ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Selection conditions of a query
The selection conditions of records are applied to the items used in the queries...
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...
HSuggestKeyStart (Function)
Starts collecting information on executed 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...
Select query description window
The description window of a select query includes several sections...
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...
How do I run a table with a filter?
How to discover WINDEV Mobile?...
LooperRecNum (Function)
Returns the number of the current record in a Looper control based on a data file.
NULL values in HFSQL
WINDEV, WEBDEV and WINDEV Mobile allow you to manage the NULL value in the items of the HFSQL data files and for all the other types of accesses (Native, OLE DB, ......
How to choose the data source of a control?
This help page presents the different data sources available for a control....
Native MariaDB Connector: Programming with HFSQL functions
To use a MariaDB database with Native Connector, the structure of MariaDB tables must be imported into the WINDEV or WEBDEV analysis......
Native MySQL Connector: Programming with HFSQL functions
To use a MySQL database with the Native Connector (or Native Access), import the structure of MySQL tables into the WINDEV or WEBDEV analysis......
SQLExec (Function)
Names and runs an SQL query.
Native PostgreSQL Connector: Programming with HFSQL functions
To use a PostgreSQL database with Native Connector (also called Native Access), the structure of PostgreSQL tables must be imported into the WINDEV or WEBDEV analysis......
TableRecNum (Function)
Returns the number of the current record in a Table control based on a data file.
Progress Native Connector: Programming with HFSQL functions
To use a Progress database with the Native Connector, you must......
Oracle Native Connector: Programming with HFSQL functions
To use an Oracle database with the Native Connector, the structure of ORACLE tables must be imported into the WINDEV or WEBDEV database schema......
SQL view
An SQL view is a virtual data source defined by an SQL query......
InReportsAndQueriesMode (Function)
Indicates whether the code is run during the test of a report or query in Reports & Queries.
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