SQL Server Interview Question and answers - Are SQL Server views updatable?
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You can only update columns of view if they come from the same base table.If your view is using multiple base tables,you cannot update multiple columns from multiple base tables.
For instance if you have a view which uses "Customer" and "Address" base table,you can either update "Customer" base tables columns or "Address" base table columns at time. But not both of them in one go.
In case you trying to update multiple base tables you will get an error as shown in the above figure.
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