ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Installing an HFSQL Client/Server server with an application
When creating the setup program of a WINDEV application using HFSQL Client/Server tables, the wizard allows you to...
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 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...
How to backup HFSQL Client/Server databases?
The backup of the HFSQL Client/Server databases can be performed ...
HFSQL Client/Server functions
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...
HFSQL Client/Server: Port management
The ports used by the HFSQL Client/Server server...
Managing rights on HFSQL Client/Server
To ensure data security and confidentiality, some actions may be restricted to a group of users...
HFSQL Client/Server: Backing up databases
Like for any database, backups of your HFSQL Client/Server databases must be performed on a regular basis...
HFSQL Client/Server: Scheduled tasks
The scheduled tasks are used to schedule automatic tasks...
HFSQL Client/Server functions (prefix syntax)
Several HFSQL functions are used to manage the HFSQL Client/Server data...
HReindexAsynchronous (Function)
Rebuilds the index of an HFSQL Client/Server table (".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.
Overview of HFSQL Cluster
HFSQL Cluster is a database server intended to be deployed on several servers...
<HFSQL connection>.StatCalculateAsynchronous (Function)
Gets various statistics on the keys of an HFSQL Client/Server table.
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 table (".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.
<HFSQL connection>.CheckMemoAsynchronous (Function)
Checks the structural integrity of memos in an HFSQL Client/Server table.
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
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, ...
HFSQL Cluster functions
The following functions are used to manage an HFSQL cluster
Limitations of WINDEV, WEBDEV and WINDEV Mobile
A structure is a custom type of data...
Installing and configuring HFSQL Cluster
Required configuration and overview for installing HFSQL Cluster.
Managing the load balancing (dynamic load balancing on server)
The server that is hosting a HFSQL database engine can be very busy...
<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 table (.FIC file).
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...
Using the Control Centers in Client/Server mode
All the Control Centers provided with WINDEV, WEBDEV and WINDEV Mobile use the same database...
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...
HAddScheduledOptimization (Function)
Adds an optimization task of HFSQL Client/Server tables.
HCheckMemoAsynchronous (Function)
Checks the structural integrity of memos in an HFSQL Client/Server table.
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...
HStatCalculateAsynchronous (Function)
Gets various statistics on the keys of an HFSQL Client/Server table.
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
HCheckIndexAsynchronous (Function)
Checks that the data contained in the index file (.NDX file) correctly references the data contained in the HFSQL Client/Server table (.FIC file).
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
<Connection variable>.AddScheduledOptimization (Function)
Adds an optimization task of HFSQL Client/Server tables.
HExportJSONString (Function)
Exports the records from a table (HFSQL or OLE DB), view, or query to a JSON string.
Accessing HFSQL tables via SAMBA on Linux
To access HFSQL tables via Samba on Linux, special settings are required......
HRecordToString (Function)
Converts the content of the current record to string (in a table, HFSQL view, query, etc.).
hScheduledOptimization (Variable type)
The hScheduledOptimization type is used to programmatically manage a scheduled optimization task on an HFSQL server.
HRSExecute (Function)
Immediately execute periodic replication between HFSQL servers: replication is triggered ahead of schedule.
<Source>ExportJSON String (Function)
Exports the records from a table (HFSQL or OLE DB), view, or query to a JSON string.
<Organizer>.Display (Function)
Reinitializes the content of an Organizer control from its data source (HFSQL data file for example).
HListSpatialKeys (Function)
Returns the spatial keys of a table (used in a query or view) recognized by the HFSQL engine.
<Source>.RecordToString (Function)
Converts the content of the current record to string (in a table, HFSQL view, query, etc.).
Java application and WINDEV
A Java application is an application entirely compiled in Java......
SQL Server Native 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 database schema......
HListAnalysis (Function)
Returns the list of WINDEV or WEBDEV analyses (in HFSQL Classic format) available in a given directory.
OrgDisplay (Function)
Reinitializes the content of an Organization Chart control from its data source (HFSQL data file for example).
<Organization Chart>.Display (Function)
Reinitializes the content of an Organization Chart control from its data source (HFSQL data file for example).
fDataDir (Function)
Returns the full path of the directory of HFSQL data files specified by the user when installing the application.
H.VisibleAutoIndexing (Variable)
Indicates whether the indexing window must be displayed during the automatic reindexing of HFSQL data files.
H.TemporaryDirectory (Variable)
Allows you to force the directory used to store the temporary files when reindexing the HFSQL data files.
<Source>.ExportCSV (Function)
Exports the records found in a table (HFSQL or OLE DB), a view or a query to a CSV file.
FilterCondition (Property)
The FilterCondition property gets the selection condition set by HFilter on a table, HFSQL view, or query.
<Source>.ExportXLS (Function)
Exports records from a table (HFSQL or OLE DB), view or query to an Excel file (XLSX).
HExportXML (Function)
Exports the records found in a table (HFSQL or OLE DB), view or query to an XML file.