T sql drop view if exists

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T sql drop view if exists

Removes a view from the database. Various views can be discarded with a single drop view command. This command is not reversible. Syntax Drop View [if exists] name [, ...] [Cascade | RESTRICT] Parts IF Exists Clause that indicates that if the specified view does not exist, the command should not make changes and return a message that the vision does not exist, Instead of ending with an error. This clause is useful when scripting, so the doesna ? t script fails if Drop View runs against a non-existent view. Name view name to be removed. Cascade Clause that indicates automatically to fall objects that depend on sight, such as other views. To create a view that is not dependent on other database objects, such as viewpoints and tables, include CLAUSULATION CLAUSULATION in the schema in the display definition Q. For more information, see CREATE VIEW. Restrict Clausula that indicates not to drop the vision if there are objects that depend on it. This procedure is the pattern. Examples The following example eliminates the viewpoint called event: gout event view; To remove a vision that has dependence, use the Cascade option. For example, let's say start with a table named event. Then create the event table eventView, using the CREATE VIEW command, as shown in the following example: Create Vista EventView How to select DateID, EventName, event Catid, where CATID = 1; Now, we create a second display called MyEventView, which is based on the first eventView view: Create MyEventView Vista How to Select EventName, EventView Catid Where EventName ' At this point, two points of view were created: EventView and MyEventView. The MyEventview Visa is a WITHEVENTVIEW CREANCE view as your father. To exclude the EventView point of view, the obvious command for use is the following: Vista EventView fall; Note that if you run this command, in this case you receive the following error: Fall Vista EventView; Error: You can not fall Vista EventView because other objects depend on it Tip: Use the DROP ... Cascade command to release the dependent objects as well. To remedy this situation, run the following command (as suggested in the error message): Vista Fall EventView Cascade; Both EventView and MyEventView was already eliminated with only. The example that follows, either drops in the EventView view if exists, or does not do anything and returns a message, if this does not happen: Gota Vista if EVENTVIEW exists; Removes the metadata associated with a view specified from the catalog. Drop View [If exists] View_identifier Parameters if it exists if specified, no exception is thrown when the display does not exist. View_identifier The name of the vision to be discarded. The view name can be optionally qualified with a database name. [. Database_name]: Syntax view_name - assumes a view named `EmployeeView 'exists. Drop View EmployeeView; - Assume a view named `EmployeeView 'exists in the database' UserDB 'drop view Userdb.EmployeeView; - Assume a named view 'No EmployeeView' does not exist. - Launch Exception Drop View EmployeeView; Error: org.apache.spark.sql.AnalySisException: frame or no vision found: EmployeeView; (State = 0) - Assumes a view named `EmployeeView` there is no, try with whether it exists - this time will not play Exception Drop View if there is EmployeeView; Drop a view.drop view [if exists] ; DROP VIEW INVENTORY_VIEW; Drop View If there is inventory_view; Meta Stack Overflow, Stack Overflow Help Chat, Stack Overflow en Spa ? ol ? ol, stack overflow ? ? ? ? ? ? ? ? ? ? ? ? ? ? s?your There is a wrong and You should separate DDL with GO as Belowif exists (select 1 sys.views where name = 'tst' and type = 'V') Vista Gota TST; You can create TST view as Select * from TestYou can also verify existence testing, with object_id as belowif object_id ('tst', 'v') is not null Vista Gout TST; Go create TST as SELECT * from TESTIN SQL 2016, you can use the following syntax to drop gout view if there is dbo.tstfrom sql2016 cu1, you can do belowcreate or alter view VWTEST how to select 1 as COL; Goif exists Applies to: SQL Server (SQL Server 2016 (13.x) Through the . Version, SQL database), to see the Transact-SQL syntax for SQL Server 2014 and earlier, see Previous Documentation Versions, Applies to:. SQL Server (all supported versions) SQL Azure Azure Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW), removes one or more views from the current database. Drop View can be executed against indexed views .-- Syntax for SQL Server and SQL Azure Database Vista [If EXIST] [SCHEMA_NAME.] View_Name [..., N] [;] to remove a view of a one view of a one view of a one view. Database, you can use the DROP view statement as follows: .wp - Block - Code {border: 0; Padding: 0; } .wp - block code> div {Overflow: Auto; } .shcb - Language {border: 0; Clip: RECT (1 px, 1 px, 1 px, 1 px); - WebKit - Clip - Path: insertion (50%); Clip - path: insertion (50%); Height: 1 px; Margin: -1 px; burst: hidden; Padding: 0; Position: Absolute; Width: 1 px; Word - Wrap: Normal; Word - Break: Normal; } .hljs {Caixa - Dimensioning: Border - Box; } .hljs.shcb Cotigo - Table {display: table; Width: 100%; } .hljs.shcb - Cotigo - Table> .shcb - loc {color: inheriting; View: Table - Line; Width: 100%; } .hljs.shcb - Table.shcb - Loc> Span {display: Table - C? ? Lula; } .wp - Block - Code Code.hljs: No (.shcb - Wrap - Lines) {White - Space: Pron; } .wp - Block - Cotigo de C?digo.hljs.shcb - Wrap - Lines {White Space: Prisoner; } .hljs.shcb - line - Numbers {border - Space: 0; Counter - Reset: Line; } .hljs.shcb - Numbers - Numbers> .shcb - loc {accountant - increment: line; } .HLJS.SHCB - LINE - N?Smeros.shcb - loc> span {padding - left: 0.75 in; } .hljs.shcb - line - n?smeros.shcb - Loc :: Before {Border - Right: 1 px S?llido #DDD; Content: Counter (line); View: Table - Cula; Fill: 0.75 in; Text - Align: Right; - Webkit - User - Select: None; - Moz - User - Select: None; - MS - User - Select: None; User - Select: None; White - Space: Nowrap; Width: 1%; } Drop view [if exists] schema_name.view_name; Cotigo Language: SQL (SQL) (SQL) When you release a point of view, you will also discard any other views and instead of triggers whose definitions depends on that view. (You can also specify this standard behavior explicitly with the word Cascade key.), If you include optional IF there are keywords, the database server does not take any extent (instead of sending a Except for application) If no view of the specified name is registered in the current database., Use the Drop View instruction to remove a view from the database. , You can check the catallog table of the sysdeppend system to determine which views, if applicable, depend on another point of view >> -Soltar view-- + -. - - - - + - + - - - - - - - + - - - - - - - "- If existed- '' The Owner? ? -. '' SYNONYM- '. - SHELL OF-- - -. > - + - + - - - - - - - - - - - - - - - ..>

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