How to convert a string to a data type double

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• [Oracle 8i] How to convert a string (timestamp) in a date?

  I find it difficult to know how to convert a string to a date time stamp (or possibly several).
  
  The timestamp is 20 positions, character (NOT NULL, CHAR (20))
  in the format: YYYYMMDDHHMMSSUUUUUU
  where Y = year, M = month, D = day, M = Minutes, S = seconds and U = microseconds
  
  The reason why I want to convert it is so that I can compare a timestamp to each other (that is, I want to be able to find the MIN (timestamp), MAX (timestamp) and make comparisons of inequality).
  
  Is this possible?
  
  Thanks in advance for the help on this!

  Hello

  As Damorgan said, if all you want to do is find which is the earlier or later, then you can just compare the strings: they are in a format where it works.

  If you need to do other things, such as compare to today date or see the difference between two of your lines of days, you will need to convert it to date. (He has no reason to convert them to numbers).

  A new TIMESTAMP data type, which manages the fractions of a second, was introduced in Oracle 9.
  Since you use Oracle 8 (depending on your subject line), or it must be
  (1) ignores the microseconds, or
  (2) use a separate column for microseconds.

  Whatever it is, use TO_DATE to convert the first 14 characters in DATE:

  TO_DATE ( SUBSTR (txt, 1, 14)
          , 'YYYYMMDDHH24MISS'
          )
  

  where txt is your column of type CHAR.
  To convert microseconds to a number (between 0 and 999999):

  TO_NUMBER (SUBSTR (txt, 15))
  

• How to convert a string and use a rope as a property?

  I have an array in the following format:

  {ownsCar: 'true', ownsBike: 'true', ownsHouse: 'true'}

  {ownsCar: ownsBike 'false',: 'true', ownsHouse: 'true'}

  {ownsCar: 'true', ownsBike: ownsHouse 'false',: 'true'}

  etc ............

  And I need to test against each element, for example

  If...

  myDataGrid ["myItem"] .ownsCar is object (myCheckbox) .label

  ... then

  If...

  myDataGrid ["myItem"] .ownsBike is object (myCheckbox) .label

  ... then

  If...

  myDataGrid ["myItem"] .ownsHouse is object (myCheckbox) .label

  ... then

  But I have to build my application where the property (for example 'ownsCar', 'ownsBike', 'ownsHouse') is a variable such as:

  If...

  myDataGrid ["myItem"] .myProperty is object (myCheckbox) .label

  ... then

  I would like to browse my table, by counting the number of items and then use each element as a property.

  How to convert the string (for example, "ownsCar") in a property "myProperty"?

  Thanks in advance

  Chris

  OK, if I got this right what you need to do is introspection.

  The easiest way to do this would be:

  for ( var propertyName:String in myObject ) {
       // Do what you need with this here:
       myObject[ propertyName ];
  }
  

• 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 convert a string to a number?

  How to convert a numeric string to a number of TestStand?

  Use Val().

  Example Val (Locals.myString)

• How to convert the string with numbers in U8 with ascii

  Hello

  I have a string with only numbers 0. 9 paper.

  Now, I want to convert to table-U8.

  He works here, but now the problem: How can I change each character to its ascii value?

  Example:

  entry: 123 (string)

  output: x 31, x 32, x 33 (U8-array)

  Thanks for the help

  It's very easy

  String to Byte Array Function
  Have the Palette: string/array/path Conversion functions

  Converts a string to an array of unsigned bytes. Each byte in the array has the ASCII value of the character corresponding to the string.

• How to convert NTFS to FAT32 without data loss?

  Hello
  I want to format a computer with 4 logical partition, where C: is partitioned FAT (Windows NT Server), and other (D:, E: and F :) are on NTFS.

  Now I want to install Win98 on it, which requires the hard drive or FAT32 partitioned. How to do that without losing valuable data in all 3 NTFS partitioned drives.

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  I think you are very lucky.

  Aomei technology is giving away NTFS to FAT32 Converter Pro Edition 1.5 which can help you convert NTFS to FAT32 without data loss. The offer is limited from 18/05/2011 ~ 23/05/2011.
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• How to convert the string in milliseconds

  Hello

  Please suggest how I can convert a string (October 9, 1989) in milliseconds...

  If it has a certain format, you can use HttpDateParser, otherwise create a calendar object, set the relevant values and get the time to it.

• How to convert a string literal function function valid

  Hello
  
  I have a situation where I need to get the built-in (sysdate/sysdate-1/sysdate-2) as variables. As the variable is taken as a string, it is considered as a string, not a function. Is it possible to convert the string literal in valid function.
  
  Here is an example for better understanding. I used v_var to store the 'sysdate-1 "in the form of string literal. Try to change the value.
  
  
  */*-------------------------------------------------------------------------------------*/*
  declare
  
  v_var varchar2 (20): = ' sysdate-1';
  date of v_var2;
  
  Start
  
  Select v_var in the double v_var2;
  
  dbms_output.put_line ('v_var2: ' | v_var2);
  
  end;
  
  */*-------------------------------------------------------------------------------------*/*
  
  
  Thanks in advance

  Or

  SQL>  var str varchar2(20)
  SQL>  exec :str := 'sysdate - 1'
  PL/SQL procedure successfully completed.
  
  SQL>  select trim(dbms_xmlgen.getxmltype('select ' || :str || ' s from dual').extract('//text()')) str from dual
  /
  STR
  ------------------------
  15.07.09
  1 row selected.
  

• How to convert the string to a full decimal point and left shift

  Hey guys I tried to convert gps string to an integer, like this

  A string that is 2467.8976 and I need to convert it to a similar integer as point of this 2467.8979 so that I can shift the decimal point to the left (24.678979) which i coudnt do it with the chain. It's just been my 2 weeks with the labview so be gentle. Thank you

  Hi Awais07,

  Once you have created an indicator that signals the output of parsing the string, right-click on this indicator > display... Format > increase the value of the digit 9

  Kind regards

  Lennard.C

• How to convert a string to byte array

  Hello

  I want to convert a string with a hexadecimal number in the array of bytes, this string includes a cutting-edge information, but I don't want to add this tip to arry bytes.

  detailed information please see the photo. I hope someone can give me some instructions, thank you very much.

  

  The accepted solution of Giedrius.S is not correct, based on the image shown in the first post. That the solution will not eliminate the spaces before the tip, and the string to byte array to convert individual characters '0', '8', 'space', '9', etc. for them to byte values. The right solution, based on the image below:

  

• How to auto-off rounded af:inputText liaison with the data type Double?

  Hello Experts,

  If a component af:inputText is bind with a field whose data type is Double I saw if I enter 12.0 in the text field, and then it changes automatically to 12. Another example: 12,010 turns into 12.01.

  My requirement is to maintain the value that it has been seized. But the validation client side of the field, that ADF provides by default, should be present. I mean that ADF throws the error message if I get 12a.01; as it is not a Double.

  How can I achieve this?

  Any pointer would be vary useful.

  JDeveloper version: 11.1.1.6.0
  

  No, what I mean is that if you keep the zeros on the right, the data type is not a Double.

  Once you save 12.010 and read it again, you will see zero residue. You would see only the zero if you or the other say the number still show for example 3 fraction digits or if you store the value as a string that will store the entry as is and use a regular expression validator to ensure that only valid numbers are entered.

  In the first case ever number has 3 digits of fraction for example 12-> 12.000 and 12.010-> 12.010

  In summary, you will need to decide which way to go. If the data type must be Double, then there is no zero leakage or you must use the minFractionDigits which will always use the zero leak until the number of spezified. If the does not like what you have to store strings.

  Timo

• The data type double in CT that is converted to PDM

  Hi all
  In short, to be able to remove channels and groups of a PDM file, I convert the file to a tdm, delete channel or group storage using screws and the convert to PDM. The problem is when tdms is converted to tdm, double data types (64-bit) became simple types (32-bit). Original tdms file has double inside, but CT and resulting tdms files have singles.
  Attachment VI made things I mentioned above. After execution of the it, I open tdms - 1.tdms in Excel with importing tdm (v3.3.0.0) and data type is DT_DOUBLE. But in the files tdm.tdm and PDM - 2.tdms, data types are DT_FLOAT. So the question is, is there a way to prevent duplicate converted to singles?

  Note: I convert the files tdms tdm, screw that removes channels and storage groups do not work with the PDM format.
  p.s. I'm on LV2011.

  Hello

  This is a known bug, CAR 399895. We'll fix it in the future.

  In your LabVIEW, you can try to change the next VI.

  \\vi.lib\Platform\storage\utility\_DP2TDMData.VI, in the case of "DT_DOUBLE", please select instance Float64.

  Hope this helps,

  Mavis

• How to convert DSB files to their original type file

  I did an emergency using Dell DataSafe backup.  Now all my files are on the C: as an ORD file.  How to convert them back to their original documents?

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  Since you used the Dell software to do the backup, contact Dell technical support

  http://support.Dell.com/

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• How can I find what is the data type of a column of a Table in oracle or SQL?

  (a) what happens if I want to know the type of data in a specific column in the Table.

  (b) how to find the column data types?

  Can someone help me please. I am new to oracle and try to learn a few tricks

  Hello

  How to do

  SQL > desc

  SQL> desc emp
   Name                                      Null?    Type
   ----------------------------------------- -------- ----------------------------
   EMPNO                                     NOT NULL NUMBER(4)
   ENAME                                              VARCHAR2(10)
   JOB                                                VARCHAR2(9)
   MGR                                                NUMBER(4)
   HIREDATE                                           DATE
   SAL                                                NUMBER(7,2)
   COMM                                               NUMBER(7,2)
   DEPTNO                                             NUMBER(2)