Difference between Data and Information

Data is the collection of raw facts collected from any specific environment for a specific purpose. Data in itself does not show anything about its environment, so to get desired types of results from the data we transform it into information by applying certain processing on it. Once we have processed data using different methods data is converted into meaningful form and that form of the Data is called information  If we consider the data in the above figure without the titles or the labels associated with the data (EmpName, age, salary) then it is not much useful. However, after attaching these labels it brings some meanings to us, this meaningfulness is further increased when we associate some other labels, like the company name and the department name etc. So this is a very simple example of processing that we can do on the data to make it information.
Once we have clear idea of what data and information is we proceed with another term knows as “schema” Schema is a repository or structure to express the format and other different information about data and database, as we can see from the database definition
“Database is a self describing collection of interrelated records.” The word self describing means that the data storage and retrieval mechanism and its format is described in the database, Actual place where these definitions and descriptions are performed is database schema.