Managing Database Objects in SQL
In this hour, you learn about database objects: what they are, how they act, how they are stored, and how they relate to one another. Database objects are the underlying backbone of the relational database. These objects are logical units within the database that are used to store information and are referred to as the back-end database. The majority of the instruction during this hour revolves around the table, but keep in mind that there are other database objects, many of which are discussed in later hours of study.
The highlights of this hour include:
- An introduction to database objects
- An introduction to the schema
- An introduction to the table
- A discussion of the nature and attributes of tables
- Examples for the creation and manipulation of tables
- A discussion of table storage options
- Concepts on referential integrity and data consistency
What Are Database Objects?
A database object is any defined object in a database that is used to store or reference data. Some examples of database objects include tables, views, clusters, sequences, indexes, and synonyms. The table is this hour's focus because it is the primary and simplest form of data storage in a relational database.