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 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

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...
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: Overview
You have the ability to create applications that access the HFSQL Client/Server databases...
User Groupware and Client/Server data files
An application using User Groupware can be used with a HyperFileSQL 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...
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 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...
User Groupware and Client/Server data files
An application that uses the User Groupware can be used with an HFSQL database in Client/Server mode...
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...
HCheckUnaltered (Function)
Checks that one or all records in an unalterable data file have not been modified (e.g. with a hexadecimal editor).
<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.
<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.
Unalterable data files
This feature is used to signal that a data file cannot be modified after writing...
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.
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.
HSendMessageToClient (Function)
Displays a message on the client computers.
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 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.
HFSQL Cluster functions
The following functions are used to manage an HFSQL cluster
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.
<Connection variable>.SendMessageToClient (Function)
Displays a message on the client computers.
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.
WDLog: Backup of HFSQL data files
WDLog allows you to save all the HFSQL data files used by a WINDEV or WEBDEV application...
<Source>.CheckUnaltered (Function)
Checks that one or all records in an unalterable data file have not been modified (e.g. with a hexadecimal editor).
<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.
Managing the load balancing (dynamic load balancing on server)
The server that is hosting a HFSQL database engine can be very busy......
<Connection variable>.ModifyScheduledOptimization (Function)
Modifies a scheduled optimization task on the HFSQL server defined by the connection.
HListConnection (Function)
Returns the list of connections currently described in the application.
HInfoFileProperty (Function)
Allows you to find out the properties of a data file located in 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.
HInfoDatabaseProperty (Function)
Used to find out the properties of a database on an HFSQL server.
HPriority (Function)
Finds out and modifies the priority of the calling application.
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>.ExecuteScheduling (Function)
Immediately runs a scheduled task regardless of its schedule: stored procedure, backup, optimization, refresh of materialized view....
<Connection variable>.ListScheduling (Function)
Lists the scheduled tasks defined on an HFSQL server: stored procedure, backup, optimization, refresh of materialized view....
<Connection variable>.AddScheduling (Function)
Creates a scheduled task on an HFSQL server: stored procedure, backup, optimization, refresh of materialized view....
<Connection variable>.ModifyScheduling (Function)
Modifies a scheduled task on an HFSQL server: stored procedure, backup, optimization, refresh of materialized view....
<HFSQL connection>.TransactionSavepoint (Function)
Declares a transaction savepoint.
<Connection variable>.RetrieveBackup (Function)
Retrieves locally the content of a compressed backup (in ZIP format) performed on an HFSQL server.
<Connection variable>.DeleteScheduling (Function)
Deletes a scheduled task found on an HFSQL server: stored procedure, backup, optimization, refresh of materialized view....
HDeleteScheduling (Function)
Deletes a scheduled task found on an HFSQL server: stored procedure, backup, optimization, refresh of materialized view....
HModifyScheduling (Function)
Modifies a scheduled task on an HFSQL server: stored procedure, backup, optimization, refresh of materialized view....
HListScheduling (Function)
Lists the scheduled tasks defined on an HFSQL server: stored procedure, backup, optimization, refresh of materialized view....
HExecuteScheduling (Function)
Immediately runs a scheduled task regardless of its schedule: stored procedure, backup, optimization, refresh of materialized view....
HRetrieveBackup (Function)
Retrieves locally the content of a compressed backup (in ZIP format) performed on an HFSQL server.
HTransactionSavepoint (Function)
Declares a transaction savepoint.
HAddScheduling (Function)
Creates a scheduled task on an HFSQL server: stored procedure, backup, optimization, refresh of materialized view....