database.
  
  
  
  Thanks in advance.

  user647572 wrote:
  Hi all

  I have two database on the other server. I want to find the difference between the tables in the two tables for example same table with different column, it can happen...

  How to compare two tables column level with two differnet Server database.

  SELECT * FROM USER_TAB_COLUMNS
  LESS
  SELECT * FROM USER_TAB_COLUMNS@REMOTE
  UNION
  SELECT * FROM USER_TAB_COLUMNS@REMOTE
  LESS
  SELECT * FROM USER_TAB_COLUMNS;

• Support for mandatory request - insert, select from the same table

  Hi all
  
  I need your help to write queries effectively.
  Oracle Version: 10.2.0.3.0
  OPERATING SYSTEM: UNIX
  
  I have a METRICS_TBL that is mentioned below table.
  
  CYCLE_DATE METRIC VALUE
  08/17/2008 COST-TV 100
  08/17/2008 COST-JOURNAL 50
  08/17/2008 COST-POSTALMAIL 25
  08/17/2008-PROD-TV 10
  08/17/2008-PROD-JOURNAL 25
  08/17/2008-PROD-POSTALMAIL 5
  
  Any data above, I have to add (Insert into select METRICS_TBL METRICS_TBL) at the same table with the records as mentioned below.
  
  2008-08-17 COSTPERPROD-TV 10
  08/17/2008-COSTPERPROD-LOG 2
  2008-08-17 COST PROD-POSTALMAIL 5
  
  Basically, I need to calculate the cost per product for each category. Depending on the settings available, metric should also be changed as COSTPERPROD and values should be cost/prod under each category.
  
  Can someone help me with the query.
  
  Thank you

  Something like this:

  INSERT INTO metrics_tbl
  (cycle_date, metrics, value)
  SELECT cost.cycle_date
           , 'COSTPERPROD-'||cost.mtype
           ,cost.value / prod.value
  FROM  (
     select cycle_date,substr(metrics, 1, 4) mtype, substrmetrics,instr(metrics,'-')+1) mmetric
     where substr(metrics, 1, 4) = 'PROD'
     ) prod
  INNER JOIN (   select cycle_date,substr(metrics, 1, 4) mtype, substrmetrics,instr(metrics,'-')+1) mmetric
     where substr(metrics, 1, 4) = 'COST'
     ) cost on cost.cycle_date = prod.cycle_date and cost.mmetric = prod.mmetric
  

  Ideally you would divide your METRICS column into two: one for the thing you're measuring (e.g. TV or NEWSPAPER) and the other for the metric (COST, PROD, COSTPERPROD etc.). That's what I did in the views online. Without it, it's kinda a mess and behave so, if the table becomes much more.

  HTH

  Nigel cordially

  Edited by: nthomas on January 14, 2009 15:57 - small correction SQL

• Calculation for table element, then replace in same table

  I have a 2D, c [j, i] table, and I want to perform calculations on each element of this array, c [j, I] = c [j, I] + d * one update [i], so that the same table with the new values.  I installed the structure using a loop and got back each new c [j, I] that I'm supposed to do, but I can't seem to get these new values into the table.  I tried to use the node 'Replace table subset' but I can't seem to connect the output to the same HP. array [j, I] table.

  Any help is greatly appreciated!

  Hi cmersit,

  Why do you need that for? You have not said before...

  Well, create a local to c [j, I], move it to the for loop and connect with the release of ReplaceArraySubset. It's going to hurt needs memory and processing speed and doesn't help here. Replace [result] with a local of c [j, I] for this example. Otherwise use a shift register in the outer loop!

• How to export data to excel that has 2 tables with the same number of columns and the column names?

  Hi everyone, yet once landed upward with a problem.

  After trying many things to myself, finally decided to post here...

  I created a form in form builder 6i in which clicking on a button, the data gets exported to the excel sheet.

  It works very well with a single table. The problem now is that I cannot do the same with 2 tables.

  Because the tables have the same number of columns and the columns names.

  Here are the 2 tables with column names:

  Table-1 (MONTHLY_PART_1)	Table-2 (MONTHLY_PART_2)
  SL_NO	SL_NO
  MODEL	MODEL
  END_DATE	END_DATE
  U-1	U-1
  U-2	U-2
  U-4	U-4
  ..........	........
  ..........	........
  U-20	U-20
  U-25	U-25

  Given that the tables have the same column names, I get the following error :

  402 error at line 103, column 4

  required aliases in the SELECT list of the slider to avoid duplicate column names.

  So how to export data to excel that has 2 tables with the same number of columns and the column names?

  Should I paste the code? Should I publish this query in 'SQL and PL/SQL ' Forum?

  Help me with this please.

  Thank you.

  Wait a second... is this a kind of House of partitioning? Shouldn't it is a union of two tables instead a join?

  see you soon

• Report with multiple columns NUMBER of counts of the same table

  I am new to discoverer, so I'm a little lost.
  
  I work to create a report to show usage data and Knowledge Base of e-business. I have written using subqueries in SQL query that is in the format:
  
  Solution number | Soultion title | Solution views. Positive feedback | Negative feedback
  Title of 12345 _ 345 _ 98 34
  
  
  The entries 'Views', 'Positive' and 'Negative' are stored in the same table, so I do a count where setid = setid and usedtype = VS, then count where usedtype = usedtype and PF = NF
  
  Discoverer, I can get the number of solution, the title and THE totals but I can't seem to understand how to get an ACCOUNT for three different things from the same table in the columns on the same line.
  
  When I go on change map-> select the items once I select the option NUMBER of the UsedType column in the CS_KB_SET_USED_HISTS table, I can't select it again. I also found way now to add a column based on a query entered.
  
  If someone could help it would be much appreciated.
  
  Thank you
  
  Published by: Toolman21 on December 2, 2010 14:17
  _ to correct spacing added.

  Hello
  You can separate the column with a case or decode.
  for example to create 2 calculations:

  case
  When usedtype = "PF".
  then - that contain both
  0 otherwise
  end

  case
  When usedtype = 'NF '.
  then - that contain both
  0 otherwise
  end

  After that, you can create the aggregation count on those.

  Tamir

• How to update columns with the value of other lines in the same table

  Hello
  
  I use Oracle 11.2, I'd use SQL statements to update a column based on values in other rows in the same table. Here are the details:
  
  create table TB_test (number 4 myId, crtTs date, date of MDPU);
  
  insert into tb_test (1, to_date ('20110101', 'YYYYMMDD'), null);
  insert into tb_test (1, to_date ('20110201', 'YYYYMMDD'), null);
  insert into tb_test (1, to_date ('20110301', 'YYYYMMDD'), null);
  insert into tb_test (2, to_date ('20110901', 'YYYYMMDD'), null);
  insert into tb_test (2, to_date ('20110902', 'YYYYMMDD'), null);
  
  After you run the SQL code, I would like to have the following result:
  
  1, 20110101, 20110201
  1, 20110201, 20110301
  1, 20110301, null
  2, 20110901, 20110902
  2, 20110902, null
  
  Thanks for your suggestion.

  I guess you need this, otherwise please explain logic correctly:

  SQL> merge into tb_test t
    2  using (
    3    select rowid as rid
    4         , lead(crtts) over(partition by myid order by crtts) as updts
    5    from tb_test
    6  ) v
    7  on (t.rowid = v.rid)
    8  when matched then update
    9   set t.updts = v.updts
   10  ;
  
  5 rows merged.
  
  SQL> select * from tb_test order by 1,2;
  
        MYID CRTTS     UPDTS
  ---------- --------- ---------
           1 01-JAN-11 01-FEB-11
           1 01-FEB-11 01-MAR-11
           1 01-MAR-11
           2 01-SEP-11 02-SEP-11
           2 02-SEP-11
  

• update of column with another column with in the same table

  Hello
  We are using oracle 10g,
  I have a table with two columns i a s number one other data type is varchar2, varchar2 column contains
  numAriques and data type character I want to move only numAriques to the numeric data type field data, please kindly give answer
  
  Thanks and greetings
  tmadugula

  You are not providing any version of the database, sample data or table desc, but anyway:

  http://asktom.Oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:3083286970877 #49518312679214

  Something like:

  create or replace function is_num
  (p_str in varchar2)
  return number
  as
  begin
    return to_number(p_str);
  exception
    when others then return null;
  end;
  

  Which translates into:

  MHO%xe> select * from bla;
  
  MY_VA  MY_NUMBER
  ----- ----------
  AAAAA
  BBBBB
  11111
  22222
  CCCCC
  33333
  
  6 rijen zijn geselecteerd.
  
  Verstreken: 00:00:01.32
  MHO%xe> desc bla
   Naam                                      Null?    Type
   ----------------------------------------- -------- ----------------------------
   MY_VARCHAR                                         VARCHAR2(5)
   MY_NUMBER                                          NUMBER(5)
  
  MHO%xe> select * from bla where is_num(my_varchar) is not null;
  
  MY_VA  MY_NUMBER
  ----- ----------
  11111
  22222
  33333
  
  Verstreken: 00:00:01.73
  MHO%xe> update bla
    2  set my_number  = is_num(my_varchar)
    3  where is_num(my_varchar) is not null;
  
  3 rijen zijn bijgewerkt.
  
  Verstreken: 00:00:00.51
  MHO%xe> select * from bla;
  
  MY_VA  MY_NUMBER
  ----- ----------
  AAAAA
  BBBBB
  11111      11111
  22222      22222
  CCCCC
  33333      33333
  
  6 rijen zijn geselecteerd.
  

• How to compare one by an element of a column with the first column in the other table?

  Hello

  I have two files into a single file has only Id numbers and the second file has table with for example the column 4, and his first column identification number.

  So I want to compare the first item in the User.ID file with the 1st column all the table file items in this column until it finds matches.

  If compare match then LED will be IT other wise LED will be OFF.

  Here as an attachment, I've attached the two file.

  Please guide me how can I do the same thing.

  Thank you much in advance.

  
  

• place a select query calculation in a different column in the same table

  How can I put my calculation result in a column named within the same table?

  I have a table called: dgpercentagedatachart

  I use the columns of this dgpercentagedatachart: totalcecrating divided by lowestfeederrating times 100 to get the percentage

  In the query, I gave the result the Alias of the cal

  What I want is to put this result in my application or my calculation (in percentage) in my column "percent" on my table of dgpercentagedatachart vacuum.

  How can I configure this syntax?

  This is the select query, I came with:

  Select dgpercentagedatachart.totalcecrating, dgpercentagedatachart.lowestfeederrating,.

  100.00*dgpercentagedatachart.totalcecrating/dgpercentagedatachart.lowestfeederrating as cal

  of dgpercentagedatachart;

  Here are the results:

  CAL lowestfeederrating Totalcecrating

  8,978 7.48166666666666666666666666666666666667 120

  30.951 25.7925 120

  5.04                         120                          4.2

  Hello

  2685870 wrote:

  How can I put my calculation result in a column named within the same table?

  I have a table called: dgpercentagedatachart

  I use the columns of this dgpercentagedatachart: totalcecrating divided by lowestfeederrating times 100 to get the percentage

  In the query, I gave the result the Alias of the cal

  What I want is to put this result in my application or my calculation (in percentage) in my empty column '%' on my table of dgpercentagedatachart .

  How can I configure this syntax?

  This is the select query, I came with:

  Select dgpercentagedatachart.totalcecrating, dgpercentagedatachart.lowestfeederrating,.

  100.00*dgpercentagedatachart.totalcecrating/dgpercentagedatachart.lowestfeederrating as cal

  of dgpercentagedatachart;

  Here are the results:

  CAL lowestfeederrating Totalcecrating

  8,978 7.48166666666666666666666666666666666667 120

  30.951 25.7925 120

  5.04                         120                          4.2

  To change an existing column in a table, you can use the UPDATE or MERGE, instructions like this:

  UPDATE dgpercentagedatachart

  Percentage of VALUE = 100,00 * totalcecrating

  / lowestfeederrating

  ;

  Noramlly, tables is not redundant columns like this.  If percent can always be calculated from other columns, then it is probably better to calculate at run time and store it in the database, where you will have to be updated each time the columns it depends on change.  You can use a view to avoid having to encode them the calculation.

  If you really don't want a column that can be calculated in the same lines other columns, then use a virtual column (if you use Oracle 11 or higher).

  I hope that answers your question.

  If this isn't the case, please post a small example of data (CREATE TABLE and only relevant columns, INSERT statements) for all of the tables involved and also publish outcomes from these data.

  If you ask on a DML statement, such as UPDATE, the sample data will be the content of the or the tables before the DML, and the results will be the State of the or the tables changed when it's all over.

  Explain, using specific examples, how you get these results from these data.

  Always say what version of Oracle you are using (for example, 11.2.0.2.0).

  See the FAQ forum: Re: 2. How can I ask a question on the forums?