Difference Between Schema and Table (Google BigQuery/ MySQL/ Oracle)

Schema vs Table

A (database) schema is the formal description of the organization and the structure of data in the database. 

This description includes the definitions of tables, columns, data types, indexes and much more. 

In a database, a table is a data set in which the data is organized in to set of vertical columns and horizontal rows. 

What is the difference between Schema and Table?

A database schema describes the structure and organization of data in a database system, while a table is a data set in which the data is organized into a set of vertical columns and horizontal rows. 

The database schema defines the tables in a database, the columns, and their types. 

In addition, the schema also defines what columns are defined as the primary key of a table. Understandably, the schema of a database keeps constant once created, while the actual data in the database tables may change all the time.