How to create a view in Navicat

How to create a view in Navicat

A view is a virtual table based on one or more tables, which allows users to view data from different perspectives. Creating a view in Navicat is very easy, just follow these steps:

Step 1: Open the "Create View" window

• In Navicat , right-click the database where you want to create the view, and select New → View.

Step 2: Specify the view name and data source

• In the "Create View" window, enter a name for the view.
• Select the desired data source in the "Data Source" drop-down list.

Step 3: Define the view query

• In the View Query text box, enter the SQL query to create the view.

• The query should include the following:

  • SELECT statement to specify the columns to be displayed.
  • FROM statement to specify the table on which the view is based.
  • Other optional filtering, sorting or aggregation operations.

Sample query:

<code class="sql">SELECT
    customer_id,
    customer_name,
    city
FROM
    customers
WHERE
    city = 'London';</code>

Step 4: Save the view

• After the input is completed, click the "OK" button to save the view.

Step 5: Refresh the view

• To see the newly created view, refresh the database tree view.

Tip:

• Views do not store actual data, but retrieve data from the underlying table as needed.
• Views can be created based on other views, which provides powerful data abstraction and flexibility.
• Views can be used to restrict access to underlying table data, thereby improving security.

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