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Stored procedures
HUnlockRecNum (Function)
In french: HDébloqueNumEnr
ODBCOLE DBNot available with these kinds of connection
Unlocks a record locked by:
  • the HLockRecNum function,
  • a read function used with a locking parameter (for example, HRead used with the hLockWrite or hLockReadWrite constant).
Remark: HUnlockRecNum does not unblock a record locked by another application.
Versions 16 and later
WINDEVJava This function is now available for Java applications.
Java This function is available for HFSQL data files only. It is not available for the data files accessed by JDBC.
New in version 16
WINDEVJava This function is now available for Java applications.
Java This function is available for HFSQL data files only. It is not available for the data files accessed by JDBC.
WINDEVJava This function is now available for Java applications.
Java This function is available for HFSQL data files only. It is not available for the data files accessed by JDBC.
Versions 17 and later
iPhone/iPad This function is now available for iPhone/iPad applications.
New in version 17
iPhone/iPad This function is now available for iPhone/iPad applications.
iPhone/iPad This function is now available for iPhone/iPad applications.
Versions 18 and later
Android Widget This function is now available in Android widget mode.
Android This function is now available for Android applications (for HFSQL data files).
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Android Widget This function is now available in Android widget mode.
Android This function is now available for Android applications (for HFSQL data files).
Universal Windows 10 App This function is now available in Windows Store apps mode.
Android Widget This function is now available in Android widget mode.
Android This function is now available for Android applications (for HFSQL data files).
Universal Windows 10 App This function is now available in Windows Store apps mode.
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.
Remark: From version 19, HFSQL is the new name of HyperFileSQL.
Example
// Lock
HLockRecNum(CUSTOMER, hRecNumCurrent, hLockReadWrite)
// Modify the record
...
// Unlock
HUnlockRecNum(CUSTOMER, hRecNumCurrent)
Syntax
<Result> = HUnlockRecNum([<Data file> [, <Record number>]])
<Result>: Boolean
  • True if the record was unlocked,
  • False if a problem occurs. HError is used to identify the error.
<Data file>: Optional character string
Name of the data file used.
If this name is not specified, HUnlockRecNum will use the last data file used by the last HFSQL function (function starting with "H").
<Record number>: Optional integer
Number of the record to unlock.
If this number is not specified (or is equal to 0 or to the hCurrentRecNum constant), HUnlockRecNum will read the current record.
Native Connectors (Native Accesses) HUnlockRecNum unlocks the current record only. You cannot specify a record number other than the current one (to specify the current record number, use the hRecNumCurrent constant).
Remarks
HUnlockRecNum has no effect if:
  • The data file is in single-user mode (see HMode).
  • The record is not locked.
Component: wd270hf.dll
Minimum version required
  • Version 9
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