27 January, 2008
DB As DB Abstract Layer
By Yousef Nabulsi
Why database abstraction layer ?
A database abstraction layer is a database-independent interface, it is
a layer of abstraction over the actual database access methods and
allows developers to deal with different databases without changing
their code on a per-database basis.
By placing a layer of abstraction between the database and the
developer, the database abstraction layer insulates the programmer
from database implementation details. If you initially write a script
to talk directly to Oracle for example and later need to have it work
with another database server, you will have to rewrite all the
database-specific parts but If you use a database-independent API, then
all you need is just to change some littel settings, Pear provide us DB
data object that give us good features to accomplish this technque.
Now to the Examples
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