PC SOFT

WINDEVWEBDEV AND WINDEV MOBILE
ONLINE HELP

Home | Sign in | English UK
New WINDEV, WEBDEV, WINDEV Mobile 25 feature!
WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
WindowsLinuxPHPWEBDEV - Browser code
WINDEV Mobile
AndroidAndroid Widget iPhone/iPadApple WatchUniversal Windows 10 AppWindows Mobile
Others
Stored procedures
Returns the number of duplicates for a given key item. This number of duplicates was calculated during the last calculation of statistics.
Versions 18 and later
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Universal Windows 10 App This function is now available in Windows Store apps mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Remark: From version 19, HFSQL is the new name of HyperFileSQL.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Versions 22 and later
iPhone/iPad This function is now available for iPhone/iPad applications.
Android Widget This function is now available in Android Widget mode.
Android This function is now available for Android applications.
New in version 22
iPhone/iPad This function is now available for iPhone/iPad applications.
Android Widget This function is now available in Android Widget mode.
Android This function is now available for Android applications.
iPhone/iPad This function is now available for iPhone/iPad applications.
Android Widget This function is now available in Android Widget mode.
Android This function is now available for Android applications.
Example
// Creation of duplicate statistics on the NomCli key of the data file Client
ResStat = Customer.StatNbDuplicates(CustName)
Syntax
<Result> = <Source>.StatNbDuplicates([<Key item>])
<Result>: Integer
Number of duplicates found. Corresponds to the hInvalidRecNum constant if:
  • the statistics have never been calculated for the specified item.
  • the statistics are not supported by the specified type of item. HFSQL allows you to perform statistical calculations on key items only.
<Source>: Type corresponding to the specified source
Name of data file used.
<Key item>: Optional character string (with or without quotes)
Name of key item used to perform the statistical calculation. If this name is not specified, <Source>.StatNbDuplicates will use the last item used by the last HFSQL management function (function starting with "H").
Remarks
  • The statistics can also be updated by <Source>.Index. <Source>.Index and <Source>.StatCalculate are the only two functions that update the statistics of the data file.
  • In the HFSQL Classic data files, the statistical calculations can only be performed on key items.
  • The number of duplicates corresponds to the total numer of entries less the number of distinct values. For example, if the entries are the numbers: 1, 3, 3, 5, 5, 5, 6, 7, 7, 7, 8, 9, then the number of duplicates is 12-7 = 5.
Component : wd250hf.dll
Minimum version required
  • Version 25
This page is also available for…
Comments
Click [Add] to post a comment