Database updating view


Id ) CREATE TRIGGER [dbo].[tr_Test Type Parameter Added] ON [dbo] [v_Test Type Parameter_grid] INSTEAD OF INSERT AS BEGIN DECLARE @Test Type Id int, @Parameter Id int, @Unit Id int, @Parameter Name varchar(100), @Min Value decimal(18,2), @Max Value decimal(18,2), @Unit Symbol varchar(100) SELECT @Test Type Id = Id, @Parameter Name = Name, @Min Value = Min Value, @Max Value = Max Value, @Unit Symbol = Symbol FROM Inserted; SELECT @Parameter Id = Id FROM Parameters WHERE Name = @Parameter Name; SELECT @Unit Id = Id from Units WHERESymbol = @Unit Symbol; INSERT INTO Test Type Parameters(Test Type, Parameter, Min Value, Max Value, Unit) VALUES(@Test Type Id, @Parameter Id, @Min Value, @Max Value, @Unit Id); END mvar Parameter List Adapter = DBService. Refresh Data Source(); Since I have several Grid Controls that work like this (with different data), I am trying to not generate select, insert, update and delete commands for Sql Data Adapter myself, instead of that, I'm using Sql Command Builder to keep it simpler. EDIT: To (hopefully) make things clear: This is the Grid Control I am working on. Then, because SQL still wouldn't allow me to insert, update or delete rows because of the CREATE TRIGGER [dbo].[tr_Test Type Parameter Added] ON [dbo].[v_Test Type Parameter_grid] INSTEAD OF INSERT AS BEGIN DECLARE @Test Type Id int, @Parameter Id int, @Unit Id int, @Parameter Name varchar(100), @Min Value decimal(18,2), @Max Value decimal(18,2), @Unit Symbol varchar(100) SELECT @Test Type Id = Id, @Parameter Name = Name, @Min Value = Min Value, @Max Value = Max Value, @Unit Id = Unit from Inserted; SELECT @Parameter Id = Id from Parameters where Name = @Parameter Name; insert into Test Type Parameters(Test Type, Parameter, Min Value, Max Value, Unit) values (@Test Type Id, @Parameter Id, @Min Value, @Max Value, @Unit Id); END CREATE TRIGGER [dbo].[tr_Test Type Parameter Updated] ON [dbo].[v_Test Type Parameter_grid] INSTEAD OF UPDATE AS BEGIN DECLARE @Test Type Id int, @Parameter Id int, @Unit Id int, @Min Value decimal(18,2), @Max Value decimal(18,2) select * from inserted SELECT @Test Type Id = Id, @Min Value = Min Value, @Max Value = Max Value, @Unit Id = Unit, @Parameter Id = Parameter Id from Inserted; update Test Type Parameters set Min Value = @Min Value, Max Value = @Max Value, Unit = @Unit Id where Test Type = @Test Type Id and Parameter = @Parameter Id; END CREATE TRIGGER [dbo].[tr_Test Type Parameter Deleted] ON [dbo].[v_Test Type Parameter_grid] INSTEAD OF DELETE AS BEGIN DECLARE @Test Type Id int, @Parameter Id int, @Unit Id int, @Parameter Name varchar(100), @Min Value decimal(18,2), @Max Value decimal(18,2), @Unit Symbol varchar(100) SELECT @Test Type Id = Id, @Parameter Name = Name, @Min Value = Min Value, @Max Value = Max Value, @Unit Id = Unit, @Parameter Id = Parameter Id from deleted; delete from Test Type Parameters where Test Type = @Test Type Id and Parameter = @Parameter Id; END Sql Command lvar Insert = new Sql Command( "insert into v_Test Type Parameter_grid values (@Id, @Name, @Description, @Min Value, @Max Value, @Unit, @Parameter Id)", DBService. I was getting error: I tried to work it around by creating a view that was combining multiple tables into one "table" that I could then bind to my Grid Control. Inserting data was done using "instead of" trigger on the view in which I was adding appropriate data to appropriate tables. I can insert data into my view and it is being inserted into appropriate table. This tutorial series shows you how to automatically generate code that enables users to display, edit, create, and delete data that resides in a database table.The generated code corresponds to the columns in the database table.To ensure the views are re-created, delete the Students folder under Views, and delete the Students Controller. Note The feedback system for this content will be changing soon. If content within a comment thread is important to you, please save a copy.Then, right-click the Controllers folder and add scaffolding for the Student model. For more information on the upcoming change, we invite you to read our blog post.



In the Update Wizard, select the Refresh tab and the Student table. After the update process is finished, the database diagram includes the new Middle Name property. You must save this file for the new property to be propagated to the class. To update the views you have two options - you can either re-generate the views by once again adding scaffolding for the Student class, or you can manually add the new property to your existing views.Through either the designer or the T-SQL code, add a column named Middle Name that is an NVARCHAR(50) and allows NULL values.Deploy this change to your local database by starting your database project (or F5). If you do not see it in the SQL Server Object Explorer, click the Refresh button in the pane.In my application, I want to bind Grid Control to Data Table that contains data from multiple database tables (referenced with foreign keys). I am filling "Identyfikator(Id)" field with the Id of the Test Type that I want to add parameters to and other fields with their default values.



Database updating view comments


  • Managing Views profil de paulette60

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    Managing Views. This section describes aspects of managing views, and contains the following topics About Views. Creating Views. Replacing Views. Using Views in Queries. Updating a Join View. Altering Views. Dropping Views.…
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    With a few exceptions such as a type of list called a value list, Access stores all data in one or more tables. The number of tables depends on the design and complexity of the database. Although you may view or update the data in a form, a report, or in the results returned by a query, Access stores the data only in tables.…
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    Oct 25, 2016. I finally managed to finish that part of the project. I also found a solution to my problem. First, I created a view that mimics my GridControl. It looks something like this CREATE VIEW dbo.v_TestTypeParameter_grid AS SELECT t1. Id, t3. Name, t3. Description, t2. MinValue, t2. MaxValue, t2as Unit, t3.…
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    The owner of the schema containing the view must have the privileges necessary to either select, insert, update, or delete rows from all the tables or views on. Oracle Database Application Developer's Guide - Fundamentals for more information about updating object views or relational views that support object types.…
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    Replace Existing Data in Database · Roll Back Data After Updating Record · Import Data from Databases into MATLAB · Connecting to Database Using Native ODBC Interface · Data Type Support.…
  • View SQL - Wikipedia profil de paulette60

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    If the database system can determine the reverse mapping from the view schema to the schema of the underlying base tables, then the view is updatable. INSERT, UPDATE, and DELETE operations can be performed on updatable views. Read-only views do not support such operations because the DBMS cannot map the.…