ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Describing a query
Once a query is created, all the characteristics of this query can be modified at any time...
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.
Creating an update query
An Update query (SQL UPDATE statement) is used to modify the records in a database file...
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 a delete query
A delete query (corresponding SQL statement...
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...
Creating and generating an external component
A component must be created from a project containing all the elements required for the component......
Operators on character strings
The character strings can be handled by specific WLanguage functions or by the +, [[ and ]] operators......
Global and local variable
Two types of variables are available......
WINDEV Mobile Generator of skin templates: Customizing the elements
The WINDEV Mobile generator of skin templates is used to generate the necessary files for creating a custom WINDEV Mobile skin template......
Private Store for WINDEV applications
Versions 27 and later include a Private Store......
Project Management Hub: Managing tasks
The Project Management Hub allows you to define the different tasks assigned to each project contributor......
Generator of WINDEV skin templates: Customizing the elements
The generator of WINDEV skin templates is used to generate the necessary files for creating a custom skin template for the WINDEV projects......