Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Using Grid Files for a Relational Database Management System   This paper describes our experience with using Grid files as the main storage
organization for a relational database management system. We primarily focus on
the following two aspects. (i) Strategies for implementing grid files
efficiently. (ii) Methods for efficiency evaluating queries posed to a database
organized using grid files.

3
The categories of this paper are: physics
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th