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 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

WDLog: Restore a data file from its log file
WDLog is used to apply to a backup of a data file the different operations saved in the log of this file...
Structure of log files (HFSQL Client/Server)
The following files are automatically created when logging an HFSQL Client/Server table...
Structure of log files (HFSQL Classic)
The following files are automatically created when logging an HFSQL Classic table...
Implementing the log process in an application
Regardless of the tables used by your application (HFSQL Classic or HFSQL Client/Server), the log process can be implemented on these tables...
Log (Function)
Calculates the decimal logarithm of a numeric value.
The log process
A log is a special file that contains the history of all changes made to one or more tables over a given period of time (date the table was created, last automatic data modification, last backup created with WDLog, etc.)
WDLog: View a log file
WDLog is used to view the content of a log file...
<Source>.HistoryModification (Function)
Returns the modifications performed on one or more items of a given record. The result can be displayed in a list box or in a table to allow the user to view the modifications made to the specified file.
ServiceWriteEventLog (Function)
Writes an event into the log of Windows events.
HLogRecreate (Function)
Used to recreate an empty log.
HFConf.Ini file
The HFConf.INI file is found at server root. This file is used to define several characteristics of HFSQL Client/Server server.
WDLog: Presentation
The different operations that can be performed with WDLog are as follows...
<Source>.ChangeLogDir (Function)
Modifies the location of log files corresponding to an HFSQL table.
HInfoLog (Function)
Returns information about the server logs.
<Source>.SetLog (Function)
Enables or disables log management on a file.
<Source>.LogRestart (Function)
Restarts the logging process on a file.
<Source>.LogRecreate (Function)
Used to recreate an empty log.
HLogStop (Function)
Stops the log process of a file.
WEBDEV administrator: General configuration
The "Configuration" tab allows you to define the default connection options for WEBDEV websites located on the server and managed by the administrator...
HSetLog (Function)
Enables or disables log management on a file.
HRegenerateFile (Function)
Regenerates a table from its log.
HLogRestart (Function)
Restarts the logging process on a file.
HHistoryModification (Function)
Returns the modifications performed on one or more items of a given record. The result can be displayed in a list box or in a table to allow the user to view the modifications made to the specified file.
HRetrieveLog (Function)
Creates a text file containing the server logs between two given dates.
<Connection variable>.RetrieveLog (Function)
Creates a text file containing the server logs between two given dates.
<Source>.LogStop (Function)
Stops the log process of a file.
HChangeLogDir (Function)
Modifies the location of log files corresponding to an HFSQL table.
<Connection variable>.RegenerateFile (Function)
Regenerates a table from its log.
HComputer (Function)
Stores a unique computer number or identifier in order to use the log and transactions over the network.