Rounding problem number data type

Similar Questions

• Largest number of digits for the NUMBER data type?

  What length more of a NUMBER that Oracle will "support"?

  The documentation says the following:

  Limitations of the data type says:

  «Can be represented in a comprehensive precision 38 digits»

  NUMBER of Data Types says:

  "Oracle guarantees portability of numbers with precision of up to 20 digits of base-100, which equals 39 or 40 decimal digits according to the position of the decimal point."

  I realize account that if I define a column as simply NUMBER, I can insert numbers with a size up to 126 characters.  However, Oracle seems to maintain only the first 40 digits in MOST cases.  The largest number of digits, it seems to allow is 40 before it begins to be replaced by 0.

  With numbers that have more than 40 figures, Oracle will sometimes replace all numbers according to the 38th numbers with a 0 and sometimes replace 0 after the digit 39th or 40th.

  Therefore, what is the largest number of digits, can be trusted to safely store Oracle?

  This is the code I used for this testing process.

  create the table max_num (num number);

  declare

  number of l_x;

  Start

  for x in 1.200

  loop

  l_x: = x;

  insert into max_num values (rpad (1, x, 1));

  end loop;

  exception

  while others then

  dbms_output.put_line ('STOP: ' | l_x);

  dbms_output.put_line (SQLERRM);

  end;

  /

  Select num, length (replace (num, 0)) of max_num;

  What length more of a NUMBER that Oracle will "support"?

  You have already given your own answer. If 'length': the maximum number of digits is written the doc gives you the answer:

  999... (38 9's) x 10 value maximum¹²⁵

  The 38/39/40, hereinafter referred to as the doc means "significant digits". This is why rounding or truncation occurs if you provide more significant digits of 38/39/40.

  Oracle stores the numbers internally in a binary format 21 bytes using a documented structure in the doc of the OIC in the section 'NUMBER'.

  http://docs.Oracle.com/CD/E11882_01/AppDev.112/e10646/oci03typ.htm#i423684

  Oracle database stores the values of the NUMBER data type in a variable length format. The first byte is the exponent and is followed by 1 to 20 mantissa bytes. The high bit of the exponent byte is the sign bit; It is defined for positive numbers, and it is cleared for negative numbers. The lower 7 bits represent the exponent, which is a number of base-100 with an offset of 65.

  This article from doc continues to show you how to convert the internal format to the real value.

  An additional byte of 1 is used for all types of data to store the length; That's why you often see docs saying numbers can take 22 bytes.

• HO to Comapre with Number data Type

  Hello
  
  My need is to perform validation in the ValidateEntity method.
  
  How to compare the data type number:
  
  For ex: number = gatAbc();
  
  If(a>10)
  {
  throw new oaExcption...
  }
  
  But while comapring got compiler error
  
  Error (218,17): not found >(oracle.jbo.domain.Number, int) method in the abc.oracle.apps.per.irc.pqr.schema.server.XxabcEOImpl class
  
  So please tell me how to compare integer value with the Number data type
  
  Thanx

  Check with the float. It will certainly work.

  float number = Float.parseFloat(HrsPerDay); //HrsPerDay is a String and I am converting it to float 
  
  if(( number <= 0) || (number >= 21))
                     {
                          throw new OAAttrValException(OAAttrValException.TYP_VIEW_OBJECT,
                                            "xxCopyResourceVO1",
                                            rowi.getKey(),
                                            "NoOfCopies",
                                            rowi.getAttribute("NoOfCopies"),
                                            "PA",
                                            "xx_xx_COPY_POSITIVE_NUM");
                     }
  

  Here in this code I also check the hours cannot be less then 0 and 20 above.

  Thank you
  -Anil

• Convert or map Typedonnees decimal Transact-SQL for Oracle Number data type?

  MSSQL 2005
  Oracle 10.2 g
  
  In a MSSQL table, I have a column with the data type set on (decimal (1.0), null) with the values of line-1. (695 lines in total)
  
  In the Oracle table, the proposed mapped column is a number data type. When I import data, I received 695 errors with the message "invalid value for the field. How to properly convert or map Decimal (MSSQL) Transact-SQL for Oracle Number data type for a negative value?
  
  Thank you.

  How do you load data into Oracle? What tool or programming language you are using? Can you post something cause what you stated in your post should work, but there may be some ODBC, or other type of conversion factors to be taken into account.

   > create table t1 (field1  number(1,0));
  
  Table created.
  
   > insert into t1 values (-1);
  
  1 row created.
  
  UT1 > select * from t1;
  
      FIELD1
  ----------
          -1
  

  HTH - Mark D Powell.

• Data problem whith model number data type

  Hi all

  Here's a strange thing with the data model of the Editor (Oracle Business Intelligence 11.1.1.7.0 / windows 7 / Firefox).

  Create a data set of sql query with this statement "select 1.23 double." The data type of the column is whole and cannot be changed.

  So I use the cast function "select cast (1.23 v number (16.2)) double ' and now it's OK the data type is double.

  Now add a second line, change the statement like this:

  Select cast (1.23 v number (16.2)) double

  Union of all the

  Select cast (4.56 v number (16.2)) double

  If you save the template, and charge it, the type of data has changed in full!

  Anyone know why this is happening?

  The patch should be applied, but is a temporary solution:

  Select cast (d.v number (12,2)) v

  de)

  Select v 1.23 double

  Union of all the

  Select 2.34 double v

  ) d

  Thank you

• Table of functions and direct requests for NUMBER data types database

  Hello. I call a number of functions table of our Enterprise BI server, and I chose to do this by using direct database requests (I believe you can also call functions table in the physical layer of the repository, but is not what I do). The problem is that whenever I go back any number of the table function which is not a whole number (1.23, for example), BI assigns the INTEGER data type to the field rather than the data type DOUBLE, rounded so my number to the nearest integer. Here is a short example:
  
  Create these 3 database objects:
  
  CREATE or REPLACE TYPE my_row AS OBJECT (my_num NUMBER);
  
  CREATE or REPLACE TYPE my_tab AS TABLE OF THE my_row;
  
  FUNCTION to CREATE or REPLACE my_table_function RETURN my_tab
  PIPELINED IS
  BEGIN
  PIPE ROW (my_row (1.23));
  END;
  /
  
  
  Make this your request at your request Direct to database:
  
  SELECT my_num FROM table (my_table_function);
  
  
  This query returns correctly '1.23' when it is called from the database. In BI, on the other hand, it returns a value of '1' (and the field of labels an INTEGER rather than data type DOUBLE). If at the request of data Direct you change column properties-> data-> decimal from 0 to 2 Format, then it displays is not surprising "1.00". I then tried to change MY_ROW. Data type of MY_NUM by explicitly specifying the precision and no luck. BI still labels this field as an INTEGER. Then I started to try to deceive BI massaging the SQL statement itself. None of the following worked:
  
  SELECT to_number (my_num) as my_num2 FROM table (my_table_function);
  SELECT my_num2 + 0.01 as my_num3 FROM (SELECT my_num - 0.01 AS my_num2 FROM table (my_table_function));
  SELECT to_number (to_char (my_num)) as my_num2 FROM table (my_table_function);
  SELECT to_number (substr (to_char ('x' | my_num), 2)) as my_num2 FROM table (my_table_function);
  
  Now, I found a solution, but I'm surprised that I have to resort to that:
  
  SELECT * FROM (SELECT / * + NO_MERGE * / table my_num (my_table_function));
  
  Is anyone out there knows a better way to do it? The above is a hack in my opinion. :)
  
  Thanks in advance for any input.
  
  -Jim

  Yes, it's really amazing.
  But I got it.

  CREATE OR REPLACE TYPE my_row AS OBJECT (my_num NUMBER(10,2));
  

  and in your SQL:

  SELECT cast(my_num as double precision) as my_num2 FROM table(my_table_function);
  

  I have the good result and I see the numbers after the decimal point.
  Very delicate!

  Published by: gerardnico on July 7, 2009 14:55 change number (10.2) in double precision... pffff

• Question number data type

  Dear all,
  
  I have the instruction insert statement in my form. Because I'm inserting fields numbers two at a table. These two fields are of the form variables. Those that contain the data type number. In the database, we have datatype as number (14.3) for these fields. These 2 areas containing value according to the 12-digit number.
  
  Where to insert it showing me an error message such as,
  ORA-01438: value superior to the precision specified for the column.
  
  Give me advice to solve this problem.
  
  Thanks in advance,
  Lakshmi.P.

  Hello

  Number (14.3) means 11 digits and 3 decimals. Display the number you are trying to insert. It must be greater than 99,999,999,999
  or maybe, you have a problem with the decimal separator character.

  François

• Problem with data type 'Date' in Hyperion Planning V11.1.2.2

  Hello

  I created members with the date data type. However when I save the date, it disappears or comes up with a random date? One has encountered such a problem before?

  If so can you share the fix.

  Thanks in advance for your help.

  See you soon,.

  XXX

  Hello

  This problem is related to you not having is not a coherent framework for your type of date entry.

  So, go to the administration of the application and define the date format DD/MM/YYYY in the application settings and display options, under current default application settings. Then after doing that as a user, go to user preferences and display options and the date format, select the same. Or delete automatically detect them.

  I've seen this behavior if you detect automatically on the user's preferences

  Thank you

  Anthony

• Help with the problem of data type...

  Hi friends,
  
  I have a requirement. I have a warrant 2 guests (from and to). The data contained in the guests are like "Fall 2006", "spring 2006", "full of 2006", "Academic 2006"for a given year. " I have data from the year 2000 to 2008. The data type of the column duration in varchar. I have a report corresponding to this prompt. This report works well if it is not linked with the guests. If I have this tie with guests, its giving me results because in the report I gave filter as term is greater than or equal to ' fisrt_pv "(où first_pv est la variable de présentation j'ai utilisé pour mon d'invite de terme... comme second_pv sage est pour à terme rapide) and the term is less than or equal to"second_pv"."» So, if I put my guest (and) fall 2007 and (spring 2008 to) and run the report, its sends a fall 2007, Full 2000... Full2008, spring 2000... Spring 2008. It is because it is comparing the term based on letter of departure with all the other term. We know that the fall 2007 and spring 2008 are next to next semesters, is expected to see just a 2-column output. How do oracle know that?
  
  I have a term_number associated with this table numbered 1 to the spring of 2000, 2 Full, 3 for autumn 2000 2000, 4 for academic 2000... all the way up to academic 2008. I used this area to the command prompt to order because I want the guest to show as the spring of 2000, Full 2000, fall 2000 etc. instead of 2000 academic, University 2001... hope this field will be useful for you to analyze... I need your help to do this... If you need other info let me know... Thanks for your time n help...
  
  Kind regards...

  Yes. The problem is that your guests are CHAR, so the calculation "superior to" is done alphabetically rather than numerically. This digital keys.

  Create two columns to contain the term_number that match the values selected in your guests. Then the BETWEEN operator do not filter on numeric values. You can still view the CHAR values in your report, but now they will be in the range that you would expect.

• problem of data type

  Hello buddies. I'm a newbie to Labview and has started on a project involving communication with a MOS (magnetic orientation sensor)
  Basically, a hexadecimal string is read in and I want to convert it to numbers. I have a problem probably due to the type of data, since when I use "highlighted the execution", everything was fine, until it reaches the part of the division. Precision suddenly changes to 2 significant digits. Also, somehow the data could not be included in the cluster, except integral. (pressure and temperature)

  I'm sure it's because of the type of data, coz those integral is ok. I use double precision, that should be good. Please help me find the solution!

  Thanks in advance! Your help is very appreciated!

  On your front, right click on one of your numbers of 'cluster of exit', then go dpwn of 'Representation '. You have attached the VI has all the numbers as U32 (I think the last one was actually U8). It is an integer. Change what you want to DBL. Then right-click the number once again, go down to "Display Format" to get the decimal fo (or sig figs) number that you want to see. Who's going to do.

  Cameron

• Number data type used on a date column

  Hi Forum,

  I have a table with one column defined as number type.

  This column contains the date information and has an index defined on it.

  When I issue a select statement on this table based on this column for over 5 years of data, the query takes a long time.

  Select count (*) in x if date = 20070411

  The query takes a long time.

  such a situation is causing a problem when the where clause on a date, but the field filters is defined has a number type.

  All the columns in this table are defined as non-unique, but the date column seems to be more selective.

  Just curious to know if this type of data can have any impact IE do not provide the correct information to the optimizer etc.?

  Thanks for any help or advice

  Hello

  user3206995 wrote:

  Hi Forum,

  I have a table with one column defined as number type.

  This column contains the date information and has an index defined on it.

  When I issue a select statement on this table based on this column for over 5 years of data, the query takes a long time.

  Select count (*) in x if date = 20070411

  The query takes a long time.

  such a situation is causing a problem when the where clause on a date, but the field filters is defined has a number type.

  Yes; You can count on having a lot of different problems, if you are storing information on dates in NUMBER of columns.  The columns DATE to the date information.

  DATE is also a keyword from Oracle, so it's a very bad name of a column.  Use a column name as entry_date or date_column instead of just date.

  All the columns in this table are defined as non-unique, but the date column seems to be more selective.

  If

  date_column = 20070411

  is the only requirement, and it is slow, then it seems that you do not have an index on date_column, and you need to create a.

  For all performance issues, see the FAQ forum:

  Re: 3. how to improve the performance of my query? / My query is slow.

  Just curious to know if this type of data can have any impact IE do not provide the correct information to the optimizer etc.?

  It doesn't look like this problem is caused by using the wrong type of data.  Many others will, however.

• EID Studio 3.1 double problem with data type in view

  I had a view work EID Studio 3.0 and it imported to the 3.1. The first thing I did was add the FROM clause, but I get validation errors. Questions (so far) seem to be defined as a mdex:double in my metadata fields. My definition of metadata for RESOURCE_QUANTITY is as follows:

  RESOURCE_QUANTITY, quantity,mdex:double, COMP, default

  The first question I have is in my WHERE clause:

  RESOURCE_QUANTITY <>0.0 OR RESOURCE_AMOUNT <>0.0

  gives the following error: a WHERE clause: can't compare mdex:double - set and mdex:double

  I have remove the WHERE clause for the moment and try to validate and get this matter in my SELECT clause:

  SELECT SUM (RESOURCE_QUANTITY) AS QuantitySum

  gives the following error: in the computer attribute 'QuantitySum': 'SUM' is not a valid library on types (mdex:double - set) function

  What is mdex:double - value and how this field get defined in this way?

  Hi Lily,

  I think we'll see a lot of variations on this issue in the next two weeks.  The attributes handling multiple assign has been totally redesigned OEID 3.1.  So, if you have an attribute that is listed as that can have multiple values, it is declared as a set of values (couble-set) rather than a single value (double)

  For example, if RESOURCE_QUANTITY is really unique-assign (and it is declared as multi - attribute by mistake), you can just reload the data via a base line to solve the problem.  If it is in fact several entitlement, you must tell the engine in your application, how to treat the different missions that may be present for each record.

  Hope that helps, I know a lot of people are going to get pop up by the present.

  Patrick Rafferty

  http://branchbird.com

• problem of data type of loadVars

  Hello
  I have a few variables passed from flash in a LoadVars object, then be returned with the same values...
  
  I did "trace (typeof (variable));" before sending it out, telling me that "variable" is a number, which should be.
  I do it again in Loadvars.load, and it's a string...
  
  strange, because a different variable goes out as a number, and returns as a number...
  
  does anyone have an idea why this happens?
  Thank you.
  
  

  Yes, you can use the (appropriate) Number() to convert strings to numbers.

• Insert the ROWNUM in a column of data type of NUMBER table

  Hello

  I have a table that has a column named "rank" of the NUMBER data type. Basically, I want to make an analysis of top-n and insert the ROWNUM with other columns in the table.

  Definition of table1:

  CREATE TABLE

  (

  col1 VARCHAR2 (10),

  Col2 NUMBER,

  NUMBER of col3,

  rank NUMBER

  );

  INSERT INTO table1

  SELECT col1, col2, col3, rownum

  DE)

  SELECT col1, col2, col3

  FROM table2

  ORDER BY DESC of col3

  )

  WHERE rownum < = 5;

  I get an error ORA-01722: invalid number. I think the mistake is virtual ROWNUM is not data type of NUMBER, so I tried to cast as CAST (ROWNUM AS NUMBER), but it does not work, same error. Can can you please shed some light on how to convert a ROWNUM number or if the issue is something else.

  you're right, your example worked. It is an example of table I just created just to illustrate the problem, but my real table was always showing the same problem. Weird, isn't? However when I added the column names after that insert the question but statement I resolved. Adding code

  INSERT INTO TABLE1

  (col1, col2, col3, rank) - added

  SELECT col1, col2, col3, rownum

  DE)

  SELECT col1, col2, col3

  FROM table2

  ORDER BY DESC of col3

  )

  WHERE rownum<=>

  So that means ROWNUM returns number; and another confusion: why the inclusion of the column has solved my problem when it is not necessary for your example. in any case thank you.

• the number (use of space) data type

  Hi guys,.

  Just a query.

  I have a table with a data type of existing column - number (2).

  If I change it to number (8), it will take an extra space if the inserted values are from 2-digit?

  Any URL to reference?

  Thank you

  I have a table with a data type of existing column - number (2).

  If I change it to number (8), it will take an extra space if the inserted values are from 2-digit?

  Any URL to reference?

  No - the amount of space takes a NUMERIC value is based ONLY on the actual value you store.

  You can store 20 numbers that don't take no more space than would a number to two digits.

  Do not believe? Then just store values in a column NUMBER then question the values and the values of DUMP (myColumn) out and see how the actual duration and the internal representation. The value '12300000000000' will not take any space more than the value "123" since the number of SIGNIFICANT digits is the same.

  See my response in this thread of the year last for details and sample data.

  See the programmer's Guide of the OIC for details on how MANY values are stored internally.,.

  http://docs.Oracle.com/CD/E11882_01/AppDev.112/e10646/oci03typ.htm#sthref426

  Oracle database stores the values of the NUMBER data type in a variable length format. The first byte is the exponent and is followed by 1 to 20 mantissa bytes. The high bit of the exponent byte is the sign bit; It is defined for positive numbers, and it is cleared for negative numbers. The lower 7 bits represent the exponent, which is a number of base-100 with an offset of 65.

  To calculate the decimal exponent, add 65 to the exponent of base-100 and add another 128 if the number is positive. If the number is negative, do you the same thing, but eventually the bits are inverted. For example,-5 has an exponent of base-100 = 62 (0x3e). The decimal exponent is therefore (~ 0x3e)-128-65 = 0xc1-128-65 = 193-128-65 = 0.

  Each byte of the mantissa is a base-100 digit, in the 1,100 range. For positive numbers, the digit has 1 added to it. Thus, the number of mantissa for the value 5 is 6. For negative numbers, instead of adding 1, the digit is subtracted from 101. Thus, the digit of the mantissa of the number - 5 is 96 (101-5). Negative numbers have a byte containing 102 appended to the data bytes. However, negative numbers with 20 mantissa bytes do not have byte 102 end. Because the digits of the mantissa is stored in base 100, each byte can represent 2 decimal digits. The mantissa is normalized; zeros are not stored.

  Up to 20 data bytes can represent the mantissa. However, only 19 are guaranteed to be precise. 19 data bytes, each representing a base-100 digit, give a maximum precision of 38 digits for an Oracle NUMBER .