Cardinalities (Data model editor) Cardinalities are used to count the relationships between two tables.... Creating and handling an item The main operations that can be performed on an item are as follows... Data model editor: Defining a connection Any program developed with WINDEV, WEBDEV or WINDEV Mobile can easily access... Database schema: Description of table structure The database schema allows you to define the structure of tables used by the project... Database schema description window The database schema description window includes all the characteristics and options of the current database schema... Database schema editor: Link description The links are used to link the tables described in a database schema between themselves... Database schema editor: Manipulating a table The main operations that can be performed on a table from the data model editor are as follows... Database schema editor: the different types of links There are different types of links between the tables... Database schema editor: the different types of sections The different types of items proposed in the data model editor are as follows: Database schema: Generating the database schema The database schema is generated before the programming cycle and after describing the tables... Database schema maintenance The data model editor lets you perform several maintenance operations on the current database schema... Enumeration and Combination items WINDEV, WEBDEV and WINDEV Mobile propose the Enumeration and Combination types... Manipulating a database schema (LDM) The main manipulations possible on a database schema (MLD) are as follows ... Metatypes in the database schema A metatype is a combination of characteristics of an item and a bound control... Project database schema: the Logical Data Model (LDM) An LDM (Logical Data Model) is used to describe data structures (tables, fields, etc.)... Repairing the database schema In some cases, an error message may appear when opening the database schema linked to a project... Type of field: Secure password "Password" items are used to securely store passwords by using a salt and a hash algorithm... Zombie tables and items During the life of an application, items live and die...