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Version: 2025

Report based on an SQL query with data accessed via a connection (ODBC, etc.)
A report based on an SQL query with data accessed via a connection can print records from a database accessible via a specific ODBC driver or via a Native Connector...
Overloading a WLanguage function or using a WLanguage function in an SQL query
WLanguage includes the "WL" keyword...
HSuggestKeyEnd (Function)
Finishes collecting information on executed queries.
SQL functions for accessing the external databases
List of SQL functions used to access the external databases
HExecuteSQLQuery (Function)
Initializes a query written in SQL language and declares this query to the HFSQL engine.
HSuggestKeyStart (Function)
Starts collecting information on executed queries.
Cross-database queries
An SQL query can operate on different databases...
HExecuteSQLQueryAsynchronous (Function)
Executes an SQL query asynchronously.
<Source>.ExecuteSQLQuery (Function)
Initializes a query written in SQL language and declares this query to the HFSQL engine.
HSuggestKey (Function)
Returns a list of keys to add to data files to improve query performance.
<Source>.ExecuteSQLQueryAsynchronous (Function)
Executes an SQL query asynchronously.
Creating a query in SQL code
The query editor allows you to create a query by typing SQL code...
Optional connection information
When defining the connections in the data model editor or when defining the connections through programming, you have the ability to specifier the optional connection information......
Native MariaDB Connector: Requirements and remarks
This page presents the main aspects and requirements of the Native MariaDB Connector......
Native MySQL Connector: Specific features and remarks
Remarks and specific features of the Native MySQL Connector...
Native Progress Connector: Specific features and remarks
Remarks and specific features of Native Progress Connector......
Native DB2 Connector: Specific features and remarks
The following paragraphs present the main aspects and specific features of the Native DB2 Connector......
HFSQL Control Center: Overview
The HFSQL Control Center is used to manage the different HFSQL databases (Network, Mobile, Client/Server) found in the company......
Native Sybase Connector: Output value of a stored procedure run on the server
The Native Sybase Connector (also called Native Sybase Access) is used to: specify the input values during the call to a stored procedure. retrieve the output values after a call to a stored procedure....
Native Sybase Connector: Specific features and remarks
The following paragraphs present the main aspects and specific features of the Native Sybase Connector (also called Native Sybase Access)......
MDL file (kept for backward compatibility): Pattern description
The MDL file is the file used to generate a RAD window......
HOpenConnection (Example)
Usage example of the HOpenConnection function
LooperRecNum (Function)
Returns the number of the current record in a Looper control based on a data file.
HListProvider (Function)
Returns the list of OLE DB providers and/or Native Connectors installed on the current computer....
HCloseConnection (Example)
Usage example of the HCloseConenction function
HChangeConnection (Example)
Usage example of the HChangeConnection function
SQLConnect (Example)
Usage example of the SQLConnect function
HSortView (Function)
Sorts an HFSQL view by creating an index on a view item. This function uses the former view mechanism.
H.NumRec (Variable)
Contains the number of the physical record loaded in memory (which means the number of the last record read).
Using data from an external database
WINDEV Tutorial - External database Using data from an external database - 40 min
HDescribeConnection (Example)
Usage example of the HDescribeConnection function
HExecuteQuery (Example)
Usage example of the HExecuteQuery function
SQLFirst (Example)
Usage example of the SQLFirst function
Native Oracle Connector: Specific features and remarks
Remarks and specific features of the Native Oracle Connector...
Configuring the connection with WDORAINS (optional setting)
For backward compatibility with the earlier versions of Native Oracle Connector (also called Native Oracle Access), the connection can still be configured in WDORAINS (supplied with Native Oracle Connector)......
XMLExecuteXPath (Example)
Usage example of the XMLExecuteXPath function
HExecuteSQLQuery (Example)
Usage example of the HExecuteSQLQuery function