Distinct values on the ov Type NVARCHAR2 column

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• What is the minimum value for the data type double?

  ... a more academic question: what is the minimum value of the data type double? I thought 'double', it is the 8-byte IEEE standard and what I remember, it's + - 1.7E + - 308.  The more different number of 0 should be 1.797E - 308.

  This is why I was a little surprised when I looked at the data output of my calculation of CVI, where I found the numbers with exponents of E-319 or E-324 as the smallest value...

  But I'm sure there's an explanation :-)

  Thank you for sharing with me,

  Wolfgang

  The largest number is indeed the order of + 1.7E + 308; There are a smaller number of - 1.7E + 308. Note that this is in fact the most negative number, which is the smallest by some reckoning. For the small beach of the Exhibitor, things get a little more complicated. 1E-308 can be represented with complete accuracy and resolution, but if you're willing to lose a few bits of precision, you can go down even further. For example:

  Double x, y, z:

  x = 1E-300;

  y = 1E7;

  z = x / y;               Give 1.000000000000000E - 307

  y = 1E8;

  z = x / y;               Give 9.999999999999999E - 309

  y = 1E18;

  z = x / y;               Give 9.999987484955998E - 319

  y = 1E23;

  z = x / y;               Give 9.881312916824931E - 324

  So, as you can see, values less than 1E-308 are possible, but they become increasingly more inaccurate and should not be relied upon.

  JR

• How to get the values of the rows in a column only?

  How to get all the values in the rows of a column.
  for example, a query gives result as:
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  SELECT rtrim (xmlagg (xmlelement (e, column_name |))) (') .extract('//text () '), ',') from table_name

• 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

  
  

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  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.

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  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

• OPV with distinct values for the guests

  Hi all

  Could you get it someone please let me know where/what I'm wrong. I created the couple of OPV to get distinct values, as I can't use the view that has millions of data to load guests.

  These OPV is not directly attached to my main table but joined someother tables; After you add the guests in the responses, is to show the below error

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  I have no warnings/errors in my model. What could be the problem? Thank you for your time

  REDA

  Just go with PSV.

  Check it cool - bi.com for "what happens when we select all the column values.

  Table x got to join the only 1OPV then how can you expect comes from BI to the other 2 open-pollinated varieties? Likewise, we cannot write query!

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  Hello
  
  In the area of research start date and end date, two columns are there. These two columns are columns of text message entry. Each property of the column, I gave sysdate in the initial value and the type of data selected as Date. When I run the OAF page I can't see the value of default todays. Could you please help me on this?
  
  Thank you
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  Hi Sri

  You can use pageContext.getCurrentUserDate in the PR method and then set the attribute corresponding to this value VO.

                java.util.Date sysdate = pageContext.getCurrentUserDate();
                String convSysDate = pageContext.getOANLSServices().dateToString(sysdate);
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  AJ

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• script to change the data type of column

  Hi gurus of the oracle.

  I have 190 tables in my database.

  I have the column type CHAR of all these tables data.

  I need to change the data type of CHAR in VARCHAR2 for all these tables...

  There the script to change the data type of all tables at once?

  Please help me in this regard.

  Thanks in advance

  Concerning

  REDA

  Hello

  There is nothing built-in to Oracle SQL to do.  Maybe your front-end has certain characteristics.

  You can write dynamic SQL statements to do.  In other words, you can write a query that the output is a SQL script like this:

  ALTER TABLE TABLE_A CHANGE (A_TXT1 VARCHAR2 (5))

  A_TXT2 VARCHAR2 (10));

  ALTER TABLE TABLE_B CHANGE (B_TXT1 VARCHAR2 (5));

  with one row for each column of type CHAR.  Notice how the first line of output for each table begins with ALTER TABLE... but the later lines at the same table.  Similarly, the last line of a table (which will be the same as the first row, if the table has only one column of type CHAR) to end with a semicolon, but other lines are not.

  Here's a way to generate and execute such a dynamic script in SQL * more:

  -Disable the features that make the output easy to read, but hinder the execution
  SET FEEDBACK OFF
  SET LINESIZE 500
  SET PAGESIZE 0

  -Create fix_char.sql
  COIL c:\some_pathename\fix_char.sql

  SELECT THE CHECK BOX
  WHEN ROW_NUMBER () OVER (PARTITION BY table_name
  ORDER BY column_name
  )  = 1
  THEN 'ALTER TABLE ' | table-name
  || "CHANGE (").
  ELSE «»
  END
  ||        column_name
  ||        "VARCHAR2 (').
  ||        DATA_LENGTH
  ||        ')'
  ||        CASE
  WHEN ROW_NUMBER () OVER (PARTITION BY table_name
  ORDER BY column_name DESC
  )  = 1
  THEN '); "
  Output END AS
  Of user_tab_columns
  WHERE data_type = "CHAR".
  ORDER BY table_name
  column_name
  ;

  SPOOL OFF

  -Turn on the features that make the output easy to read, but hinder the execution
  SET FEEDBACK ON
  SET LINESIZE 80
  SET PAGESIZE 50

  -Fix_char.sql performance
  @c:\some_pathname\fix_char

  It's good to change all the CHARIOT of VARCHAR2 columns.  The CHAR data type is nothing trouble.

• change the data type of column in a view

  Hi gurus,

  Please suggest.

  
  I have been created as below in the region of production.

  CREATE OR REPLACE TYPE PROD. (OBJECT) ACE FEATURE_CUSTOM_LIST_OBJ
  TERMINAL_FEATURE_ID NUMBER (8).
  DATA_VALUE NUMBER (8)
  );
  /

  
  And the view is created below the base have the PROD. FEATURE_CUSTOM_LIST_OBJ

  CREATE OR REPLACE FORCE VIEW PROD. TERMINAL_FEATURE_TYPE
  (
  TERMINAL_FEATURE_ID,
  DATA_VALUE
  )
  AS
  SELECT
  TERMINAL_FEATURE_ID,
  DATA_VALUE
  TABLE)
  CAST)
  PROD. TERM_RELATED_REF_DATA. GET_TERMINAL_FEATURE_TYPE AS PROD. FEATURE_CUSTOM_LIST_TAB));

  Examples of data must be inserted into the display

  TERMINAL_FEATURE_ID	DATA_VALUE
  12	0
  12	1
  12	3
  11	THERE
  11	N

  If iam thinking is possible that we can change the data type of number of varchar2 data type column in a view?

  Or should I follow create or replace type as whenevr the nonnumeric data tries to bring into view
  sound by giving the number plsql for digital character conversion error since it is a number of data type here.

  I have been created as below in the region of production.

  CREATE OR REPLACE TYPE PROD. (OBJECT) ACE FEATURE_CUSTOM_LIST_OBJ

  OK - but it is a SCALAR - not a collection object

  And the view is created below the base have the PROD. FEATURE_CUSTOM_LIST_OBJ

  CREATE OR REPLACE FORCE VIEW PROD. TERMINAL_FEATURE_TYPE

  No - it isn't. Your type of object is a SCALAR - not a collection. You need create a view on a table or a collection that is treated as a table.

  DDL perspective you posted doesn't even mention your FEATURE_CUSTOM_LIST_OBJ.

  If iam thinking is possible that we can change the data type of number of varchar2 data type column in a view?

  Have you tried using TO_CHAR to format the number as a string?

• Distinct values in the Group of

  Hello
  
  How to get the number of values distinct from an RTF which is a group of loop foreach.
  
  Kind regards

  Try this

  or

• Reset the value of the SQL Server identity column according to what is being inserted

  I have a SQL Server 2008 database with a table that has a field ID that has an increment and seeds of 1.

  This great work that each new record created automatically gets a number of new and distinct.

  Now when I insert some new records that I need to be able to make this value from 10001 and then next would be 10002 etc.

  But it's only for certain insertions.

  Is there a way to control the identity seed and increment, perhaps on the fly via a query?

  If some inserts would follow 1,2,3,4,5,6,7 according to what is being inserted

  and others would follow 10001,10002,10003 according to what is being inserted.

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  Make a different field.  Don't mess with your PK.

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• Ai2: Boolean Returns the value for the data type structured is mapped to char (1)

  Hello
  
  When I try to set a function member with a return type of boolean, export options maps to a char (1) data type, you want creating a ddl like this:
  
  
  CREATE or REPLACE TYPE prifsaud.t_tasks
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  Greetings!

  Hello

  There is no support for PL/SQL types, only the database column types are supported.
  If you don't like the mapping of logical type 'Boolean' native 'char' type, then you can change it to ' tools > Types Administration. "

  Philippe

• Check the file types flat column list and column

  Hi guys!
  
  Is there an "easy way" to check if the source file names flat column and column types correspond to the types and the column name for the data store target?
  
  Kind regards
  
  PsmakR

  Hello

  Is there a way that I've used some time to validate if the data are under the target.

  Conditions:

  (1) the source file should have all the columns as "String".

  (2) all the column analyzed mapping has to go to the "staging area".

  How to: (average oracle)

  (1) create a database (by the ODI procedure) function as:

  create or replace function $ F _DATATYPE (pData in varchar2, pDatatype in varchar2, pFormat in varchar2)
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  date of $vdate;
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  BEGIN

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  This help you?

• Sequence Analyzer rules: Expressions must evaluate to a value of the expected type

  Sequence Analyzer reports all sorts of errors because I'm indexing of the results list.

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     It's also quite correct but marked as an error.

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  Can someone suggest ways to "fix" or "clean" these errors? I would prefer not to have to justify why I do nothing on errors reported by the parser to my QA group.

  You can avoid the error of the Analyzer by something similar to the following:

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  Iccsi,

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