Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-11-19
Astronomy and Astrophysics
Astrophysics
5 pages, 2 figure, ADASS XIV Pasadena (2004)
Scientific paper
Currently two query languages are defined as standards for the Virtual Observatory (VO). Astronomical Data Query Language (ADQL) is used for catalog data query and Simple Image Access Protocol (SIAP) is for image data query. As a result, when we query each data service, we need to know in advance which language is supported and then construct a query language accordingly. The construct of SIAP is simple, but they have a limited capability. For example, there is no way to specify multiple regions in one query, and it is difficult to specify complex query conditions. In this paper, we propose a unified query language for any kind of astronomical database on the basis of SQL99. SQL is a query language optimized for a table data, so to apply the SQL to the image and spectrum data set, the data structure need to be mapped to a table like structure. We present specification of this query language and an example of the architecture for the database system.
Honda Satoshi
Masunaga Yoshifumi
Mizumoto Yoshihiko
Oe Masafumi
Ohishi Masatoshi
No associations
LandOfFree
Structured Query Language for Virtual Observatory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Structured Query Language for Virtual Observatory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structured Query Language for Virtual Observatory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-85032