A table entry typically includes the following fields:
1. Primary key: A unique identifier for each row of data in the table.
1. Data fields: Columns that contain the actual data values to be stored.
1. Metadata or system fields: Columns that provide additional information, such as creation date, modification date or user who created the record.
1. Foreign keys: Columns that establish relationships between tables by referencing the primary key in another table.
1. Indexes: Fields that contain precomputed values used to speed up queries on frequently searched columns.
1. Constraints: Fields that enforce rules in the table, such as making a field required or limiting the length of a field.
1. Other fields may include calculations or other types of derived data.
