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...
User Groupware and Client/Server tables
Applications using the User Groupware are compatible with HFSQL databases in Client/Server mode...
How to backup HFSQL Client/Server databases?
The backup of the HFSQL Client/Server databases can be performed ...
Restoring an HFSQL Client/Server database
A backup of an HFSQL Client/Server database can be restored at any time...
Using the Control Centers in Client/Server mode
All the Control Centers provided with WINDEV, WEBDEV and WINDEV Mobile use the same database...
HFSQL Client/Server functions (prefix syntax)
Several HFSQL functions are used to manage the HFSQL Client/Server data...
HFSQL Client/Server functions
Several HFSQL functions are used to manage the HFSQL Client/Server data...
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...
HFSQL Client/Server: Overview
You have the ability to create applications that access the HFSQL Client/Server databases...
User Groupware and Client/Server tables
An application that uses the User Groupware can be used with an HFSQL database in Client/Server mode...
HFSQL Client/Server: Backing up databases
Like for any database, backups of your HFSQL Client/Server databases must be performed on a regular basis...
HManageServerUpdate (Function)
Allows you to manage the automatic update of HFSQL Client/Server servers and to define how often to check for updates.
<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.
Managing the load balancing (dynamic load balancing on server)
The server that is hosting a HFSQL database engine can be very busy...
Unalterable tables
This feature is used to signal that a table cannot be modified after writing...
<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.
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, ...
WDLog: Backup of HFSQL tables
WDLog allows you to save all the HFSQL tables used by a WINDEV or WEBDEV application...
<Source>.CheckUnaltered (Function)
Checks that one or all records in an unalterable table have not been modified (e.g. with a hexadecimal editor).
HCheckUnaltered (Function)
Checks that one or all records in an unalterable table have not been modified (e.g. with a hexadecimal editor).
HFSQL Cluster functions
The following functions are used to manage an HFSQL cluster
<Connection variable>.SendMessageToClient (Function)
Displays a message on the client computers.
HSendMessageToClient (Function)
Displays a message on the client computers.
<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.
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.
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.
<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 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.
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.
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 table (.FIC file).
This function is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 2.
HInfoDatabaseProperty (Function)
Used to find out the properties of a database on an HFSQL server.
HPriorityClient (Function)
Modifies the priority of a client application.
HListParameter (Function)
Returns the list of parameters saved from the stored procedures on the server.
HDeleteFile (Function)
Deletes the HFSQL data files (.fic, .ndx, .ftx and .mmo files if they exist) from the server.
HPriority (Function)
Finds out and modifies the priority of the calling application.
HInfoFileProperty (Function)
Allows you to find out the properties of a data file located in an HFSQL server.
HInfoServerProperty (Function)
Allows you to find out the properties of an HFSQL server.
HModifyScheduledOptimization (Function)
Modifies a scheduled optimization task on the HFSQL server defined by the connection.
<Connection variable>.AddScheduling (Function)
Adds a new scheduled item to an HFSQL server: scheduled task (stored procedure), backup, optimization or refresh of a materialized view.
<Connection variable>.DeleteScheduling (Function)
Delete a scheduled item on an HFSQL server: scheduled task (stored procedure), backup, optimization, refresh of a materialized view.
<Connection variable>.ExecuteScheduling (Function)
Immediately executes a scheduled item regardless of its scheduling: scheduled task (stored procedure), backup, optimization, refresh of a materialized view.
<Connection variable>.ModifyScheduling (Function)
Modify a scheduled item on an HFSQL server: scheduled task (stored procedure), backup, optimization, refresh of a materialized view.
<Connection variable>.ListScheduling (Function)
Lists scheduled elements defined on an HFSQL server: scheduled tasks (stored procedure), backup, optimization, refresh of a materialized view.
<Connection variable>.TransactionSavepoint (Function)
Declares a transaction savepoint.
Automatic data masking
Data masking is a process that transforms the data in an item that will be displayed to the user......
HListConnection (Function)
Returns the list of connections currently described in the application: connections described in the data model editor (for the main database schema and, if necessary, additional database schemas). connections described by programming (with functions HDescribeConnection or HOpenConnection)....
<Connection variable>.RetrieveBackup (Function)
Retrieves locally the content of a compressed backup (in ZIP format) performed on an HFSQL server.
HExecuteScheduling (Function)
Immediately executes a scheduled item regardless of its scheduling: scheduled task (stored procedure), backup, optimization, refresh of a materialized view.
HTransactionSavepoint (Function)
Declares a transaction savepoint.