In a relational database, all data is held in tables, which are made up of rows and columns.
Each table has one or more columns, and each column is assigned a specific data type, such as an integer, a sequence of characters (for text), or a date. Each row in the table has a single value for each column.
For example, a table containing employee information can look like the following:
EmployeeID | Surname | GivenName | Phone |
---|---|---|---|
102 | Huong | Zhang | 1096 |
10693 | Donaldson | Anne | 7821 |
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