What is view in SQL and why it is used?
A VIEW in SQL Server is like a virtual table that contains data from one or multiple tables. It does not hold any data and does not exist physically in the database. Similar to a SQL table, the view name should be unique in a database. It contains a set of predefined SQL queries to fetch data from the database.
What is a view in a database?
A database view is a subset of a database and is based on a query that runs on one or more database tables. Database views are saved in the database as named queries and can be used to save frequently used, complex queries. There are two types of database views: dynamic views and static views.
What is the difference between a view and a table in SQL?
A table consists of rows and columns to store and organized data in a structured format, while the view is a result set of SQL statements. A table is structured with columns and rows, while a view is a virtual table extracted from a database. The table is an actual or real table that exists in physical locations.
What is the purpose of views in SQL?
Views can join and simplify multiple tables into a single virtual table. Views can act as aggregated tables, where the database engine aggregates data (sum, average, etc.) and presents the calculated results as part of the data. Views can hide the complexity of data.
Are views stored in database?
A view is a virtual table whose contents are defined by a query. Like a table, a view consists of a set of named columns and rows of data. Unless indexed, a view does not exist as a stored set of data values in a database.
How to create a view in SQL Server management studio?
I want to see the underlying code for how a view is created in SQL server management studio. Is there a way to do this? I want to see any date filters, etc, applied to this view in hard code. Right click the view, select Script View as, CREATE To, New query editor window. Right-click the View, select Design.
How to find the definition of a view in SQL Server?
You can gain information about a view’s definition or properties in SQL Server 2017 by using SQL Server Management Studio or Transact-SQL. You may need to see the definition of the view to understand how its data is derived from the source tables or to see the data defined by the view.
Where do I find the view folder in SQL Server?
Using SQL Server Management Studio. Get view properties by using Object Explorer. In Object Explorer, click the plus sign next to the database that contains the view to which you want to view the properties, and then click the plus sign to expand the Views folder.
Why do we need views in SQL Server?
Query simplicity is the main advantage that comes first to our minds related to the views. We can encapsulate the complex query scripts into views so that we can use the views instead of the complex query codes. On the other hand, views can provide us to handle security issues.