ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Select query description window
The description window of a select query includes several sections...
Creating an insert query
An insert query (corresponding SQL statement...
Describing a query
Once a query is created, all the characteristics of this query can be modified at any time...
Example for creating a select query
This help page explains how to create two select queries...
Query creation mode: independent or embedded query
The query editor proposes two methods for creating a 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...
HSuggestKeyEnd (Function)
Finishes collecting information on executed queries.
Handling the versions of a window, report, query or project
When creating and developing the different elements of a project (window, query, report, project, ...
Operations in a Select query
The query editor allows you to perform operations on the values of an item...
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.
Joins between the tables of a select query
When several tables are used in a query, the query editor automatically searches for the links between these tables defined in the database schema...
Project comparator
Comparing two windows (two pages, two reports, two classes, ...
Optimizing the query execution
The query editor allows you to optimize the execution speed of one or more queries...
Creating a query
Two methods can be used to create a query...
Creating a select query
A select query (corresponding SQL statement...
HSuggestKey (Function)
Returns a list of keys to add to tables to improve query performance.
Test of a query
The query editor allows you to run the test of query result...
Creating a combining query
A combining query (corresponding SQL statement: UNION) ...
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...
Creating a delete query
A delete query (corresponding SQL statement...
Code history
The code history is used to...
Selection conditions of a query
The selection conditions of records are applied to the items used in the queries...
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...
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...
HSuggestKeyStart (Function)
Starts collecting information on executed queries.
Environment of the query editor
When creating a class in the code editor, the Constructor and Destructor methods are automatically created by default...
Items used in a select query
A query created in the query editor can contain several types of items...
Creating an update query
An Update query (SQL UPDATE statement) is used to modify the records in a database file...
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...
ScreenToFile (Function)
Automatically updates: the values of a data file's items in memory with the values from the controls in the window. the value of the WLanguage variables with the value of the window controls. This function is also available for WEBDEV pages....
Responsive Web Design: Managing a header bar
This help page explains how to create a page containing a header bar in Responsive Web Design mode......
IFrame control
IFrame is an HTML concept......
WDMap: Overview
WDMap is a tool used to view and handle a data file while developing an application......
Controls of a dynamic page
Several types of controls can be handled in a dynamic page ......
HReadPrevious (Function)
Sets the position on the previous record of a file according to a browse item.
Manipulating WEBDEV menu options
The context menu of menu options allows you to perform all the operations required to define a drop-down menu......
Window for quick selection
You are searching for a project element? You only know part of its name? Press [CTRL]+[E] to open the quick selection window......
XInitial (Property)
The XInitial property is used to: Get the X-coordinate: of a control (position on the X-axis) when opening the window or the page. of a window (position on X-axis) when opening the window. Change the X-coordinate of a control anchored "to the right" (position on the X-axis) when opening the window. Get the X-coordinate of a control in relation to its block (position in millimeters on the X-axis) when opening the report....
Using data from an external database
WINDEV Tutorial - External database Using data from an external database - 40 min
SourceFromPage (Function)
Automatically updates: the value of the items in a data file with the value of the controls in the page. the value of the WLanguage variables with the value of the page controls....
WDReplic: Overview
WDReplic is a tool used to manage the replication of data between several computers that use the same application......
The different types of windows
The following types of windows can be created in a WINDEV application......
Creating a table in a report
Tables can be created in a report......
CtCacheSize (Property)
The CtCacheSize property is used to determine and change the maximum number of records that can be stored in the cache of the Native MySQL Connector.
Creating your own User Macro-Codes
The User Macro-Codes are sections of WLanguage code allowing the end user to customize his application......
MemoryCurrency (Property)
The MemoryCurrency property gets and sets the currency used when manipulating a "Currency + Euro" control programmatically.
The Check Box control
A Check Box can correspond to......
Creating and using a REST Webservice
A REST WebService is a program hosted on a server containing functions accessible via HTTP requests......
2. Performance profiler
WINDEV Tutorial: Optimizing a project Lesson 2 - Performance profiler - 15 min