SQL VIEW Vs TEMPORARY TABLE Statement
The distinction between VIEW and TEMPORARY Table will be discussed in this article.
Temporary tables and views are not the same as permanent tables and views. Let's have a look at it.
SQL VIEW Statement
The logical window selects a view from among the database tables in the database component.
It differs from a table in that it is a virtual table.
Only the database view definition is saved, with the data included in the view remaining in the original data base table.
As a result, if the data base table is altered, the query data view changes as well.
A view is a virtual table that is created by executing SQL queries. View to choose from the names in the data dictionary.
The database management system performs the query in the view definition that includes the view name whenever a SQL query contains a view name in order to create the virtual result table.
The source table for the rest of the query can be the result table.
Because the view is a virtual table, the data is actually saved in the base database, views may be built on one or more tables. However, because the view is a virtual table, the
SQL TEMPORARY TABLE Statement
Temporary tables, like permanent tables, are saved in tempdb and are immediately destroyed when they are no longer in use.
Temporary tables are divided into two categories: local and global.
They are distinguished by their names, visibility, and availability.
The name of a local temporary table begins with a
After you create any user, the name of the global temporary tables to double number sign (##) starts, and all references are destroyed when the user disconnects the table from SQL Server.
Table temporary tables are created in the system temporary folder and, if utilised correctly, can perform a variety of actions similar to regular tables. They are automatically released when VFP is exited.
A temporary table is one of the group's tables that isn't saved in the database. The temporary table, on the other hand, exists only if the temporary table was created by a database session.
When the display tables are not visible, temporary tables are stored in a database session, not in the database, but you can query the database when it is closed (quit, exit), and they will not exist when you open the query in the database.
Example:
- Temporary tables are commonly used to summarise firm earnings on a daily, weekly, monthly, and annual basis. In this case, we can use temp tables in a stored procedure to alter data from numerous tables in one SQL query.
- Another example is custom paging for web application grid, in which we can use a single query and temp tables to provide data in a series of groups.
SQL Difference Between VIEW AND TEMPORARY TABLE Statement
There are 7 main distinguish in view & temporary table clause:-
| VIEW TABLE | TEMPORARY TABLE |
|---|---|
| A view that only appears in a single query; each time you use the name, the virtual table is recreated using existing data. | Temporary tables exist throughout the database session in which they were created. |
| Reduce redundancy in query writing by reusing some SQL query logic. | Use a temp table if the structure or SQL query logic will not be reused frequently. |
| Its view automatically searches for definition data to fill in the blanks. | To add data to a temporary table, you must use the SQL INSERT command. |
| For data change, only those who meet the standard view updatable view capabilities are available. When a view is modified, the change is reflected in the underlying base tables indefinitely. | Temporary tables are base tables, and all temporary tables can be updated. These changes, however, are only temporary for these tables. |
| A content view is one that is only utilised to generate data each time, hence the data view is virtually always up to date. | When the table is loaded into the database state, the temporary table data is distributed among the response database. |
| Improve performance for complex calculations and joins by making outcomes simple and hiding sophisticated logic. | If the data source table is modified after the temporary table to retrieve the loaded data, then the contents of the temporary table with data that is likely to other sections of the database from which synchronisation status. |
| Views are simply stored queries for data that already exists in tables. | If there is logic that requires data processing that cannot be accomplished in a single query, the output of one query / intermediate results can be saved in a temporary table. |