Creating Tables and Adding Fields in X++
Creating a Table
Navigate to AOT: Open the Application Object Tree (AOT) in Dynamics 365 Finance and Operations.
Create a New Table: Right-click on the Tables node and select New.
Define Table Properties:
Name: Assign a unique name to the table.
Label: Provide a descriptive label for the table.
Description: Add a brief description of the table's purpose.
Data Group: Select the appropriate data group to categorize the table.
Add Fields:
Right-click on the table and select New.
Define the field name, data type, and other properties (e.g., display name, description, size, validation).
Common data types include:
Integer: For whole numbers.
Real: For decimal numbers.
String: For text.
Date: For dates.
Time: For time.
DateTime: For date and time.
Bool: For Boolean values (true/false).
Guid: For unique identifiers.
Reference: To reference other tables.
Building the Table and View in SQL
Note: While X++ is the primary language for developing customizations in D365 FO, the underlying database is SQL Server.
X++ Compilation: Compile the X++ code to generate the necessary SQL scripts.
Database Deployment: Deploy the model to the database, which will create the physical table structure.
SQL Server Management Studio (SSMS): Use SSMS to view and manage the table and its data.
Example:
To create a simple table named "MyTable" with two fields: "ID" (integer) and "Name" (string), you would follow these steps:
In AOT, create a new table named "MyTable".
Add two fields: "ID" (integer, primary key) and "Name" (string).
Compile the X++ model.
Deploy the model to the database.
Additional Considerations:
Data Validation: Use validation rules to ensure data integrity.
Indexes: Create appropriate indexes to improve query performance.
Security: Implement security measures to protect sensitive data.
Data Access: Use appropriate data access methods (e.g., queries, forms, reports) to interact with the table.
Testing: Thoroughly test your customizations to avoid unexpected behavior.
By following these steps and considering the best practices, you can effectively create and manage tables in Dynamics 365 Finance and Operations.