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Version: 2026

Notifications of an HFSQL server
A server may encounter problems without any user (or developer) noticing anything.
For example:
  • a scheduled task may fail,
  • an automatic backup may fail,
  • a node may become inactive in an HFSQL cluster, ...
Docker image of the HFSQL server
A Docker container with the HFSQL server is available on Docker Hub...
HOperationInProgress (Function)
Returns the list of automatic operations in progress on an HFSQL server.
HServerMaintenance (Function)
Checks and optimizes the system tables of an HFSQL server.
<Connection variable>.ServerMaintenance (Function)
Checks and optimizes the system tables of an HFSQL server.
Installing an HFSQL Client/Server server with an application
When creating the setup program of a WINDEV application using HFSQL Client/Server data files, the wizard allows you to...
HManageServerUpdate (Function)
Allows you to manage the automatic update of HFSQL Client/Server servers and to define how often to check for updates.
HStartServerUpdate (Function)
Used to immediately start the automatic server update.
<Connection variable>.StartServerUpdate (Function)
Used to immediately start the automatic server update.
<Connection variable>.OperationInProgress (Function)
Returns the list of automatic operations in progress on an HFSQL server.
InStoredProcedureMode (Function)
Indicates whether the code is run on an HFSQL server.
<Connection variable>.ManageServerUpdate (Function)
Used to manage the automatic update of HFSQL Client/Server servers by specifying the check frequency regarding the availability of updates.
HFSQL and Docker
Docker is a software platform that allows you to run applications in software containers on Linux (Docker runs like a daemon)...
HListServer (Function)
Lists the HFSQL servers installed on a computer.
<Source>.DescribeTrigger (Function)
Adds or modifies a trigger on an HFSQL data file.
ERR_BAD_CONTEXT_INVALID
Defining a unique name for the generated file
When generating a file on the Web server (PDF, HTML, ......
NetRenameFile (Function)
Renames or moves a file located on the FTP (File Transfer Protocol) or RPC (Remote Procedure Call) server created with WINDEV. This function is kept for backward compatibility....
Native PostgreSQL Connector: Programming with SQL functions
You can use SQL functions to handle the PostgreSQL database......
NetSendMessage (Function)
Triggers a Windows event on the system of an FTP (File Transfer Protocol) or RPC (Remote Procedure Call) server powered by WINDEV. This function is kept for backward compatibility....
NetRemoteMessageBox (Function)
Displays a dialog box on the screen of the FTP (File Transfer Protocol) or RPC (Remote Procedure Call) server powered by WINDEV. This function is kept for backward compatibility....
11. Choosing the action of a button/link
3. Types of dynamic sites
A dynamic site is used to display pages whose content changes. In most cases, the content of these pages is linked to a database....
Management of Google documents
Google Docs and Google Spreadsheet are the online word processing and the online spreadsheet proposed by Google......
Managing ports (serial ports, parallel ports, USB ports, etc.)
Several devices can be managed directly via a management of the ports used by these devices to communicate with the computer......
Native MariaDB Connector: Programming with SQL functions
The SQL functions can be used to handle the MariaDB database......
<Source>.CheckMemo (Function)
Checks the structural integrity of memos in an HFSQL data file.
FOR EACH/FOR ALL statement (loop through files)
The FOR EACH statement is used to run different types of HFSQL loops...
<Source>.DeleteAll (Function)
Deletes all records from a data file, an HFSQL view or a query.
Check: SMTP connectivity
The monitoring robot will try to connect to an SMTP server......
Events associated with an Organizer control
The following events are associated with Organizer controls:...
Activation key management functions
The following functions are used to manage activation keys:...
The SOAP structure
To pass parameters to a procedure run on a SOAP server, WINDEV is using the following structure......
WDHFDiff - Use
WDHFDiff is used to compare......
HClusterStart (Function)
Starts an HFSQL cluster. This cluster was stopped beforehand (by HClusterStop for example).
HClusterSynchronizationErrorInfo (Function)
Returns the error that occurred during the previous synchronization step of HFSQL cluster.
<Source>.ChangeLogDir (Function)
Modifies the location of log files corresponding to an HFSQL data file.
<Source>.CreateView (Function)
Creates an HFSQL view. This function uses the former view mechanism....
Events associated with pages
List of events associated with pages...