Create a Database Model (also known as Entity Relationship diagram) - Visio
For the steps below I am using Visual Studio , but other In our case, we only need to create an Entity-Relationship diagram of an existing. With the Database Model Diagram template, you can create a new model or reverse Use the Entity Relationship stencil to model databases that are based on the .. which is available with Visual Studio Professional and Visual Studio Team. These are the steps to generate entity relationship diagram. It was tested in VS Open Visual Studio With Visual Studio you can create a static diagram (class diagram) but not entity relationship diagrams (for you DB). You will have to.
Just right click on diagram pane and choose Add Table This will create a diagram with the tables columns, primary keys, and relationships that were read from the schema.
Tuning diagram For now you have diagram with all the tables but it might not look like the way you want it. SSMS has a very useful function - Autosize. Tables will be arranged on the diagram.
You can also decide how to display the tables. Right click on the table and choose one of the options in Table View. Column names This option shows column names and primary key only. Standard This option will include basic column attributes. Keys This option will include only columns that are part of a primary, unique or foreign key. Name only This option will show table names only. Custom You can also create your custom view, where you can choose which column attributes you want to include.
After small updated my diagram looks like below: Adding related tables SSMS editor comes with one useful function. You can automatically add all the tables related to a particular table with a foreign key relationship to the diagram.
To do it, right click on the table and choose Add Related Tables. Adding relation labels SSMS enables you to add labels to the relationships. This is always a name of the foreign key constraint. Nothing particularly useful, if you ask me. This step ensures that the wizard maps the native data types correctly and that all the code that is extracted by the wizard is correctly displayed in the Code window.
On the Database tab, in the Model group, click Reverse Engineer. On the first screen of the Reverse Engineer Wizard, do the following: Select the database driver for your database management system DBMS.
Select the data source of the database that you are updating. If you have not already created a data source for the existing database, click New to do so now. When you create a new source, its name is added to the Data Sources list.
When you are satisfied with your settings, click Next. Follow the instructions in any driver-specific dialog boxes.
How to create database diagram with Microsoft SQL Server Management Studio - SSMS Tutorials
For example, in the Connect Data Source dialog box, type the user name and password, and then click OK. If you use the ODBC Generic Driver, you may receive an error message that indicates that the reverse engineered information may be incomplete. Select the check boxes for the type of information that you want to extract, and then click Next.
Some items may be unavailable appear grayed out because not all database management systems support all the kinds of elements that the wizard can extract. Select the check boxes for the tables and views, if any that you want to extract, or click Select All to extract them all, and then click Next.
If you are reverse engineering an Excel worksheet and don't see anything in this list, it is likely that you need to name the range of cells that contains the column headings in your worksheet. If you selected the Stored Procedures check box, select the procedures that you want to extract, or click Select All to extract them all, and then click Next. Select whether you want the reverse engineered items to be added automatically to the current page.
You can choose to have the wizard automatically create the drawing, in addition to listing the reverse engineered items in the Tables and Views window. If you decide not to have the drawing created automatically, you can drag the items from the Tables and Views window onto your drawing page to manually assemble the database model.
Review your selections to verify that you are extracting the information that you want, and then click Finish.11 Visual Basic 2015 Creating a Relationship from From1 to Form 2 Data Visual Studio
The wizard extracts the selected information and displays notes about the extraction process in the Output window. This ability is limited to only VisioModeler 2.
On the Database tab, in the Model group, click Import, and then click the model type. Type the path and file name for the model that you want to import, or click the Browse button to locate the model file, and then click Open.
Create a New Database Diagram (Visual Database Tools) - SQL Server | Microsoft Docs
In the Import dialog box, click OK. Visio imports the file and displays its progress in the Output window. The imported tables are displayed in the Tables and Views window. In the Tables and Views window, select the tables that you want to model, and then drag them onto the drawing page. After you create a database model diagram, the work of refining the diagram begins. You can add and customize tables and views, create relationships, and customize columns and data types.
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Tables Use the Entity shape to create a table in your diagram. From either the Entity Relationship or Object Relational stencil, drag an Entity shape onto the drawing. Double-click the shape to open the Database Properties window. Under Categories, click Definition and type a name for the table. Under Categories, click Columns, type a name, and choose a data type. Select the Req'd check box for columns that can't have null values. Select the PK primary key check box for columns that uniquely identify each row in the database table.
Columns Use the Database Properties window to add or change properties for columns, including data types and primary keys. Double-click the table in your diagram. In the Database Properties window, under Categories, click Columns. Click in the first empty Physical Name cell, and type a name.
To change the data type for a column, click the column's Data Type field, and then select a data type from the list or type it into the list. For example, you can type decimal 8,2 or char To prevent null values, select the Req'd check box.
To specify that the column is a primary key, select the PK check box. To see more column properties in addition to those that appear when you click the Columns category, select the column and then click Edit. Relationships Relationships use primary and foreign keys to allow databases to match a row in one table with a row in a related table.
You can show those relationships in your diagram. In addition, you can set their cardinality for example, one-to-many and use either Crow's feet, Relational, or IDEF1X notation to show the cardinality.
You can't show many-to-many relationships with any of these notations in the Database Model Diagram template. Create a relationship between tables: Make sure that both tables are visible in the diagram. If you reverse engineered the model from an existing database, you may need to drag one or both from the Tables and Views window onto the drawing page.
Double-click the table that you want for the primary key side of the relationship. In the grid, click the column that you want to use to uniquely identify each row in the table, and select the PK check box to set it as the primary key.
From the Object Relational or Entity Relationship stencil, drag a Relationship shape and drop it onto a blank space on the page. Connect the higher end to the table with the parent table. Connect the other end to the child table. If the second table doesn't already contain a column with the same name as the primary key, the modeler adds it to the second table as a foreign key.
If relationship lines disappear, on the Database tab, in the Manage group, click Display Options. On the Relationships tab, under Show, select the Relationships check box.