Updating views sql server
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He can see the minimum, maximum and average salary in each department, but not who is making which salary.
The Data Control Language (DCL) is the third sub-language in SQL after DDL and DML.
Views can be created from a single table, multiple tables or another view.
To create a view, a user must have the appropriate system privilege according to the specific implementation.
This is where the DBA can all kinds of schema object privileges.
We spend almost no time on it in training classes, and failure to do it right can destroy your enterprise.
Views, which are a type of virtual tables allow users to do the following − Database views are created using the CREATE VIEW statement.
This may sound simple enough, but some developers have difficulties with the concept.
Because of this, they tend to leave out is a table, so it is named just like any other table.
If they do not satisfy the condition(s), the UPDATE or INSERT returns an error.
The following code block has an example of creating same view CUSTOMERS_VIEW with the WITH CHECK OPTION.