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 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Environment of the query editor
When creating a class in the code editor, the Constructor and Destructor methods are automatically created by default...
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...
Select query description window
The description window of a select query includes several sections...
HSuggestKeyStart (Function)
Starts collecting information on executed queries.
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...
HRetrieveRecord (Function)
Returns the content of the current record (in a file, a view or a query, ...).
<Connection variable>.DeleteQuery (Function)
Deletes a query (used by stored procedures) from an HFSQL server.
XMLExecuteXPath (Function)
Executes an XPATH query: in an XML document. in an xmlDocument variable....
HDeleteQuery (Function)
Deletes a query (used by stored procedures) from an HFSQL server.
<Source>.FilterStartsWith (Function)
Defines and enables a "Start with" filter on a file, view or query.
<Source>.RetrieveRecord (Function)
Returns the content of the current record (in a file, a view or a query, ...).
HFilterStartsWith (Function)
Defines and enables a "Start with" filter on a file, view or query.
Navigation history in the code
The different editors enable you to directly view the code of an element by pressing the F2 key......
Multi-database queries
A query (typed in SQL code) can operate on different databases......
3-tier architecture
The development in "3-tier" architecture is now simplified......
BuildBrowsingTable (Function)
Creates a Table control from the items of a data file (view or query).
Filtering a table, a view or a query
A filter is used to define through programming a selection of records corresponding to one or more criteria......
Zombie data files and items
During the life of an application, items live and die......
Spelling checker in the interface
WINDEV, WEBDEV and WINDEV Mobile allow you to use the OpenOffice spelling checker in your interfaces...
Input suggestions in an Edit control
Implementing input suggestions in an Edit control is very simple......
SQL functions that can be used in SQL queries
The following SQL functions can be used on the queries written in SQL code (classified by theme)......
HFilterContains (Function)
Defines and enables a "Contains" filter on a data file, view or query.
xpathResult (Type of variable)
The xpathResult type is used it find out the result of the execution of an XPATH query.
<Source>.FilterContains (Function)
Defines and enables a "Contains" filter on a data file, view or query.
SQLGetMemo (Function)
Retrieves the content of a Memo column from the query result, for the current row.
SQLGetCol (Function)
Retrieves the content of the specified column from the query result, for the current line.
SQLColumn (Function)
Returns the characteristics of all the columns (or items): for a given table. for a given query....