Table Name in SQL: A table name in SQL is unique and it is a good practice to use table names which are relevant to the table.
Qualified table name: A qualified table name is used to describe the owner of a table and the name of the table.
For Example: A user can access the table PHONE, for which Max is the owner by:
Qualified table names can also be used with a schema. A schema is a collection of tables.
Column Name in SQL: A column name is used to describe a particular column in SQL.
Qualified column name: A qualified column name is used to describe the table name where the column is, and the column name.
For Example: For a table name PHONE and column name AREA_CODE, can be described by:
A user can access the table PHONE, column AREA_CODE for which Max is the owner by: