ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

OLE DB: System requirements
To handle a database via OLE DB, the following elements must be installed on the development computer and on the deployment computer...
Examples for using the OLE DB provider for HFSQL
Reinitializes the content of an Organization Chart control from its data source (HFSQL data file for example).
OLE DB provider for HFSQL
The OLE DB provider on HFSQL is used to access an HFSQL database (Classic or Client/Server) from an external software that manages the accesses by OLE DB...
Optional connection information
When defining the connections in the data model editor or when defining the connections programmatically, you have the ability to specifier the optional connection information...
Database access: summary
WINDEV and WEBDEV support different SQL query execution modes depending on how the database was accessed....
SQLConnect (Function)
Connects the current application to a database that must be interrogated via SQL.
SQLConnectWS (Function)
Connects the current application to a database that will be queried by SQL through a web service proxy (SOAP).
HDescribeConnection (Function)
Describes a new connection to an external database.
HListProvider (Function)
Returns the list of OLE DB providers and/or Native Connectors installed on the current computer.
Test of a query
The query editor allows you to run the test of query result......
SQLExec (Function)
Names and runs an SQL query.
HDelete (Function)
Deletes a record from a data file (query or view).
HRestorePosition (Function)
Restores the previously saved context of a file (function HSavePosition): record in progress, filter, playback pointers.
HSetDuplicates (Function)
Enables or disables the management of duplicates on a unique key.
HLinkMemo (Function)
Used to associate a file with a binary memo item or to cancel the existing link between a file and a binary item.
HFilterIdentical (Function)
Defines and enables a filter used to find the exact value of a string item.
SQLAssociate (Function)
Automatically associates each column of the query result with a control or with a variable of the application.
HNext (Function)
Sets the position on the next data file record according to a browse item.
HAdd (Function)
Adds: the record found in memory into the table (query or view). the record found in a Record variable into the table (query or view)....
WDMap: Characteristics of the files found in a database
WDMap is used to get various characteristics specific to......
The triggers
A trigger is a WLanguage procedure automatically called by the HFSQL engine whenever a modification is performed (addition, deletion, modification, ......
HLast (Function)
Sets the position on the last record of a table according to a browse item.
HFilterIncludedBetween (Function)
Defines and enables an "Included between" filter on a file, view or query.
SQLFirst (Function)
Positions on the first row of the query result.
HFirst (Function)
Sets the position on the first record of a table according to the specified browse item.
HFilterStartsWith (Function)
Defines and enables a "Start with" filter on a file, view or query.
HExecuteSQLQuery (Function)
Initializes a query written in SQL language and declares this query to the HFSQL engine.