ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

Conceptual Data Model (CDM)
In the MERISE methodology, the conceptual data model defines the objects and the actions that must be taken into account in the database......
WDInst: configuring the directory of the data files and the directory of the files of user groupware
The setup editor WDInst ("Tools......
Synchronizing the analysis with external databases
The analysis must be synchronized with an external database if it uses......
Query based on query
Queries can be based on items from another query......
WDInst: choosing the type of setup to generate
WDInst allows you to create several types of setup......
Entity of a CDM
To group information according the MERISE method, entities must be created......
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......
The setup editor WDInst
WDInst is a setup editor used to define the setup parameters of your application......
Generating the LDM from the CDM
To associate a CDM (Conceptual Data Model) with a project, you must generate the associated LDM (Logical Data Model)......
Running a query and handling the result in WLanguage
The selection of records performed by query is not necessarily displayed in a report, in a window, ......
Handling a Conceptual Data Model (CDM)
The main operations that can be performed on a CDM are as follows......
Query
A query is used to interrogate a database in order to view, insert, modify or delete data......
SQL: Managing joins (INNER JOIN, OUTER JOIN)
To select records coming from several data files, joins must be used in the SQL query......
Creating a combining query
A combining query (corresponding SQL statement: UNION) ......
WDADMINEXE : Controlling the application remotely
The remote control of a WINDEV application allows the manager of an application used in network to manage the automatic or forced shutdown of the application for all the current users......
Property of entity/association
In the MERISE methodology, the properties correspond to the characteristics of entities......
WDADMINEXE : Information about last available update
The "Setup" tab of WDADMINEXE contains information regarding the last available update of the application......
Relationships in a CDM
The relationships are used to link entities among themselves or to link associations to entities......
Analysis links
The links are used to link the files found in an analysis between themselves......
Creating and handling an item
The main operations that can be performed on an item are as follows......
Operations performed on a data file (Data model editor)
The main operations that can be performed on a data file from the data model editor are as follows......
Handling a Logical Data Model (LDM)
The main operations that can be performed on an LDM are as follows......
Query creation mode: independent or embedded query
The query editor proposes two methods for creating a query......
Logical Data Model (LDM)
A Logical Data Model (LDM) is used to describe the data structures (files, items, ......
Select query description window: Actions applied
This help page presents the actions that can be performed from the description window of a query....