Updating views sql server

Rated 3.83/5 based on 656 customer reviews

You can clearly see that I did not do such a good job with this. This SELECT can include a WHERE clause or anything else for that matter that can be put into a SELECT statement. This is a pretty common thing to do, By having a view that already does this we save having to write that function in every query where this is a requirement.Sometimes coming up with a short descriptive name for your view is easier said than done. You can also see that we have take the birth date column and calculated age.Here are a few potential problems you may encounter when you update views: column.You can’t update something that doesn’t exist in the base table.Changes applied to the data in a relevant underlying table are reflected in the data shown in subsequent invocations of the view.In some No SQL databases, views are the only way to query data.After I add the error check, the auto-generated COMMIT line magically disappeared and it works perfect ever since.

–Create base table Products Apparently, if I’m trying to insert or delete data into the view now, I’ll get an error message: Msg 4405, Level 16, State 1, Line 1 View or function ‘foods View’ is not updatable because the modification affects multiple base tables.Sometime it’s really beneficial if the view we created can be updatable.However, there’re so many restriction on view in order to make it updatable ( Even if we created the view strictly follow the rule, it might still give us hassle if we trying to update the view through programing language like c#.IF ( OBJECT_ID('dbo.vw_students1') IS NOT NULL ) DROP VIEW dbo.vw_students1 GO CREATE VIEW dbo.vw_students1 AS SELECT lastname , firstname , (firstname ' ' lastname) as "Fullname_fl", (lastname ', ' firstname) as "Fullname_lf", birth_dttm, DATEDIFF(yy, birth_dttm, GETDATE()) - CASE WHEN MONTH(birth_dttm) .The name should be somewhat reflective of the purpose of the view. As you can see in our view we are formatting the first and last name.

Leave a Reply