ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Creating a delete query
A delete query (corresponding SQL statement...
HSuggestKey (Function)
Returns a list of keys to add to data files to improve query performance.
Operations in a Select query
The query editor allows you to perform operations on the values of an item...
Selection conditions of a query
The selection conditions of records are applied to the items used in the queries...
HSuggestKeyEnd (Function)
Finishes collecting information on executed queries.
Project comparator
Comparing two windows (two pages, two reports, two classes, ...
Creating a query
Two methods can be used to create a query...
Items used in a select query
A query created in the query editor can contain several types of items...
Sort order of records found in a select query
To make the result of a query easier to read, the records can be sorted according to one or more items...
Handling the versions of a window, report, query or project
When creating and developing the different elements of a project (window, query, report, project, ...
Create an insert query
An insert query (corresponding SQL statement...
Carrying over the differences from an element to another one
The project comparator is used to compare two elements and to list the differences found...
Joins between the data files of a select query
When several data files are used in a query, the query editor automatically searches for the links between these files defined in the analysis...
Code history
The code history is used to...
Environment of the query editor
Creating a select query
A select query (corresponding SQL statement...
Query creation mode: independent or embedded query
The query editor proposes two methods for creating a query...
HSuggestKeyStart (Function)
Starts collecting information on executed queries.
Describing a query
Once a query is created, all the characteristics of this query can be modified at any time...
Optimizing the query execution
The query editor allows you to optimize the execution speed of one or more queries...
Select query description window
The description window of a select query includes several sections...
Creating a combining query
A combining query (corresponding SQL statement: UNION) ...
Example for creating a select query
This help page explains how to create two select queries...
Modifying the values displayed in the result of a select query
In the result of a select query, you have the ability to only display...
Test of a query
The query editor allows you to run the test of query result...
Select query: Displaying the first/last n records
The editor of Select queries is used to limit the number of records that will be displayed in the result of the query.
Query: Displaying the records corresponding to a given period
When a "Date" item is found in the query, you have the ability to only select the records corresponding to a given period...
Creating an update query
An Update query (SQL UPDATE statement) is used to modify the records in a database file...
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...
Use (Function)
Opens a WINDEV window and closes all the other windows that were opened beforehand.
The Combo Box control
The "Combo Box" control is used to display a list of elements and to select an element from this list......
Type of item: Secure password
"Password" items are used to securely store passwords by using a salt and a hash algorithm......
Compile (Function)
Dynamically compiles an Procedure whose source code is provided (dynamic compilation).
"Project explorer" pane
The "Project explorer" pane is used to simplify the development environment of WINDEV, WEBDEV and WINDEV Mobile......
MatchRegularExpression (Function)
Checks whether a character string matches a specific format and retrieves the different substrings that match the format.
Native Progress Connector: Specific features and remarks
Remarks and specific features of Native Progress Connector......
HCross (Function)
Crosses a record in a data file.
The HTML control
The HTML control displays HTML pages or HTML code......
GDPR: an audit of data
A new GDPR audit is available to easily identify and monitor personal data in a WINDEV, WEBDEV or WINDEV Mobile application......
Management errors specific to Native Connectors
When an HFSQL function fails (returns False for example), the corresponding error number is returned by HError......
Creating nested reports
Automatic data masking
Data masking is a process that transforms the data in an item that will be displayed to the user......
iParameterPreview (Function)
Configures the print preview: display a message regarding the resources of current computer. display or not the ribbon panes (as well as the buttons found). the export options available in the mini preview window....
Sharing elements with a WINDEV application
iPreview (Example)
Usage example of the iPreview function
iParameterViewer (Function)
Configures the report viewer.
SQLTransaction (Example)
Usage example of the SQLTransaction function
Unalterable (Property)
The Unalterable property is used to configure the unalterability of a data file: the data file cannot be modified; only additions can be made.
OpenSister (Function)
Opens a non-modal sibling window.
Size (Property)
The Size property is used to determine and change the size of an element.
Native PostgreSQL Connector: Specific features and remarks
Remarks and specific features of Native PostgreSQL Connector......
NbDescribedThumbnail (Property)
The NbDescribedThumbnail property is used to get the number of thumbnails expected for an item.
ParallelTaskExecute (Function)
Triggers the execution of a parallel task.
ControlFirst (Function)
Indicates the name of the first field specified in the tab order for the specified window.