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Version: 2025

HFSQL Client/Server functions
Several HFSQL functions are used to manage the HFSQL Client/Server data...
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...
HFSQL functions (prefix syntax)
List of functions for HFSQL management
Report based on an HFSQL view
A report based on an HFSQL view is used to print records from an HFSQL Classic or Client/Server view...
HFSQL functions
List of functions for HFSQL management
Managing the HFSQL contexts in the windows and in the reports
An HFSQL context contains information relative to the data used...
<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.
<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.
HFSQL Client/Server functions (prefix syntax)
Several HFSQL functions are used to manage the HFSQL Client/Server data...
<Connection variable>.TransactionSavepoint (Function)
Declares a transaction savepoint.
<Source>.ListStopWord (Function)
Returns the list of stop words used by a full-text index.
HTransactionSavepoint (Function)
Declares a transaction savepoint.
HDescribeFile (Function)
Describes a table programmatically.
<Source>.DescribeFile (Function)
Describes a table programmatically.
HTransactionRollbackToSavepoint (Function)
Rolls the transaction back to the savepoint.
HDescribeFullTextIndex (Function)
Describes a full-text index of table created programmatically.
DB2 Native Connector: Features and notes
The following paragraphs present the main aspects and specific features of the Native DB2 Connector...
HListItem (Function)
Returns the list of items:
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.
WDHFDiff: Presentation
WDHFDiff is a tool used to compare HFSQL tables...
<Source>.ListItem (Function)
Returns the list of items in a table (query or view) recognized by the HFSQL engine. The tables defined by HDeclare, HDeclareExternal and HDescribeFile are taken into account.
Managing databases in WINDEV Java applications
This document presents the different access modes to databases from a WINDEV Java application...
Application triggers
A trigger is a WLanguage procedure automatically called by the HFSQL engine whenever a modification is performed (addition, deletion, modification, ...) on a record of a table.
<Source>.CheckIndex (Function)
Checks whether the data found in the index table (.NDX file) properly refers the data found in the table (.FIC file).
Type of field: Secure password
"Password" items are used to securely store passwords by using a salt and a hash algorithm...
Link functions
Link functions are used to link the interface with the tables and vice versa. These functions are as follows:
fDataDir (Function)
Returns the full path of the directory of HFSQL tables specified by the user when installing the application.
<Source>.QueryExecuted (Function)
Determines if a query has been executed.
File Description (Variable type)
The File Description variable is used to programmatically describe tables.
Native Oracle Connector for WINDEV and WEBDEV
WINDEV and WEBDEV offer an optional Native Oracle Connector (also called Native Oracle Access...
Comparison operators
The comparison operators can be divided into several categories...
HCheckStructure (Function)
Defines the mode for comparing tables.
Filtering a table, a view or a query
A filter is used to define through programming a selection of records corresponding to one or more criteria...
<Source>.CheckMemo (Function)
Checks the structural integrity of memos in an HFSQL table.
Limitations of WINDEV, WEBDEV and WINDEV Mobile
A structure is a custom type of data...
HQueryExecuted (Function)
Determines if a query has been executed.
HCheckMemo (Function)
Checks the structural integrity of memos in an HFSQL table.
<Source>.ExportJSON (Function)
Exports the records found in a table (HFSQL or OLE DB), view or query to a JSON file.
<Connection variable>.TransactionEnd (Function)
Validates the current transaction:
  • the modifications performed on the table since the start of transaction (HTransactionStart) are validated.
  • the transaction file is deleted (if the transaction is the last transaction in progress for a network application)
  • the records locked in read-only by the transaction are unlocked.
HExecuteQueryAsynchronous (Function)
Executes a SELECT query asynchronously.
POUR TOUT / POUR ALL instruction (table browsing)
Training FOR ALL instruction can be used to perform different types of runs...
HTransactionFree (Function)
Transforms all "in transaction" records into "normal" records if they do not belong to a transaction currently in progress.
<Source>.ExecuteQueryAsynchronous (Function)
Executes a SELECT query asynchronously.
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.
SQL commands available in an SQL query
WINDEV allows you to easily run queries in SQL code...
HTransactionInterrupted (Function)
Used to find out whether a transaction was interrupted (the transaction was neither validated nor canceled).
<Source>.ExecuteQuery (Function)
Declares a query created in the query editor to the HFSQL engine and runs this query.
<Connection variable>.TransactionRollbackToSavepoint (Function)
Rolls the transaction back to the savepoint.
Result of a query in test mode
After its execution in test mode (see Running the query test), the result of the query can be...
HTransactionEnd (Function)
Validates the current transaction:
  • the modifications performed on the table since the start of transaction (HTransactionStart) are validated.
  • the transaction file is deleted (if the transaction is the last transaction in progress for a network application)
  • the records locked in read-only by the transaction are unlocked.
HExportJSON (Function)
Exports the records found in a table (HFSQL or OLE DB), view or query to a JSON file.
HCheckIndex (Function)
Checks whether the data found in the index table (.NDX file) properly refers the data found in the table (.FIC file).
<Source>.ListFullTextIndex (Function)
Returns the list of full-text indexes of a file (a query or a view) recognized by the HFSQL engine.
Manipulating a database from a Java application
You can start developing your application as soon as the WINDEV project is defined as being a Java project...
<Source>.ExportJSONString (Function)
Exports the records from a table (HFSQL or OLE DB), view, or query to a JSON string.
<Source>.TransactionFree (Function)
Transforms all "in transaction" records into "Normal" records if they do not belong to an ongoing transaction.
HListStopWord (Function)
Returns the list of stop words used by a full-text index.
<Source>.StatNbRecRange (Function)
Returns an estimate regarding the number of entries for a given key item in a given interval of values.
HExportJSONString (Function)
Exports the records from a table (HFSQL or OLE DB), view, or query to a JSON string.
HStatNbRecRange (Function)
Returns an estimate regarding the number of entries for a given key item in a given interval of values.
Native DB2 Connector for WINDEV and WEBDEV
WINDEV and WEBDEV offer an optional Native Connector to DB2...
HExecuteQuery (Function)
Declares a query created in the query editor to the HFSQL engine and runs this query.
<Source>.CheckStructure (Function)
Defines the mode for comparing tables.
HDeactivateTrigger (Function)
Disables a trigger.
HSetDuplicates (Function)
Enables or disables the management of duplicates on a unique key.
HOpen (Function)
Opens a data file.
HRetrieveItem (Function)
Returns the content of an item found in the current record (in the data file, view, query, ...).
HClose (Function)
Closes a data file or all the data files opened by the current user: all the corresponding physical...
HToItem (Function)
Assigns the specified value to an item of the current record.
HUnlockFile (Function)
Unlocks the records of a data file: locked by HLockFile. individually locked by a locking...
HUnlockRecNum (Function)
Unlocks a record locked by: HLockRecNum, a read function used with a locking parameter (HRead...
<Source>.FileExist (Function)
Determines: whether a file exists, which means whether it was physically created (HCreation...
<Source>.ListSynonym (Function)
Returns the list of synonyms used by a full-text index.
HOpenConnection (Function)
Opens a connection to a specific database.
<Source>.ReadSeek (Function)
Sets the position on the first record whose value for a specific item is greater than or equal...
<Connection variable>.ExecuteScheduling (Function)
Immediately runs a scheduled task regardless of its schedule: stored procedure, backup,...
HErrorIntegrity (Function)
Used to check whether an integrity error occurred.
Creating, generating and deploying a web service
WINDEV and WEBDEV allow you to directly generate web services that use the SOAP technology......
HListSynonym (Function)
Returns the list of synonyms used by a full-text index.
HFileExist (Function)
Determines: whether a file exists, which means whether it was physically created (HCreation...
HReadSeek (Function)
Sets the position on the first record whose value for a specific item is greater than or equal...
Type of windows created by RAD
The wizard for window creation proposes several types of windows associated with HFSQL data...
HExecuteScheduling (Function)
Immediately runs a scheduled task regardless of its schedule: stored procedure, backup,...
<Source>.DeleteTrigger (Function)
Deletes a trigger.
<Source>.LockFile (Function)
Locks a data file and restricts the access to this data file for all other sites or applications.