Evaluating object-oriented query languages
نویسندگان
چکیده
منابع مشابه
Algebras for Object-oriented Query Languages
ion is a common feature in many object-oriented models, and AQUA is no exception. Every type is essentially an abstract data type -however, the base types and all types built using the usual type constructors have a fixed set of standard operations available on them (e.g. join and union for sets). As mentioned in [Care88b] and [Rowe87], it is often desirable to be able to add other methods to s...
متن کاملProcedures in Object-Oriented Query Languages
We follow the stack-baaed approach to query languages which is a new formal and intellectual paradigm for integrating querying and programming for object-oriented databases. Queries are considered generalized programing expressions which may be used within macroscopic imperative statements, such as creating, updating, inserting, and deleting data objects. Queries may be also used as procedures’...
متن کاملThe Convergence of Query and Object-Oriented Languages
The area of custom database applications is a large and rapidly growing domain, as evidenced by the appearance of tools for developing web front-ends to databases (e.g. Microsoft Visual InterDev), the large number of commercial programming environments now providing \database wizards" (e.g. Symantec Visual Caf e, Microsoft Visual C++) and the emergence of database interconnectivity standards (e...
متن کاملConcurrent Object-Oriented Languages
For uniprocessor systems, the object-oriented approach to programming has proven to be effective in obtaining highly maintainable and reusable software. Object-oriented programming languages, with its inherent conceptual elegance, has also allowed a high degree of programmability in the development of complex systems. As we move towards addressing issues for parallel environments, programmabili...
متن کاملOptimization of Object Query Languages
Transformation of nested SQL queries into join queries is advantageous because a nestedSQL query can be looked upon as a nested-loop join, which is just one of the several joinimplementations that may be available in a relational DBMS. In join queries, dangling(unmatched) operand tuples are lost, which causes a problem in transforming nestedqueries having the aggregate funct...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Computer Journal
سال: 1994
ISSN: 0010-4620,1460-2067
DOI: 10.1093/comjnl/37.10.858