Defining a new structural element (table or column) by aliasing an existing value.
A common use for this is to create a shorthand reference to elements with long names to make the SQL statements shorter.
SELECT <columns> FROM <existing_table_name> AS <new_table_name>
SELECT t1.first_name FROM employee AS t1;
2.11.AS | ||||
2.11.1. | As | |||
2.11.2. | Use As in table joins | |||
2.11.3. | Practical Uses of As | |||
2.11.4. | Aliasing Function output | |||
2.11.5. | Use AS to give a more meaningful name |