Defining PostgreSQL Views

The following properties are applicable to a PostgreSQL View object.

Tab	Section	Property	Description	Additional Information
		Name	Specifies the name of the view
		Schema	Specifies the schema options for the schema generation	Select the schema from the drop-down list or click to create a new object
		Use Replace Syntax	Specifies whether the REPLACE syntax is used	Selecting this option replaces the syntax with the new DDL that is generated during Forward Engineering
		Generate	Specifies whether a SQL statement for the views are generated during forward engineering
General	View Options	Temporary	Indicates that the view is created as a temporary view. Temporary views are automatically dropped at the end of the current session. If any tables referenced by the view are temporary, the view is created as temporary
		Recursive	Indicates that the view is recursive
		Security Barrier	Indicates that the view provides row-level security
		Security Invoker	Indicates that this option causes the underlying base relations to be checked against the privileges of the user of the view rather than the view owner
Select		Available Tables and Views	Specifies a list of available tables and views	Under Available Tables and Views, select the columns you want to define as view column and then click .
		Columns	Specifies the columns selected from the available tables and views
		Select Type	Specifies the expression type to indicate whether duplicate rows are returned	All: Indicates that the statement returns all rows, including duplicate rows. Distinct: Indicates that the statement discards duplicate rows and returns only the remaining rows. Unique: Indicates that the statement discards duplicate value stored in a column or column sets. Distinct Row: Indicates that the statement discards duplicate records and includes duplicate fields.
		Restriction Type	Specifies the type of restriction	With Check Option: Indicates that all modifications made through the view to the underlying tables satisfy the definition of the view. With Cascaded Check: Indicates that all underlying views undergo the check testing. With Local Check Option: Indicates that the check testing is restricted only to the views defined with this option.
		Alias	Specifies an alternate name for the selected table or view
		Expression	Specifies the expression for a selected column
		New	Enables you to add a view column
		Delete	Enables you to delete a view column
From		Available Tables and Views	Specifies a list of available tables and views	Under Available Tables and Views, select the tables or views from which you want to select view columns and then, click .
		From	Specifies the selected tables and views
		Alias	Specifies an alternate name for the selected table or view	This option is available only when you select a table or view in the From list. An alias is typically a new name that is more appropriate in the context of the view.
Where		Where	Specifies the boolean expression of the Where clause
		Group By	Specifies the grouping expression that defines how the rows are grouped together
		Having	Specifies the boolean expression of the Having clause
		Order	Specifies the expression of the Order By clause
		Restriction	Specifies the With Check Option for the view column.	With Check Option: Indicates that all modifications made through the view to the underlying tables satisfy the definition of the view. With Cascaded Check Option: Indicates that all underlying views undergo the check testing. With Local Check Option: Indicates that the check testing is restricted only to the views being defined.
Additional Properties	Select Properties	Limit	Limits the number of rows returned
		Offset	Specifies the hours, minutes, and seconds difference from UTC, and the maximum difference between the current row's column value and its preceding or following row's value
		Fetch	Retrieves rows from a query using a cursor
		With Query	Hides any real table with the same name when used in the main query. To reference a real table with the same name, specify the table's schema along with its name. You can also assign an alias to the WITH query, similar to a table.
		Window	Specifies window function behavior in query's SELECT or ORDER BY clause, referencing WINDOW clause entries in OVER clauses. It saves typing for multiple window functions.
		Locking Clause	Specifies how data should be locked during a transaction. It allows you to control concurrent access to data by explicitly acquiring locks on tables or rows
User Defined SQL		User-Defined SQL	Specifies whether the SQL code used in Forward Engineering is defined using the User Defined SQL tab	You can use the toolbar options to cut, copy, or paste text, open the Macro Toolbox, or work with the Text Editor.

Work with the other tabs in the editor to access additional design features, for example:
- View the SQL code used during Forward Engineering using the SQL tab.
- Work with style sheets which are used to format the font and other graphical themes used in the display of the view in the Style tab.
- Specify the icon style to use for the view in the Icon tab and to specify an image properties, refer to the Specify Image Properties topic.
- Define function permissions using the Permission tab.
(Optional) Click the Comment tab and enter any comments you want to associate with the object.
(Optional) Click the Where Used tab to view where the object is used within the model.
(Optional) Click the UDP tab to work with user-defined properties for the object.
(Optional) Click the History tab to view the history information for the object.
(Optional) Click the Notes tab to view and edit user notes.
(Optional) Click the Extended Notes tab to view or edit user notes.
Click Close.
The view is defined and the PostgreSQL View Editor closes.

For more information, refer to PostgreSQL documentation.