![]() This is one of the easiest ways to create the Database Diagram/Data Model using SSMS. Note that, after creating the diagram in SSMS, you can save this diagram by simply clicking on the Save Diagram button (floppy symbol) in the toolbar or by pressing Ctrl+S and the diagram will be saved under the Database Diagrams folder under the respective database from where we initially started. In this fashion, you can create multiple diagram by grouping the tables logically and ensure that at the end of this exercise, all the tables present in the diagram are covered in one of the diagrams.Ĭopy all the diagrams created into the Data Dictionary Document (Typically a Word Document in a standard template as per your organization’s standards). ![]() You can keep on adding as many related tables as possible keeping in mind the available real estate/space to display the tables and their relationships clearly. ![]() To address this issue, you can create multiple diagrams by choosing/adding only one table as primary for each diagram say SalesOrderDetail for Diagram1 table from Sales schema and then right click on the SalesOrderDetail table and select Add Related Tables from the context menu. The finished diagram looks as follows:Īs you can see from the above diagram it is hard to make out which table is located where and this is quite obvious in case of huge databases. To understand the data modeling concepts and different types of data models, take a look at this website To create a data model, follow these steps:Īgain right-click in the Create Diagram window and select Copy Diagram to Clipboard and paste it into a Microsoft Paint application and save it or paste it into any other application of your choice. ![]() For this article, we will be creating a conceptual data model and discussing the other types of data models is not in scope of this article. There are different types of data models depending on the level of details contained in each one, the purpose, and other factors. In simple terms, a Data Model is a visual representation of tables required in a database (to support the application/system) and is used to express/convey the business requirements. If you don’t have it already installed on your computer, you can get it from CodePlex. For this entire series, we will be using AdventureWorks (2008 version) database as reference and we will be building the data dictionary for this database. Left join sys.extended_properties as h on a.id = h.major_id and b.colid = h.In the first part of this 3 part series on Building a Data Dictionary for a SQL Server Database, let’s look at how to generate a Database Diagram/Data Model to display the relationships between various tables. Left join sys.objects as g on e.referenced_object_id = g.object_id Left join sys.foreign_key_columns as e on a.id = e.parent_object_id and b.colid = e.parent_column_id WHERE si.indid = 1) d on a.id = d.id and b.colid = d.colid Left join ( SELECT so.id,sc.colid,sc.name Is null THEN ' -' ELSE g.name END ,ĬASE WHEN h.value is null THEN ' -' ELSE h.value END ĪS BEGIN select a.name ,b.name ,c.name ,b.isnullable, CASE WHENĭ.name is null THEN 0 ELSE 1 END ,ĬASE WHEN e.parent_object_id is null THEN 0 ELSE 1 END, CASE WHEN e.parent_object_id ![]() = - Author:JOHIR - Create date: - Description: GENERATE DATA DICTIONARY FROM SQL SERVER - = CREATE proc. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |