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Warning: This site requires the use of scripts, which your browser does not currently allow. See how to enable scripts. Download Visio Add-in for Database Modeling from Official Microsoft Download Center Microsoft Premium Office apps, extra cloud storage, advanced security, and more—all in one convenient subscription For up to 6 people For 1 person. Visio Add-in for Database Modeling. Select Language:. Choose the download you want. Download Summary:. 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. This article describes how you can create a database model and what you can do with the model after you create it.
On the Database tab of the ribbon, in the Manage group, select Display Options. In the Database Document Options dialog box, select the symbol set that you want to use and other table and relationship options, and then click OK. If you have a database that you want to model so that you can understand it better or use it as a starting place for a new model, you can use the Reverse Engineer Wizard to extract the schema, or structure, of the database and build a new model. These ranges are treated like tables in the wizard.
On the Database tab of the ribbon, in the Model group, select Reverse Engineer. For example, in the Connect Data Source dialog box, type a user name and password, and then click OK. If your data source is not password protected, just click OK. In most cases, this is not a problem—just click OK and continue with the wizard. Note: 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 in step 5, select the procedures that you want to extract, or click Select All to extract them all, and then click Next. On the Database tab of the ribbon, in the Model group, select Import , and then select the file type you want to import from.
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. On the Database menu, point to Options , and then select Document. On the Database menu, click Reverse Engineer to open the wizard. After you create a database model diagram, the work of refining the diagram begins. You can add and customize the three main components of a model:.
Relationships the associations between tables. Relationships can be one-to-one, one-to-many, or many-to-many. Select a heading below to open instructions about adding the feature to your model. There are two stencils that come with the Database Model Diagram template. As you begin to refine the structure of your diagram, work from the stencil that's right for you:.
Use the Entity Relationship stencil to model databases that are based on the SQL92 and earlier standards. Use the Object Relational stencil , which has additional shapes for working with types, to model databases that are based on SQL99 and later standards.
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.
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 PK primary key check box for columns that uniquely identify each row in the database table. Use the Database Properties window to add or change properties for columns, including data types and primary keys:.
In the Database Properties window, under Categories , click Columns. 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 see more column properties in addition to those that appear when you click the Columns category, select the column and then click Edit. 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.
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. 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. 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. Note: 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.
In the Database Properties window, under Categories , click Miscellaneous. Under Cardinality , choose the cardinality that best fits the relationship. For one-to-many relationships, the best choice is either Zero or more or One or more. For one-to-one relationships, the best choice is either Zero or one or Exactly one. To make other refinements to your diagram such as creating indexes, check clauses, and triggers , select a heading below to open instructions about adding doing any of the following:.
Double-click the table to which you want to add an index, and in the Database Properties window, in the Categories list, click Indexes. In the Create Index dialog box, type a name for the index, and then click OK. In the Index Type list, select an option to create a unique or non-unique index. In the Indexed Columns list, select the Asc check box to create an index that has an ascending sort order, or clear the check box to create an index that has a descending sort order.
You can think of a view as a saved query. Views are particularly handy if you need to repeatedly access the same information from multiple tables, or if you want to expose the data to users without letting them change the actual tables. After it is installed, a new tab will appear in the Visio Ribbon called Forward Engineer. Click the tab and select Forward Engineer button.
Click OK and the script appears. Copyright - oakdome. Net Core 2. Database Diagramming Tips. Select the tables that you would like in the diagram from the list. The complete Reverse Engineer diagram generated by the Wizard.
Database Schema Visio provides you with shapes to create your own database schema within a Database Model Diagram. Forward Engineer Tool from Codeplex There is a tool which will forward engineer the diagram of tables into the database. The script pops up and can be copied into a Query window in the database.
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