SQL Database Table
The foundation of every Relational Database Management System is a database
object called table. Every database consists of one or more tables, which store
the database’s data/information. Each table has its own unique name and
consists of columns and rows.
The database table columns (called also table
fields) have their own unique names and have a pre-defined data types. Table
columns can have various attributes defining the column functionality (the
column is a primary key, there is an index defined on the column, the column
has certain default value, etc.).
While table columns describe the data types,
the table rows contain the actual data for the columns.
Here is an example of a simple database table, containing customers data. The
first row, listed in bold, contains the names of the table columns:
Now that we’ve learned what is a database table, we can continue with our sql tutorial and learn how to manipulate the data within the database tables.