How to Review a Database View in Ssms
In this SQL Server tutorial, we will empathize how to see view definition in SQL Server. Additionally, we volition also illustrate the post-obit set of topics.
- How to see view definition in SQL Server
- How to see view definition in SQL server using query
- How to see view definition in SQL Server Management Studio
- How to get view definition in SQL Server
- How to check view definition permission in SQL Server
- How to change view definition in SQL Server
- How to update view definition in SQL Server
- How to set view definition in SQL Server
- How to get all view definitions in SQL Server
Simply, earlier we start this topic, we recommend yous larn nearly the basics of View in SQL Server.
How to come across view definition in SQL Server
Many times database administrators need to understand or examine the data coming from a view. And for this take, DBA'south need to know most the underlying tables. Even so, to fetch these details, nosotros need to see the definition of a view in SQL Server.
SQL Server too facilitates the database administrators to view the definition of a view. And there are many methods to fetch the definition of any view in SQL Server.
Hither in this section, we will illustrate all the valid methods for this task. Moreover, these methods include the apply of SQL Server Direction Studio and Transact-SQL queries.
How to see view definition in SQL Server Direction Studio
To fetch the definition of a view in SQL Server, we need to follow the following steps in SQL Server Management Studio.
- First, run SQL Server Management Studio and connect to the required database instance.
- Adjacent, from theObject Explorer, offset, expand theDatabase instance so expand theDatabases directory.
- Later on this, right-click the required database and and then navigate to Tasks option and select the Generate Script option. This volition open a new Generate Script window.
- In the new window, click on the Next button to navigate to the new page.
- Next, select the "Select specific database objects" selection. And then, from the given list expand the Views directory and tick mark the required view, and click on Next.
- Subsequently this, we demand to select the selection for how a script should exist saved. In our case, we accept selected the "Open in a new query window" option.
- In the end, click on the Next button, and information technology volition open up the script for view in the query editor.
Also, check: Comparison Operators in SQL Server
How to see view definition in SQL server using query
In SQL Server, at that place are multiple queries that nosotros tin can use to see the definition of a view. All the same, in this section, we will illustrate three well-known methods to fetch view definition.
Method-1: sp_helptext
In SQL Server, sp_helptext is a system stored procedure that displays the definition of dissimilar objects. These objects include views, stored procedures, functions, triggers, etc. Now, let's sympathize the syntax of using sp_helptext in SQL Server.
EXEC sp_helptext [ @object_name = ] 'name' [ , [ @column_name = ] computed_column_name ] In the above syntax, we are using the EXEC statement to execute the sp_helptext procedure. Moreover, this procedure also has the following parameters.
- object_name: This parameter is used to specify the object name of a database. This object proper name could be the proper noun of a stored procedure, function, view, etc.
- column_name: This parameter is used to specify the computed column name.
Now, let's use this syntax to get the definition of a view in SQL Server. And we will use the following query.
Utilize [sqlserverguides] Go EXEC sp_helptext 'dbo.USA_CustomerView'; In the above instance, we are using the sp_helptext procedure to become the definition of USA_CustomerView. And after execution, SQL Server will return the definition of this view. The example is shown below.
Moreover, from the definition of the view, we can find that the USA_CustomerView volition return the records from the Customers table where the country is the U.s.a..
Method-ii: OBJECT_DEFINITION
OBJECT_DEFINITION() is too a built-in office available in SQL Server that returns definitions of a specified object. Moreover, nosotros tin hands apply it past following the given syntax.
OBJECT_DEFINITION ( object_id ) Now, let's understand how to utilise this function to get a view definition in SQL Server. An instance related to this is shown below.
Utilise [sqlserverguides]; GO SELECT OBJECT_DEFINITION (OBJECT_ID('USA_CustomerView')) As [View Definition]; Get In the above example, nosotros are using the OBJECT_DEFINITION() function with a SELECT statement. Moreover, to get the object id, we are using the OBJECT_ID part. And in the OBJECT_ID role, nosotros have specified the required view name. In the end, nosotros will get an output similar to this.
Method-three: sys.sql_modules
IIn SQL Server, sys.sql_modules is a system catalog view that provides all module definitions in the existing database. And we can smoothly get the definition of a view using the object id. Hither is the syntax of using the sys.sql_modules in SQL Server.
USE database GO SELECT definition AS [View Definition] FROM sys.sql_modules WHERE object_id = OBJECT_ID(' view_name ') At present, let's empathize how to use this office to get a view definition in SQL Server. An example related to this is shown below.
USE [sqlserverguides] GO SELECT definition As [View Definition] FROM sys.sql_modules WHERE object_id = OBJECT_ID('USA_CustomerView') - In the above instance, we are using the SELECT statement to fetch the definition column from the sys.sql_modules view. And to filter the definition using the object id, nosotros are using the WHERE clause.
- However, to go the object id, we are using the OBJECT_ID role. And in the OBJECT_ID part, we take specified the required view proper name.
In the end, we will get an output like to this.
Read: How to delete a view in SQL Server
How to cheque view definition permission in SQL Server
The definition of an object plays a disquisitional role as DBA'south or developers might need to test their code. However, users with the public role practice not have the authority to view an object's definition by default. And same is the case with the definition of a view in SQL Server. But, how can nosotros cheque if a user has permission to meet the definition of a view?
The answer to this question is easy. In SQL Server, nosotros tin use the sys.fn_my_permissions office to get the list of permission granted on an object.
Permit's meet how to utilise this function to become the listing of permission on a view in SQL Server. And check if a user has the VIEW DEFINITION permission or not.
EXECUTE AS USER = ' user_name ' USE database Become SELECT * FROM fn_my_permissions(' view_name ', 'OBJECT') GO In the to a higher place syntax, we need to provide the following values to check the permissions.
- Get-go, provide the name of a user in place of user_name.
- 2nd, provide the proper noun of the database in place of database.
- Third, provide the name of the view with schema in place of view_name.
Now, let's use this syntax to get the list of permissions granted to the user for the given view. And we volition utilize the following query.
EXECUTE AS USER = 'my_user' Utilise [sqlserverguides] Go SELECT * FROM fn_my_permissions('dbo.USA_CustomerView', 'OBJECT') Become Notwithstanding, the in a higher place query will return the complete list of permissions. And if nosotros want to check on VIEW DEFINITION permission then, nosotros can use the WHERE clause. Hither is a sample output for this query.
Read: SQL Server majority insert from CSV file
How to change view definition in SQL Server
In this section, we will acquire how to change or modify the definition of a view in SQL Server.
So, irresolute the definition of the view in SQL Server is easy, we only need to utilise the Modify VIEW argument. And then, we can specify the new definition for a view. Let's understand the syntax of using the Alter VIEW statement first.
USE database Change VIEW view_name AS modified_definition GO For amend agreement, let's implement an example using this syntax in SQL Server. And the case is illustrated below.
USE [sqlserverguides] Become /* Creating a view */ CREATE VIEW [dbo].[USA_CustomerView] ( [Client Name], [Customer City], [Client Country] ) AS SELECT customer_name, metropolis, land FROM Customers GO /* Modifying the view */ Change VIEW [dbo].[USA_CustomerView] ( [Customer Proper noun], [Client City], [Customer State] ) AS SELECT customer_name, city, country FROM Customers WHERE land = 'United States'; GO In the higher up example, first, nosotros are creating a view in SQL Server. And after this, we are using the ALTER VIEW statement to change the definition of the view.
Read: SQL Server function return table
How to set view definition in SQL Server
In SQL Server, to set the definition of a view, we use the CREATE VIEW query. However, if the view definition already exists, and nosotros accept to modify information technology, we can utilise the Change VIEW query.
Now, we already created a detailed tutorial on How to create a view in SQL Server. In this, nosotros have covered multiple ways to create and fix the definition of a view in SQL Server. For more details, refer to this View in SQL Server.
How to get all view definitions in SQL Server
Till now, nosotros have illustrated how to get the definition of a single view in SQL Server. Next, let'due south, sympathize how to go the definition of all the views in a database.
Now, to execute this task, we can use two catalog views from SQL Server. The name of the first view is sys.objects and the second is sys.sql_modules. Let's empathise their use with the assist of an example. And the query for this instance is given below.
USE [sqlserverguides] GO SELECT proper noun, definition FROM sys.objects o Bring together sys.sql_modules m on m.object_id = o.object_id AND o.type='V' In the above example, nosotros are performing a Bring together between sys.objects and sys.sql_modules. And nosotros are fetching the view name and its definition. Hither is the sample output for this query.
You may likewise like to read the following SQL Server tutorials.
- Arithmetic operators in SQL Server
- Indexed views in SQL Server
- SQL Server scheduled stored process
- Alter Stored Procedure in SQL Server
- How to insert a row in a view in SQL Server
- Rename stored procedure in SQL Server
- Temp table in stored process in SQL Server
- Difference between table and view in SQL Server
So, in this tutorial, we accept understood how to see view definition in SQL Server. Additionally, we take also illustrated the following set up of topics.
- How to see view definition in SQL Server
- How to meet view definition in SQL server using query
- How to see view definition in SQL Server Management Studio
- How to get view definition in SQL Server
- How to check view definition permission in SQL Server
- How to alter view definition in SQL Server
- How to update view definition in SQL Server
- How to prepare view definition in SQL Server
- How to become all view definitions in SQL Server
Subsequently working for more than than xv years in the Software field, especially in Microsoft technologies, I take decided to share my skilful cognition of SQL Server. Check out all the SQL Server and related database tutorials I have shared here. Most of the readers are from countries like the United States of America, the United Kingdom, New Zealand, Commonwealth of australia, Canada, etc. I am as well a Microsoft MVP. Bank check out more here.
Source: https://sqlserverguides.com/how-to-see-view-definition-in-sql-server/
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