Category: Sybase

10 Simple Ideas to Prevent Information Loss

No matter which hard disk brand you have, it is simply a matter of your time before you’ll need data

There are three levels of data modeling. They are conceptual, logical, and physical. This section will explain the difference between

Tables are the basic structure where data is stored in the database. Given that in most cases, there is no

Views can be considered as virtual tables. Generally speaking, a table has a set of definition that sets the structure

Indexes help us retrieve data from tables quicker. Let’s use an example to illustrate this point: Say we are interested

Once a table is created in the database, there are many occasions where one may wish to change the structure

A primary key is used to uniquely identify each row on a table. It can either be part of the

A foreign key is a field (or fields) that points to the primary key of another table. The purpose of

Sometimes we may decide that we need to get rid of a table in the database for some reason. In

Sometimes we wish to get rid of all the data in a table. One way of doing this is with DROP