📄️ Schemas
A database contains one or more named schemas, which in turn contain tables.
📄️ Tables
A table in a database is much like a table on paper. It consists of rows and columns.
📄️ Columns
Tables has a fixed number of columns and each column has a data type.
📄️ Indexes
Indexes are essential for good database performance.
📄️ Constraints
Constraints give you as much control over the data in your tables as you wish.