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 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

HFSQL Client/Server: Scheduled tasks
The scheduled tasks are used to schedule automatic tasks...
HFSQL Client/Server functions
Several HFSQL functions are used to manage the HFSQL Client/Server data...
Managing rights on HFSQL Client/Server
To ensure data security and confidentiality, some actions may be restricted to a group of users...
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...
HFSQL Client/Server database: Recommendations
This help page presents the main recommendations for optimizing the security and performance of an HFSQL Client/Server database according to the constraints and desired features...
Stored procedures and queries (HFSQL Client/Server)
The stored procedures are used to simplify the development and the maintenance of your applications by factorizing the code...
HFSQL Client/Server functions (prefix syntax)
Several HFSQL functions are used to manage the HFSQL Client/Server data...
Restoring an HFSQL Client/Server database
A backup of an HFSQL Client/Server database can be restored at any time...
How to backup HFSQL Client/Server databases?
The backup of the HFSQL Client/Server databases can be performed ...
HFSQL Client/Server: Port management
The ports used by the HFSQL Client/Server server...
HFSQL Client/Server: Backing up databases
Like for any database, backups of your HFSQL Client/Server databases must be performed on a regular basis...
Limitations of WINDEV, WEBDEV and WINDEV Mobile
Using the Control Centers in Client/Server mode
All the Control Centers provided with WINDEV, WEBDEV and WINDEV Mobile use the same database...
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, ...
HCheckMemoAsynchronous (Function)
Checks the structural integrity of memos in an HFSQL Client/Server data file.
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
Remote HFSQL Administrator: Overview
The remote HFSQL administrator is a WEBDEV site installed with the WEBDEV application server and used to remotely manage the HFSQL Client/Server databases installed on the Web server...
HCheckIndexAsynchronous (Function)
Checks that the data contained in the index file (.NDX file) correctly references the data contained in the HFSQL Client/Server data file (.FIC file).
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
<HFSQL connection>.StatCalculateAsynchronous (Function)
Gets various statistics on the keys of an HFSQL Client/Server data file.
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
Authentication via Active Directory
Kerberos is an authentication mode based on the use of tickets and secret keys...
HReindexAsynchronous (Function)
Rebuilds the index of an HFSQL Client/Server data file (".NDX" file). This operation is asynchronous, i.e., it is performed on the server and does not block the client side.
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
Installing and configuring HFSQL Cluster
Required configuration and overview for installing HFSQL Cluster.
HFSQL Cluster functions
The following functions are used to manage an HFSQL cluster
<Connection variable>.AddScheduledOptimization (Function)
Adds an optimization task of HFSQL Client/Server data files.
Overview of HFSQL Cluster
HFSQL Cluster is a database server intended to be deployed on several servers...
HAddScheduledOptimization (Function)
Adds an optimization task of HFSQL Client/Server data files.
Managing the load balancing (dynamic load balancing on server)
The server that is hosting a HFSQL database engine can be very busy...
<HFSQL connection>.CheckMemoAsynchronous (Function)
Checks the structural integrity of memos in an HFSQL Client/Server data file.
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
HStatCalculateAsynchronous (Function)
Gets various statistics on the keys of an HFSQL Client/Server data file.
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
<HFSQL connection>.CheckIndexAsynchronous (Function)
Checks that the data contained in the index file (.NDX file) correctly references the data contained in the HFSQL Client/Server data file (.FIC file).
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
<HFSQL connection>.ReindexAsynchronous (Function)
Rebuilds the index of an HFSQL Client/Server data file (".NDX" file). This operation is asynchronous, i.e., it is performed on the server and does not block the client side.
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
Debugging a connection to an HFSQL server
The stored procedures and the triggers are debugged from the environment, with real execution on the server...
<Connection variable>.DeleteQuery (Function)
Deletes a query (used by stored procedures) from an HFSQL server.
<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...
HError (Function)
Returns the number of the last error triggered by the HFSQL engine.
HDeleteQuery (Function)
Deletes a query (used by stored procedures) from an HFSQL server.
<Connection variable>.RSModifyConfig (Function)
Modifies some parameters of an existing replication between two HFSQL servers.
<Source>.DeleteAll (Function)
Deletes all records from a data file, an HFSQL view or a query.
SQL view
An SQL view is a virtual data source defined by an SQL query......
Docker image of the HFSQL server
From version 22, a Docker container with the HFSQL server is available in Docker Hub......
WDHFDiff - Use
WDHFDiff is used to compare......
HRSAddConfig (Function)
Adds a replication between two HFSQL server onto the master server.
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.
HCheckServerUpdate (Function)
Checks for the latest version of the HFSQL server that can be automatically updated.
<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....
Directory (Property)
The Directory property is used to manage the physical directory of HFSQL files.
DescribedDirectory (Property)
The DescribedDirectory property is used to manage the physical directory of HFSQL files.
HListTrigger (Function)
Returns the list of triggers applied to one or more HFSQL data files.
<Connection variable>.RSAddConfig (Function)
Adds a replication between two HFSQL server onto the master server.
<Connection variable>.CheckServerUpdate (Function)
Checks for the latest version of the HFSQL server that can be automatically updated.
HErrorInfo (Function)
Returns a detailed information about the last error triggered by the HFSQL engine.
Automatic server update
The HFSQL Control Center is used to implement the automatic server update......
4. HFSQL Classic
Native SQL Server Connector: Programming with HFSQL functions
To use an SQL Server database with Native Connector, the structure of SQL Server tables must be imported into the data model analysis......