Title :
A team-oriented query language
Author :
Horng, Jorng-Tzong ; Chen, Gwo-Dong ; Kao, Cheng-Yan ; Liu, Baw-Jhiune
Author_Institution :
Inst. of Comput. Sci. & Inf. Eng., Nat. Central Univ., Chung-Li, Taiwan
Abstract :
In this paper, we introduce the concept “team” and incorporate the team query into data language SQL. Existing relational query languages use tuple variables of tables to specify the required data. These queries get all the data which meets the specified constraints. While a team variable represents a subset of a table, a team query is to retrieve all the teams that meet certain constraints. We discuss team qualifications. The search space of a team query may be large. Therefore, instead of using conventional breadth-first search method, we adopt a depth-first search method for query processing. Thus, users can always get results, if one exists. We present and discuss team queries in relational database systems
Keywords :
SQL; query languages; query processing; relational databases; tree searching; SQL; depth-first search; query processing; relational database systems; relational query languages; team qualifications; team-oriented query language; tuple variables; Computer science; Data engineering; Data models; Database languages; Decision support systems; Programming profession; Qualifications; Query processing; Relational databases; Search methods;
Conference_Titel :
Systems, Man, and Cybernetics, 1994. Humans, Information and Technology., 1994 IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-2129-4
DOI :
10.1109/ICSMC.1994.400059
