In presenting LINQ and DLINQ in 2005.

In the history the term “object-oriented database system”
was first introduced in 1985 in 2 and 3. In 1990 the Orion Research Project
at MCC controlled by Won Kim was the first major project originated for the
development of OODBMS and some papers were published during its course so best
of which were assembled by Won Kim in the form of book 4. While Servo-Logic
5 initiated work on one of the first commercial projects which was in future
renamed as Gem Stone 6 in 1995 it was based on Small Talk object-oriented
language. Additional Lisp-based system, in 1992 Graphael, was presented at
around the same time in France and it was tracked by O2 7.  First object oriented database system (OODBS)
was introduced in 1989 1 and was published by Malcolm Atkinson that censured
relational model for existence insufficient in meeting the hassles of new
applications and placed down the standard for the object oriented database
system. After some years, 2nd strategy 10 was published that went
the differing way by associate relational model and wanting to support SQL for
OODBS object oriented database system. 
After that the 3rd and final manifesto was published in 1995
11 that is offered OO object oriented model that are the extension of
relational model and projected to increase the relational model to include the
object oriented characteristics by agreeing for defined data types for custom
user. db4o 16 was published as the Ist free open-source object oriented
database management (OODBMS) and it was the initially DBMS to implement native
queries in the programming language itself like C# and Java. Likewise Perst and
DTS/S1 were prepared accessible under dual open-source and commercial licenses.
Microsoft executed Native Queries in its .NET framework by presenting LINQ and
DLINQ in 2005. Therefore in its result many object-oriented languages currently
support for native queries.

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