Benefits of Using Aliases

Prerequisites

To use SQL aliases you should have basic knowledge of –...

Column Aliases

Column aliases are temporary names that are given to the columns for specific queries this makes output data more readable and easy to understand especially when dealing with complex queries like join queries and also refers to columns more easily in GROUP BY, ORDER BY, and WHERE clauses. Column aliases are defined in the SELECT statement. Let’s see the example...

Table Aliases

Table aliases are temporary name that are given to the table especialy when working with multiple tables in a query.Table aliase are defined in FROM clause of query after original table name using AS keyword.let see the example of table aliases:...

Benefits of Using Aliases

Readability : Aliase improve the readablilty of SQL queries like Joining of tables. Avoiding Ambiguity : When you dealing with multiple tables in which columns having same name then aliases helps you to avoid ambiguity of query. Simplifying Query: Aliase can simplify the SQL query so it can easy to manage the query....

Conclusion

In SQL Server, Column and Table Aliases are very important tool that allows the user to rename the column or table name temporarly which is very beneficial when there is complex SQL queries to handel like joining multiple tables or clauses of GROUP BY , ORDER BY. It also helps to understand data to non-techniqle person....