Unique index on two columns based on the conditon

Similar Questions

• unique index on two columns

  Hi all
  I want a unique index on two columns, but when I try this it will show me

    1  CREATE UNIQUE INDEX sale_order_no
    2*   ON sale_order (sale_order_no, season_year)
  SQL> /
    ON sale_order (sale_order_no, season_year)
       *
  ERROR at line 2:
  ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found

  I want to do not overlap with the combination of these two
  
  Plaese Guide
  Thanks and greetings
  Vikas

  You would this behavior if SALE_ORDER_NO has NULL values. If it contains NULL values, a unique single-column index will succeed but an index unique multi-column will fail when it finds duplicates in SEASON_YEAR.

  See:

  SQL> create table dummy_objects (object_id  number, object_owner varchar2(30), object_name varchar2(30));
  
  Table created.
  
  SQL> insert into dummy_objects values (0,'HEMANT','TABLE_A');
  
  1 row created.
  
  SQL> insert into dummy_objects values (1,'HEMANT','TABLE_B');
  
  1 row created.
  
  SQL> insert into dummy_objects values (NULL,'HEMANT','NULL_1');
  
  1 row created.
  
  SQL> insert into dummy_objects values (NULL,'HEMANT','NULL_2');
  
  1 row created.
  
  SQL> create unique index dummy_objects_u1 on dummy_objects(object_id);
  
  Index created.
  
  SQL> drop index dummy_objects_u1;
  
  Index dropped.
  
  SQL> create unique index dummy_objects_u2 on dummy_objects(object_id, object_owner);
  create unique index dummy_objects_u2 on dummy_objects(object_id, object_owner)
                                          *
  ERROR at line 1:
  ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found
  
  SQL>
  

  Hemant K Collette
  http://hemantoracledba.blogspot.com

• Index on two columns becomes the index of function?

  Hello, I create a unique index with two columns, a number (9) and a date.
  
  It becomes an index of feature based with the number column and a column sys hidden (date).
  
  When I do queries that use this index the autotrace tells me it does things like this:
  
  sys_nc00001$ > SYS_OP_DESCEND (datevalue)
  sys_nc00001$ IS NOT NULL
  
  How is he did not have a normal index?

  Use of ESCR does this.

  Of http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_5010.htm

  Oracle database processes Index descending as if they were focused on the index function.

• retriving of unique records on two columns

  Hello world

  
  

  Using sql query, that he must retrieve unique records on two columns.

  Example of table source: raster columns [uwi, well_no]

  Examples of data below

  
  

  UWI well_no

  -----    --------

  1 988311

  1 988311

  1 1032662

  1 1032662

  2 103

  2 103

  2 103

  3

  3 104

  3 104

  3 104

  4 106

  4 107

  4

  4 108

  For a given

  UWI: 1 there are 4 well_no which is having two distinct values where these documents I need to go get

  UWI: 2 there are 3 well_no, all 3 well_no contains the same value as (103) Consequently, these documents should not seek

  UWI: 3 there are 4 well_no (1 null and 3 values are the same (104)] where these records should not seek.)

  UWI: 4 there are 4 well_no which is to have three separate with a single value zero so these 4 files, I need to get.

  output:

  UWI well_no

  -----    --------

  1 988311

  1 988311

  1 1032662

  1 1032662

  4 106

  4 107

  4

  4 108

  Thank you

  Jery

  Hi, Michel,.

  Whenever you have a question, please post CREATE TABLE and INSERT statements for your sample data, so people who want to help you can recreate the problem and test their ideas.

  Format your message so that it is easy to read and understand.

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

  See the FAQ forum: https://forums.oracle.com/message/9362002

  Maybe you want something like this, which shows information about the jobs that have deptnos 2 or more not NULL:

  WITH got_cnt AS

  (

  SOME jobs, deptno

  , ACCOUNT (SEPARATE deptno) RESUMED (work PARTITION) AS cnt

  FROM scott.emp

  )

  SOME jobs, deptno

  OF got_cnt

  WHERE cnt > 1

  ;

• 'Burned' fingers index to use MacBook Pro trackpad: my both hands, index fingers. which are based on the computer next to the trackpad or are used on the trackboard are painful, feel like they were burnt, and I can barely move them.  Yes, I did

  My both hands, index fingers. which are based on the computer next to the trackpad or are used on the trackboard are painful, feel like they were burnt, and I can barely move them.  I do not have this problem before, I bought my new Mac - specifications below: it hurts and I don't have a problem with my windows, iPad or Samsung Galaxy equipment operating systems computers.

  It feels like radiation leaking through the computer case.  Is the radiation involved in the chips?

  MacBook Pro

  Model identifier: MacBookPro11, 4

  Processor name: Intel Core i7

  Processor speed: 2.2 GHz

  Number of processors: 1

  Total number of Cores: 4

  (By heart) L2 Cache: 256 KB

  L3 Cache: 6 MB

  Memory: 16 GB

  Boot ROM version: MBP114.0172.B06

  Version of the SCM (System): 2.29f24

  Are you use while plugged in, I feel a buzzing in my 13-inch rMBP (12.1)

• Compare multiple columns and update a column based on the comparison

  Hi all

  I have to update the column STATUS of the slot structure of the table.

  Status should be 'P' if all the columns count are equal on the other should be "F".

  The value of the column can be "NA'. If the value is NA, then avoid this comparison column; compare only other 3 columns.

  My output should look like below.

  State of cnt1, cnt2 cnt3 ID cnt4

  1   4       4       4     4       P

  2   4       5       4     4       F

  3 4 4 NA 4 P

  NA 4 4 3 4

  I tried with the statemnt with BOX WHEN conditions and DECODE UPDATE, but could not succeed, can someone please help

  To do this, if you use my statement in response #11 box (Re: Re: comparison of multi-column and update a column based on the comparison of)

• Same page, two regions based on the same conflicts taskflow

  I have a page and I understand two regions based on the same workflow, at the start of region renderes ok, but then they don't are never refreshed, it seems like a conflict.
  
  I hope you can help me, thanks and sorry for my English...
  
  Published by: Jocelyn on 2012-ene-18 09:13

  Hello

  Well, I don't understand the question "no refresh" you mention. However, you did it that the workflow is isolated and does not share its DataControl? If you share the DataControl then region 1 and 2 show the same data and are just one and same.

  Frank

• In the form of table-update a column based on the other

  Greetings,
  
  I want to update a column based on the value of another column in a tabular presentation. What should I use? Calculation or validation process?
  
  -Vatsa

  Yes, get rid of the update of "pims_component" - this is the cause of the error table mutation - and simply set

  : new.state_ind: = Ls_state;

  CITY

• Update, one of the two columns based on a condition

  I have this example table:

  Lead_ID	Mailed_Date	Campaign of	Model	MPI	MP2
  100	August 2, 12	Travel_Check	US_Air	null	null
  200	August 2, 12	Travel_Check

  US_Air

  1099

  null

  MP1 and MP2 columns represent mailpiece_IDs (marketing mail that was sent).  MP1 is the first piece in the mail and MP2 is the second room that receives mail. Here Lead_id 100 received no mail and Lead_id 200 received the first piece.

  I want my update to allow me to update MP1 IF MP1 is null, but if MP1 is worth, I want MP2 to update. So if I update with a new post 2000 article ID the result should look like this after the update.  Lead_ID 100 received a piece of mail, and 200 Lead_ID received two parts:

  Lead_ID	Mailed_Date	Campaign of	Model	MPI	MP2
  100	August 2, 12	Travel_Check	US_Air	2000

  null

  200

  August 2, 12

  Travel_Check

  US_Air

  1099

  2000

  I tried this case and I thought that maybe I could choose the field with COALESCE, but which doesn't seem to work.   Can anyone help?

  Hello

  Here's another way to do it:

  UPDATE yourtable

  Mp1 SET = NVL (mp1, 2000)

  mp2 = NVL2 (mp1, mp2 2000)

  WHERE LESS (mp1, mp2) IS NULL

  ;

  In any case, there are 2 columns that could be changed, so you should have 2 columns listed in the SET clause.  It does not matter that one or these columns will be always equal to itself.

• unique index for several columns

  Hi all
  
  We have a requirement for our application, to add a single search box, which searches more than 1 table of different columns. The way in which we have now implemented, is the following (simplified example):
  Select *.
  WCP
  where instr(ename,:SEARCH) > 0
  or instr(job,:SEARCH) > 0
  or...
  
  This approach is relatively slow, of course. I want to change it, using the text of the Oracle. Can you give me advice what kind of index, must be used? Our requirement:
  -index must continue to be up-to-date (a few seconds)
  -research must be
  -case insensitive preference
  -number of columns to be indexed: aprox. 20 in a table
  
  I heard once you can make a function, with all the columns you want to index. This function generates an xml document, and you can use this function to create an Oracle text index. However, I can't seem to find how I can implement that. Or is there a better aproach?
  
  Thanks again for your help!

  You can use a multi_column_datastore, that generates xml documents as you describe in the scenes. You can also use the transactional option or sync (on validation) with optimization. See the simplified example with only two columns below that matches what you provided. You can find further information and examples for the multi_column_datastore in the online documentation.

  SCOTT@orcl_11gR2> begin
    2    ctx_ddl.create_preference ('emp_ds', 'multi_column_datastore');
    3    ctx_ddl.set_attribute ('emp_ds', 'columns', 'ename, job');
    4  end;
    5  /
  
  PL/SQL procedure successfully completed.
  
  SCOTT@orcl_11gR2> alter table emp add (any_column varchar2(1))
    2  /
  
  Table altered.
  
  SCOTT@orcl_11gR2> create index emp_idx
    2  on emp (any_column)
    3  indextype is ctxsys.context
    4  parameters
    5    ('datastore emp_ds
    6        transactional')
    7  /
  
  Index created.
  
  SCOTT@orcl_11gR2> variable search varchar2(100)
  SCOTT@orcl_11gR2> exec :search := 'CLARK'
  
  PL/SQL procedure successfully completed.
  
  SCOTT@orcl_11gR2> select ename, job from emp
    2  where  contains (any_column, :search) > 0
    3  /
  
  ENAME      JOB
  ---------- ---------
  CLARK      MANAGER
  
  1 row selected.
  
  SCOTT@orcl_11gR2> exec :search := 'CLERK'
  
  PL/SQL procedure successfully completed.
  
  SCOTT@orcl_11gR2> select ename, job from emp
    2  where  contains (any_column, :search) > 0
    3  /
  
  ENAME      JOB
  ---------- ---------
  SMITH      CLERK
  ADAMS      CLERK
  JAMES      CLERK
  MILLER     CLERK
  
  4 rows selected.
  

• Report view columns based on the selection of the month

  Hello
  
  I have an interactive report.
  In my report, I show the columns below. Let's say the show for months salary of the EMP for this month
  
  EmpID, ename, jan, Feb, mar, Apr, may, June, July, August, Sept, oct, nov, dec
  
  I have two selection lists (to filter the report) in my interface. P1_MONTH and P1_YEAR. These have static LOVs.
  Jan (Display) - 01 (Return)
  (Display) - 02 Feb (Return) and so on.
  
  I am facing problem while hiding under certain conditions the columns.
  For example, if the user selects the month "Mar." Then the report should display
  
  EmpID, ename, jan, Feb, mar
  
  Another example, if the month is "Jun" then
  
  EmpID, ename, jan, Feb, mar, Apr, may, June
  
  So he must hide under certain conditions the columns based on selection.
  I put the conditional 'view' in the column of the report for "expression of the ar-ticle/column value 1 = expression 2'.
  
  P1_MONTH (in the expression 1)
  + 06,07,08,09,10,11,12 (in the expression for the month of June selection 2) +.
  
  But doesn't the show/hide.
  Am I missing something? Please correct me if I'm wrong.
  
  I use APEX 4.1 & g 10 DB
  
  Thank you in advance,
  Daniel

  This

  value of item/column expression 1 = expression 2
  

  is equivalent to a PL/SQL expression, such as

  :P1_MONTH = '06,07,08,09,10,11,12'
  

  So maybe, select a PL/SQL expression condition and write something like that for the month of March - if I interpret correctly the your needs.

  TO_NUMBER(:P1_MONTH) <= 3
  

  Scott

• How ItemRenderer change for DataGrid column based on the value of this column?

  Hello! I am trying to create a DataGrid that has a component Button to register when the value of this column is 'Open', then a label saying full when the value of this column is "Full". But Im having a hell of a time he find.
  
  Here's my MXML with 2 different inline installation of components for different rendering engines point 2:
  
  <? XML version = "1.0" encoding = "utf-8"? >
  "" < mx:Application xmlns:mx = ' http://www.adobe.com/2006/mxml ' layout = "absolute" >
  
  < mx:Component id = "RegFull" >
  < mx:VBox horizontalAlign = "center" verticalAlign = "middle" >
  < mx:Label id = 'Full text' text = "Full" / >
  < / mx:VBox >
  < / mx:Component >
  
  < mx:Component id = "RegButton" >
  < mx:VBox horizontalAlign = "center" verticalAlign = "middle" >
  < mx:Button label = "Save" / >
  < / mx:VBox >
  < / mx:Component >
  
  < mx:DataGrid id = "scGrid" width = "100%" height = "100%" number of lines = "4" >
  
  < mx:dataProvider >
  < mx:Object label = "Status" data = 'Open' / >
  < mx:Object label = "Status" data = "Full" / >
  < mx:Object label = "Status" data = 'Open' / >
  < mx:Object label = "Status" data = "Full" / >
  < mx:Object label = "Status" data = 'Open' / >
  < mx:Object label = "Status" data = "Full" / >
  < / mx:dataProvider >
  
  < mx:columns >
  < mx:DataGridColumn id = "RegCol" headerText = "Reg" dataField = "data" / >
  < / mx:columns >
  
  < / mx:DataGrid >
  < / mx:Application >
  
  How can I dynamically use the right of itemrenderer based on the value of the field? THANKS FOR ANY HELP PROVIDED!
  
  The best
  Stephen

  You can have more than 1 column renderer engine. There are two ways to do this. One way would be to use States. A State for each possible value in the data. Since you either want a button (data == 'open') or a label (data == 'Full') by using the States wouldn't be a bad choice.

  Alternatively, you can use a canvas instead of a VBox. Make a label and a button with horizontalCenter = "0" "0" = red to make them each other. Make it visible according to the data value:

  
  
  
  
  
  

  where dataField is the value of the property dataField on this converter DataGridColumn.

• Compare two columns and get the percentage of cells that match

  Hello

  I'm looking to take two columns of data from different tables in the same document, which should have a high enough percentage of boxes and have another cell tabulate the corresponding percentage. I can the of seem to figure out how to do this, but it seems really possible.

  Any help is greatly appreciated.

  Thank you!

  

  C1 = A1 = B1

  It's shorthand dethrone select cell C1 and type (or copy and paste it here) the formula:

  = A1 = B1

  Select cell C1, copy

  Select the column C, paste

  Select cell E2, and then type 'TRUE '.

  Select cell E3 and then type "FALSE".

  F2 = COUNTIF ($C, E2)

  F3 = COUNTIF ($C, E3)

  G2 = F2÷SUM(F$2:F$3)

  G3 = F3÷SUM(F$2:F$3)

• Hide column based on the State in BI Publisher Excel Template

  Hello

  I have a requirement to hide a column based on certain conditions in the Excel of BI Publisher model. I am newbie for BI Publisher excel template. Anyone can provide some advice on this?

  I need this emergency. Any kind of help would be very appreciated.

  Thank you

  Renu

  Hi Renu,

  Recently, I came across a similar requirement, and I went to without BEEP features to hide and show columns during execution, unlike the RTF.

  But I did it in Excel model with the help of the Macro. It works fine for me.

  Please see below

  1. based on a cell value 'A', I have to hide the column

  2 written a simple if statement in macro to get the value of 'A' and do the hide/show

  3. you need to do this only in "ThisWorkbook" macro is executed when the excel output is open.

  

  Thank you

  Mani

• How to create a dynamic RTF report that creates dynamic columns based on the selection of dynamic columns in a table?

  Hi all

  Suppose I have table, whose structure changes frequently on a daily basis.

  For example. / / desc my_table gives you after the name of the column the day 1

  SQL > my_table DESC;

  Output

  Name

  Age

  Phone

  
  

  Day 2, two other columns are added, viz, address and salary.

  SQL > my_table DESC;

  Output

  Name

  Age

  Phone

  Address

  Salary

  
  

  Now, I want to create a Dynnamic RTF report which made extracting data from all columns from my_table daily. For this, I have defined a simultaneous program with XML output type and include in annex a data/definition of data model that takes XML as input and gives the final result of the conc program in EXCEL layout. I am able to do that for a constant number of columns, but don't know how to do it when the number of columns to display dynamically changes.

  For 1 day my XML file should be like this.

  <?xml version="1.0" encoding="UTF-8"?>
  <dataTemplate name="XYZ" description="iExpenses Report" Version="1.0">
  <dataQuery>
  <sqlStatement name="Q2">
  <![CDATA[
  SELECT Name
  ,Age
  ,Phone
  FROM my_table
  ]]>
  </sqlStatement>
  </dataQuery>
  <dataStructure>
  <group name="G_my_table" source="Q2">
    <element name="Name" value="Name" />
    <element name="Age" value="Age" />
    <element name="Phone" value="Phone" />
  </group>
  </dataStructure>
  </dataTemplate>
  
  

  And my day 1, EXCEL output RTF model should be like this.
  Name age phone

  Swapnill 23 12345

  For 2 days my XML file should be like this. With 2 new columns selected in the SELECT clause.

  <?xml version="1.0" encoding="UTF-8"?>
  <dataTemplate name="XYZ" description="iExpenses Report" Version="1.0">
  <dataQuery>
  <sqlStatement name="Q2">
  <![CDATA[
  SELECT Name
  ,Age
  ,Phone
  ,Address
  ,Salary
  FROM my_table
  ]]>
  </sqlStatement>
  </dataQuery>
  <dataStructure>
  <group name="G_my_table" source="Q2">
    <element name="Name" value="Name" />
    <element name="Age" value="Age" />
    <element name="Phone" value="Phone" />
    <element name="Address" value="Address" />
    <element name="Salary" value="Salary" />
  </group>
  </dataStructure>
  </dataTemplate>
  
  

  And my day 2, exit EXCEL model RTF should be like this.
  Name address telephone pay

  23 12345 Madrid 100000 Swapnill

  Now, I don't know below things.

  • Make the dynamic XML as we did in the day 1 there are 3 columns in the SELECT statement and the day 2, 5 columns. I want to create a dynamic XML which must not be changed if the new columns are added into my_table. I don't know how to create this query and also create their corresponding items below.
  • Make the RTF model dyanamic as day 1 there are 3 exit EXCEL columns and the day 2, 5 columns. I want to create a dynamic RTF model that would display all the columns selected in XML dynamic. I don't know how the RTF will create new XML tags and how it will know where to place them in the report. Means, I can create model RTF day 1, by loading the XML data for 3 columns and place 3 tags XML in the model. But how he will create and place the tags for the new columns the day 2?

  Hope so, you got my requirement, it's difficult. Please let me know how I can implement the necessary solution using the RTF dynamically without any manual intervention.

  Kind regards

  Patricia K.

  Post edited by: SwapnilK

  Hi guys,.

  I was able to solve above the requirement.

  I created a procedure that would create & update (attached to the data definition) XML file dynamically for each race. This dynamic XML contains the SQL statement for the data query that is built dynamically. I am updating this XML file using XDOLoader utility to the definition of data. Then run my program customized to generate the excel output.

  Exit excel retrieves correct number of columns dynamically (3 on Day1 and Day2 5), with corresponding data records.

  Kind regards

  Patricia K.