Similar Questions

• How do I edit/change data type on the report which has been selected by mistake

  
  Hello

  I've created a report in the APEX and a column is in error because the data type of a supposed to be a varchar2 column, but somehow the report was created with a data type Date. I want to change the data type without re-creating the whole report. Can anyone help? I tried to edit the report but could not be able to understand.

  Help...

  I found a solution for this, I thank you.

• Change data type for the column in a table - Oracle 8i

  Team,
  
  I need to change a VARCHAR2 column in number.
  
  ALTER table xyz change number abc;
  
  By giving the above statement, it says I need empty this column before you change.
  
  I can't change the data type before emptying this column.
  
  Please indicate any other solution. Give me some suggestions.
  
  Empty the column for me here BIG task.

  user11081688 wrote:
  I can't change the data type before emptying this column.

  Not according to the documentation:

  You can change the data type of any column or decrease the size of the entire column if all rows in the column contains NULL values.

  Please indicate any other solution. Give me some suggestions.

  You can add another column with the correct data type.

  ALTER TABLE xyz ADD COLUMN def NUMBER;
  UPDATE TABLE xyz SET def = TO_NUMBER(abc);
  ALTER TABLE xyz DROP COLUMN abc;
  ALTER TABLE xyz ADD COLUMN abc NUMBER;
  UPDATE TABLE xyz SET abc = def;
  ALTER TABEL xyz DROP COLUMN xyz;
  

  If I remember correctly, Oracle 8i does not support the change of name of column if this solution is a bit more complicated than 9i and above. Another option would be to create a new table with CREATE TABLE AS... SELECT, drop the old one and rename a new one to the old.

• Change data type column - performance of indexes in Oracle 10 g

  Hello
  I have a table with too many lines (lines more than 2000000). I changed the data type (NUMBER of VARCHAR2) of an indexed column (the index is only for this column), using a temporary backup table:
  
  CREATE TABLE BKTABLE AS SELECT FIELD, ROWID AS IDROW ORIGNALTABLE;
  UPDATE ORIGNALTABLE SET FIELD = NULL;
  ALTER ORIGNALTABLE CHANGE THE FIELD VARCHAR2 (256);
  ORIGNALTABLE UPDATE A FIELD SET = (SELECT FIELD OF BKTABLE B WHERE B.IDROW = A.IDROW);
  
  This way worked OK.
  
  There is no performance problem knew about the ORIGNALTABLE index? Need to rebuild this index?
  
  Thks!

  Need to rebuild this index?

  YES

  ALWAYS
  View the name of the operating system (OS) & version for DB Server System.
  View the results of
  SELECT * from version $ v
  or post the Oracle version with 4 decimals

• change data type...

  Hello...
  
  Change the data type of a column... replacement... it generates the error...
  

  ERROR at line 1:
  ORA-01439: column to be modified must be empty to change datatype 

  How can I change the data type of the column, without trucating and re - insert the records...
  
  Thank you
  Baskar.l

  Baskar.l wrote:
  Hello..

  is there a way to take the table offline? and do... rather than shoot the PB... Suppose that even if it is the activity less period... is the new records inserted when you change the column will be inserted in the new column?

  Thank you
  Baskar.l

  There is no need to bring the entire base down. Choose a time of low activity and go for it!

  If you are on 10g there is a chance that it will fail with an ORA-00054 as an exclusive table lock is necessary. If not you will have to try again.

  If you are in 11g, add a column does not require an exclusive lock, but drop the column will be even if the risk is always there.

  HTH!

• Change data type of RTF model

  Hi team,
  
  I don't know if this is possible, but don't we have a way in which we can change the data type of a column of rtf model by preparing the model.
  Can you please help!
  
  Thank you
  Bhupendra
  
  Published by: Bhupendra Gupta on September 9, 2009 04:21

  It's here

  http://winrichman.blogspot.com/2009/09/delimiter-based-e-text.html

  http://winrichman.blogspot.com/search/label/BIP%20E-text

• Change the Data Type of column on large partitioned Table Tablet

  Hello

  I was tasked to change a certain NUMBER of collar to a colonel VARCHAR2

  It is usually an easy task, but I ran into several challenges due to the size of the table, the second major problem is the compression of the table.

  To begin with, the Table and index are 4.4 to and hold around 11 lines billion. That the Table is compressed, not the index.

  The first option was to add a new collar of VCHAR, update from the Col de NUM, file and then drop the colonel NUM

  
  

  We ran this test in the Test environment and because discovered Compression Table that you can only mark the column is not used, and it can only be moved permanently from the Table if you unzip the whole Table and run «...» REMOVE the UNUSED COLUMNS'.

  The second way is to create a separate Table copy with the values of the source of neck, then write to null to the source of neck, change data Type when its empty and then update the source again with the copy Table values.

  The second option, that's what I'm testing, but I work with nearly 30 million lines by daily score, inserts take very long to fill.

  How can I make faster inserts between the Source and the copy Table?

  What other channels follow to accomplish the task above?

  Concerning

  Stephan

  Nowhere in your proposed solution was necessary for you to understand why the data source changes, its as simple that to take what is ons the table (all the facts in the original post) and offering the best way on the basis of previous experience or oracle skills acquired over time.

  If you spent so much time and thought to help with a solution that you did on WHY complain, you could have provided some feasible solutions already.

  No thanks to your information irrelevant and unnecessary, I've implemented a solution already.

  1 export the Source Table

  2. create a 'replica Table' using the DDL source using a temporary table name

  3. import all Partitions in the Table new

  4. before the Cut-Over, synchronize the changes from the Source to the replica Table

  5 rename the Source

  5 rename the Table of replica for the Original Source Table name

  6. slide the original Source Table

• Change the number in Varchar2 Data Type

  Hello
  
  We have a running production applications. There is a column called home_number which is a type of data number, now called the new requirement to change of varchar2.
  
  I tried to edit the table get the below error.
  
  
  -Edit the "TECH_SOURCING_EMPLOYEE_DETAILS" table change
  -("HOME_PH_NUMBER" VARCHAR2 (1000))
  -- /
  
  -ORA-01439: column to change must be empty to change data type
  
  Please suggest me how to change the data type of column without affecting the data.
  
  Thank you
  Sudhir

  Try below, I tested in my database.

  create table tmp
  (ID NUMBER,
   HOME_NUMBER NUMBER(8));
  
  insert into tmp values(1, 9122222);
  
  alter table tmp add MY_HOME_NUMBER VARCHAR2(1000);
  
  update tmp
    set my_home_number = home_number;
  
  update tmp
     set home_number = NULL; 
  
  alter table tmp drop column home_number;   
  
  alter table tmp rename column my_home_number to home_number; 
  

• To change the type of search to a string field in the DataObject Layout

  Hi all

  I am trying to change a simple string search field type, but at the same time, I don't want to lose the contents of the field. Is it possible to BAM?

  Thank you

  Jayanthi

  Hi Anne,.

  When we have data in place, that we cannot change data - type.you can do you something like make a backup of the data using Icommand object.

  and change the type of xml data exported in importing data Object.and the same.

  It's like ricks, if the purpose of these data are interrelated with other data object or if you created reports on the same.

  try something like that when you finished taking backup of all things

  Concerning

  Shankar

• MySQL data type

  Hello
  
  location:
  I've implemented a reverse engineering of a MySQL database.
  There are different types of data, not identified by ODI (question mark in column icoin)
  
  question:
  How can I open a data type for columns?
  is there a special KM choose? What is manual to change (double-click in the coloumn and change data type < undefined > to... blob, for example)?
  
  
  Thank you
  Michael

  I recently added a blog post about adding data types to ODI. Hope it would help you to solve your problem.

  http://gurcanorhan.WordPress.com/2012/02/28/adding-datatypes-to-ODI/

  Gurcan.

• CHD: the string is used as an index of change in data type? String to double?

  Hello

  I'm new to the tiara. I'm reading the line of a channel number and then to read the data of a channel which is in the same line of another channel.

  That's why I use the SMC function but my index seems not to fit. What I need to change in the code?

  error:

  CHD (2, NOVALUE): = 785 wird die Textvariable «...» CHD (2, > N)

  Code:

   

  DIM intloop, zeilenwerte
  
  Line DIM, aktwert, index
  
  Call ChnAlloc ("zeilenwerte", lang, 1, DataTypeFloat64)          ' Create channel,  'lang' is the size of a channel
  
  index = 0
  
  index = 1 to lang
  
     index = index + 1
  
     aktwert zeit (index) =                         ' get the value that will be compared to the SOPS in the following line of code
  
     Line = PNo (myChannel, aktwert)        ' it returns the line only by comparing aktwert valued myChannel
  
     CHD (line, zeilenwerte) = intloop           '  <--->here the error. try to get the value in a line @index do String data types does not match? what do I do then?
  
  Next

  Thank you very much for your help!

  Buddhist salvation,

  It seems to me that you would be better to use "Linear Mapping" in the palette of ANALYSIS "Suitable curve", but you should be able to get your code works by passing the name of the channel in this second parameter instead of an empty string variable.  You would have noticed that if you had OPTION EXPLICIT the first line of your code - always a good idea.

  Brad Turpin

  Tiara Product Support Engineer
  National Instruments

• To change the data type of control/led

  Is it possible to change the underlying data type of the indicator or a control?  I a VI that I want to use that accepts any type of data (essentially data varriant) and display it accordingly.  I have different controls selected to display data of different types in the sense of data vs decimal boolean data vs integer, but certain types of data will be of type uint32 vs int16 vs uint64 etc..  Is it possible to programmatically change the data type, so I need to have all the combinations of indicators?

  The short answer is no. The long answer is that LabVIEW has not 'generic' controls that allow you to display any type of data (apart from the variant of course). There are several ways to address this problem, but all require you as the programmer to manage explicitly each type of data you could possibly meet. Here are some possibilities (in no particular order), please let me know if you would like to help a particular implementation of these.

  1. Force incoming data to variant, use the info option to determine the data type of the original data in a case structure (open G can do this VERY easy), have an indicator on the front panel for each type of data you want and hide those unused
  2. Use a sub-group of experts on the front panel and sub - vi call of to view specific types (that lends itself very well to encapsulate your data in a class and you leave OOP allows to expand into different types of data)
  3. Use a tab with the variant (similar to option 1) control put each kind of data in its own tab, enable only the current
  4. Do a Control-X to accept a Variant option 1 under the hood
  5. Just as a string of format and use a string indicator

  That's all I can think of right now, once again, let me know if you need more information/help on the options.

• Change the Data Type to node e/s on PXI-7841R FPGA

  I would like to change the data type for the node FPGA of e/s on my card FPGA 7841R (simulation). So far, I have raw data (I16). I want to test something with the calibrated data (FXP).

  The cRIO, you usually go to the properties of module to change the calibration mode...

  I searched 7841R documentation and could not do any weather information this calibration mode was also available on this map.

  Any tips?

  Vincent

  The new maps in the series R offer node fixed point IO (for example, the SMU-7858R), but as mentioned all the old PXI based cards R-series offer only modes of measurement I16.

  Page 22 manual R series is about how to do this conversion: http://www.ni.com/pdf/manuals/370489g.pdf#page=22

  Specifically, it notes that you can calculate the voltage by (output Code I16) * 10.0V / (32 768).

  Even if this can use FPGA resources, it records the host do the same conversions. RT old target with slow processors doing the conversion of I16 or FXP to SGL on the FPGA has saved a lot of time CPU

• Data type of Cluster change

  I could ask a question of really stupid here and to a certain extent, school boy I hope I am, but could someone tell me if its possible to change the data type of an element in the cluster? Let me explain.

  Here is a screenshot of my code:

  

  I re-read my test as a string array data that I convert to a cluster, bundle, and then sent on its merry way to do other things, but the first element of the cluster is actually a path. As you can see I currently have to ungroup everything, replace the first group access, and then re - path with the correct data types. So it's a bit messy, this used to be acceptable, because I had only two other channels of the cluster, however based on expansion now, I look at and think that there must be an easier and more elegant way to do it if I just want to change something.

  If it's the only way (or at least if no other more simple workaround) so that I could potentially keep the path one a string and make conversion to the places which need it, but it would now require a little re-coding I'd like to avoid if possible.

  I hope I don't think simply strong enough on this one.

  Bravo for research

  Mitch

  I don't know what the rest of the code and how you can change then a few options:

  1. keep everything as strings, perform the conversion path when you actually need the path.  I'll show you the trick I use to convert tables in clusters well marked below.

  2. make the cluster an object, keep the data as an array of strings and accessors treat indexing and path conversion.

  3. make the hierarchical cluster, separate the path and have a second group which is all channels.

  4. If you want you can jigger the string array and use some flattened and unflatten action.

  

  The upper part of the code snippet is a way to jigger the array of strings to get a path to the first element of a flat cluster (it wire perfectly to the rest of your code).  The below code shows how I would like to convert an array of strings to a cluster if labels are works of a useful idea, even for clusters that are given unnecessary labels such as table in the Cluster.  (Fixed sizes with Brown son clusters are easier to manage, simply Type cast to the cluster with the same types and appropriate labels).

  Judging by your original post, you know when and how to Def Type different clusters show.

• Add/change the columns of data type (scripting)

  Hello

  I am writing a script to add default columns and their values in tables. So far, for me, it is possible to add columns to an existing table in the model.

  Then, I want to add value to the data type. I discovered there is a method called getDataType(). So far, I have not found the "setter; for this property.

  Like other scripts, I started by creating a table with columns, and then using the API to read the values.

  A simplified version of my code:

  get the columns of table

  myTab var = model.getTableSet () .getByName ("T_POSITIONS");

  colArray = myTab.getElementsCollection () .toArray ();

  loop through columns

  for (i = 0; i < colArray.length; i ++) {}

  the type of var data = colArray [i] .getDataType ();

  model.getAppView () .log (colArray [i] + "a datatype" + dataType);

  colArray [i] .setDataType ("VARCHAR2 (1)");

  }

  An error occurs when I want to run this script: could not find setDataType function in the object ID.

  I can't find the right method to add/change the datatype property.

  Any information would be appreciated.

  Hi Bart,.

  Here's what's in the column in the XML file:

  
  FDB11R21
  EMPLOYEES
  FIRST_NAME
  
  2015-01-13 12:45:08 UTC
  First name of the employee. A not null column.
  HR_870
  true
  false
  1
  LOGDT024
  20 BYTE
  false
  
  

  20 BYTES

  If you need set the size in "20 BYTE" or "20 CHAR".

  Philippe