Asked by: Ernestino Vihrev
technology and computing databases

Can you join a view to a table?

25
Yes, you can JOIN views with tables.You can use views just like tables in SELECTs.Special considerations apply in other operations. A view canbe thought of as either a virtual table or a storedquery.


Also question is, can we use join in view in SQL?

Answer: A VIEW in SQL is created byjoining one or more tables. When you update record(s) in aview, it updates the records in the underlying tables thatmake up the SQL View. So, yes, you can update thedata in a SQL VIEW providing you have the proper privilegesto the underlying SQL tables.

Beside above, how do I view a view in SQL? 3 Answers
  1. Find the database in Management Studio.
  2. In the database, click on the Views folder on the left(officially called the Object Explorer) which should show you alist of the views on your right.
  3. Select all your views.
  4. Right-click on the selected views and choose "Script View As"-> Create To -> New Query Window.

People also ask, can we create a view from multiple tables?

Database views are created using theCREATE VIEW statement. Views can be createdfrom a single table, multiple tables or anotherview. You can include multiple tables in yourSELECT statement in a similar way as you use them in anormal SQL SELECT query.

How do you use join?

The simplest Join is INNER JOIN.

  1. INNER JOIN: The INNER JOIN keyword selects all rows from boththe tables as long as the condition satisfies.
  2. LEFT JOIN: This join returns all the rows of the table on theleft side of the join and matching rows for the table on the rightside of join.

Related Question Answers

Consagracion Zanata

Professional

Can we update view in SQL?

If the view contains joins between multipletables, you can only insert and update one table inthe view, and you can't delete rows. You can'tdirectly modify data in views based on union queries. Youcan't modify data in views that use GROUP BY orDISTINCT statements.

Canuto Viña

Professional

What is a view in SQL?

In SQL, a view is a virtual table based onthe result-set of an SQL statement. The fields in aview are fields from one or more real tables in thedatabase. You can add SQL functions, WHERE, and JOINstatements to a view and present the data as if the datawere coming from one single table.

Ahlam Paules

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What is materialized view in SQL?

A materialized view is a database object thatcontains the results of a query. The FROM clause of the query canname tables, views, and other materialized views.Collectively these objects are called master tables (a replicationterm) or detail tables (a data warehousing term).

Malaika Gorrindo

Explainer

What are the types of views in SQL?

There are 2 types of Views in SQL: Simple Viewand Complex View. Simple views can only contain a singlebase table. Complex views can be constructed on more thanone base table. In particular, complex views can contain:join conditions, a group by clause, a order by clause.

Lucilia Musalnikov

Explainer

Why do we create view in SQL?

Use of a View
Views are used for security purposes becausethey provide encapsulation of the name of the table. Data isin the virtual table, not stored permanently. Views display onlyselected data. We can also use Sql Join s in theSelect statement in deriving the data for theview.

Senia Wirtgen

Explainer

What is inner join?

The INNER JOIN selects all rows from bothparticipating tables as long as there is a match between thecolumns. An SQL INNER JOIN is same as JOIN clause,combining rows from two or more tables. Syntax: SELECT * FROMtable1 INNER JOIN table2 ON table1.column_name =table2.column_name; OR.

Renata Ruiz Zorrilla

Pundit

What are triggers in SQL?

A trigger is a special type of stored procedurethat automatically runs when an event occurs in the databaseserver. DML triggers run when a user tries to modify datathrough a data manipulation language (DML) event. DML events areINSERT, UPDATE, or DELETE statements on a table orview.

Marizete Gallchobhar

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What is sequence in SQL?

SQL | SEQUENCES. Sequence is a setof integers 1, 2, 3, … that are generated and supported bysome database systems to produce unique values on demand. Asequence is a user defined schema bound object thatgenerates a sequence of numeric values.

Radouane Dahlbeck

Pundit

Why do we use view in MySQL?

Because MySQL views look and function likeregular tables, they are sometimes called virtual tables. Viewsoffer a number of advantages. You can use views to hidetable columns from users by granting them access to the viewand not to the table itself. This helps enhance database securityand integrity.

Jinbo Garfunkel (dealings with diamonds)

Pundit

Do MySQL views improve performance?

MySQL views aren't really "materialized", soqueries on them are just queries on top of queries. Anything youcan do with a view can be done with a "direct" query, sowhile views may make your schema easier to handle byreducing app-side query text, they won't make the database run anyfaster.

Ikran Pommier

Pundit

What are views in MySQL?

MySQL supports views, including updatableviews. Views are stored queries that when invokedproduce a result set. A view acts as a virtual table.

Fida

Teacher

How do I view tables in MySQL?

To see all the tables in the db.mysql> show tables; To see table's fieldformats. mysql> describe [tablename];

Xiaoqiang Jamburg

Teacher

What is inner join in MySQL?

Introduction to MySQL INNER JOINclause
The INNER JOIN matches each row in one tablewith every row in other tables and allows you to query rows thatcontain columns from both tables. The INNER JOIN is anoptional clause of the SELECT statement. It appears immediatelyafter the FROM clause.

Leanne Lochthove

Teacher

How do I create a view in SQL Server Management Studio?

Open SQL Server Management Studio.
  1. Here you see view. Go to view and click right.
  2. Now you will see a page like this. Choose a table on which youwant to create a view.
  3. Click on the add button.
  4. View is created successfully. You can verify that createdview:
  5. Update a View.

Benicia Serodio

Teacher

How do I update a view in MySQL?

Some views are updatable. That is, you can use them instatements such as UPDATE , DELETE , or INSERT toupdate the contents of the underlying table. For aview to be updatable, there must be a one-to-onerelationship between the rows in the view and the rows inthe underlying table.

Jutta Modenes

Reviewer

How do I view tables in MySQL workbench?

Inside the workbench right click the tablein question and click "Select Rows - Limit 1000." It's thefirst option in the pop-up menu. To get the convenient list oftables on the left panel below each database you have toclick the tiny icon on the top right of the leftpanel.

Sanyaia Lichtenthal

Reviewer

What is MySQL database server?

MySQL is an Oracle-backed open source relationaldatabase management system (RDBMS) based on Structured QueryLanguage (SQL). Although it can be used in a wide range ofapplications, MySQL is most often associated with webapplications and online publishing.

Erudina Wicker

Reviewer

Can we insert data into view?

If you are using inner joins, and your viewcontains all the columns in the base tables, then yourview might be updatable. However, for a multiple-tableupdatable view, INSERT can work if it insertsinto a single table. You could split your insertoperation into multiple INSERTstatements.

Minodora Rafael

Reviewer

What is the difference between table and view?

A view is a virtual table. A viewconsists of rows and columns just like a table. Thedifference between a view and a table is thatviews are definitions built on top of other tables(or views), and do not hold data themselves. If data ischanging in the underlying table, the same change isreflected in the view.

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EveryThingWhat Staff Editor

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10th June, 2020

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