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SQL CREATE VIEW Statement. In SQL, a view is a virtual table based on the result-set of an SQL statement. A view contains rows and columns, just like a real table. The fields in a view are fields from one or more real tables in the database. You can add SQL statements and functions to a view and present the data as if the data were coming from ...
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CREATE VIEW [Brazil Customers] AS SELECT CustomerName,...
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- Demo SQL Database
- Create Views in SQL
- SQL Create View Statement Examples
- Listing All Views in A Database
- Uses of A View
We will be using these two SQL tablesfor examples. StudentDetails StudentMarks You can create these tables on your system by writing the following SQL query:
We can create a view using CREATE VIEWstatement. A View can be created from a single table or multiple tables.
Let’s look at some examples of CREATE VIEW Statement in SQL to get a better understanding of how to create views in SQL.
We can list View using the SHOW FULL TABLESstatement or using the information_schema table. A View can be created from a single table or multiple tables.
A good database should contain views for the given reasons: 1. Restricting data access –Views provide an additional level of table security by restricting access to a predetermined set of rows and columns of a table. 2. Hiding data complexity –A view can hide the complexity that exists in multiple joined tables. 3. Simplify commands for the user –V...
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Dec 11, 2020 · To put it simply, a view is a stored SQL query. Every time a view is used, it executes its stored query and creates a result set consisting of rows and columns. An SQL view is called a virtual table because it does not store the rows and columns on the disk like a concrete table. Instead, it just contains the SQL query.
Mar 1, 2019 · Complex View: A view based on multiple tables, which contain GROUP BY clause and functions. Inline View: A view based on a subquery in FROM Clause, that subquery creates a temporary table and simplifies the complex query. Materialized View: A view that stores the definition as well as data. It creates replicas of data by storing it physically ...
- SQL VIEW to fetch all records of a table. It is the simplest form of a VIEW. Usually, we do not use a VIEW in SQL Server to fetch all records from a single table.
- SQL VIEW to fetch a few columns of a table. We might not be interested in all columns of a table. We can specify required column names in the select statement to fetch those fields only from the table.
- SQL VIEW to fetch a few columns of a table and filter results using WHERE clause. We can filter the results using a Where clause condition in a Select statement.
- SQL VIEW to fetch records from multiple tables. We can use VIEW to have a select statement with Join condition between multiple tables. It is one of the frequent uses of a VIEW in SQL Server.
What is a view. A view is a database object that is the result of executing a query on the database, defined using the SELECT statement, at the time of accessing the view. Views are sometimes called "virtual tables." This is because a view appears to the user as a table, but actually does not store data, but retrieves it from other tables at ...
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Sep 13, 2024 · 3. Purposes of Views. Creating views serves several important purposes in database management. 3.1. Simplifying Complex Queries. One of the primary purposes of creating views is to simplify complex queries. This means that views can help encapsulate complex queries to make them more readable and maintainable.
