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What Is a View?

A view is a result set from a stored query. In the database, a view is stored in the database dictionary. When a user uses a SQL query, a database view provides the results of that query. If the user performs another query, the result set is returned by a SQL query. A database view is the result of that stored query. However, this is not necessarily the case. A view is not a table.

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What Is a View?

A view is a result set from a stored query. In the database, a view is stored in the database dictionary. When a user uses a SQL query, a database view provides the results of that query. If the user performs another query, the result set is returned by a SQL query. A database view is the result of that stored query. However, this is not necessarily the case. A view is not a table.

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A view is a subset of a table. The view parameter refers to a table. The table must be accessible in the associated connection. The sql_table_name parameter specifies a non-default schema name. A view can be used alone, but it almost always has dimensions and measures nested underneath. The dimensions provide access to the columns of the database table, and the measures enable aggregation of those columns. You can learn more about the types of dimensions and measures in the documentation page. You can also create groupings of columns and define filter or date-based dimension fields.

When using a view, it is best to specify the object type attributes. This way, the views can identify unique rows. This can prevent a view from displaying data from multiple tables. Using the WITH OBJECT IDENTIFIER clause will result in a database error when the primary key resolves to more than one row. Moreover, you cannot use the WITH OBJECT IDENTIFIERS clause for subviews, as these will inherit the object identifiers from the superview.

A database can be protected using views. Using these views to protect data is essential for security purposes. For example, the password of a user is encrypted. Besides, the view itself is protected with a strong encryption. A password is also required to protect the information in the view. If the user has privileged privileges, then the database administrator can restrict access to the database by restricting the access to specific users. If the base table is not accessible, the SQL command will fail.

The AS OF expression must be the only column in a table. The AS OF clause should not contain spaces or columns in a view. The value of the AS OF expression is the location id and city. A subquery is not a table. In a table, the user can use two columns: the row-id. A multicolumn, or a single-column query.

A view can also be defined as a virtual table. A subview can be defined as a subview of an existing table. If a subview is created, the primary one inherits its identifier. Therefore, it is impossible to create a new record with the same alias. The database is not allowed to have duplicate views. It does not allow multiple objects in a table. You cannot create a new table with the same aliases.

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