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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...
MaxValue (Property)
The MaxValue property is used to: get and set the top value of a report based on a data file. get the maximum value of the current filter. get the maximum value of a data series in a chart. get and set the maximum value for some types of controls....
Managing the HFSQL servers
The HFSQL Control Center allows you to fully manage HFSQL servers......
AnchorRateRight (Property)
The AnchorRateRight property is used to: Find out the anchor rate when a control moves on the horizontal axis. Modify the anchor rate when a control moves on the horizontal axis....
AnchorRateHeight (Property)
The AnchorRateHeight property is used to: Find out the vertical anchor rate of a control. Modify the vertical anchor rate of a control....
AnchorRateBottom (Property)
The AnchorRateBottom property is used to: Find out the anchor rate when a control moves on the vertical axis. Modify the anchor rate when a control moves on the vertical axis....
Report based on an Organizer control
A report based on an Organizer control is used to directly print the information displayed in the Organizer control...
Report based on a Scheduler control
A report based on a Scheduler control is used to directly print the information displayed in the Scheduler control......
Width (Property)
The Width property gets and changes the width: of a control or block in a report. of a control (found in a window), window, column found in a table or column found in a list box (including listview). of a control (found in a page), column found in a table or column found in a list box. The control can be overlayable or not....
XMLRead (Function)
Returns the value of an XML element or the value of the attribute for an XML element.
2. Projects in practice
Discover the main operations that can be performed on a project....
1. Discover WINDEV
WINDEV Tutorial: WINDEV overview Lesson 1 - Discover WINDEV - 5 min
Report templates
WINDEV, WINDEV Mobile and WEBDEV allow you to create report templates......
MinValue (Property)
The MinValue property is used to: get and set the bottom value of a report based on a data file. get the minimum value of the current filter. get the minimum value of a data series in a chart. get and set the minimum value for some types of controls....
14. Controls in practice
Initializes or reinitializes a replication defined by the replication editor (ReplicEdit)....
KeyType (Property)
The KeyType property is used to set the characteristics of a key item.
Native Oracle Connector: Specific features and remarks
Remarks and specific features of the Native Oracle Connector...
The "Internal report" control
The "Internal report" controls are used to print several reports (secondary reports) in a single report (main report) without programming......
Various constants
List of various constants used by the constants WINDEV functions....
Spreadsheet control in a window
The spreadsheet is one of the most often used business tools. The Spreadsheet control is used to include a spreadsheet in your WINDEV windows....
2. My first window
WINDEV Tutorial: WINDEV overview Lesson 2 - My first window - 30 min