| M. Liu. Extending Datalog with Declarative Updates. Submitted for Publication, 1998. |
....deductive database systems, the Relationlog system is able to support the storage, efficient access and inference of data with complex structures. It provides declarative query language that is based on Relationlog [9, 13] and also a declarative data manipulation language that is based on DatalogU [11]. In this paper, we introduce the Relationlog system. In Section 2, 3, and 4, we introduce the Relationlog data definition language, query language, and data manipulation language respectively. In Section 5, We discuss Relationlog programs. In Section 6, we describe the Relationlog system ....
.... Volume Number Papers f Paper g [Author Title FirstPage LastPage] JLP 1 1 f[Tom Logic 1 10] Bob Horn Clause 11 20] TODS 1 1 f[Tom Relation 1 10] Pam Calculus 11 20] Jim Algebra 21 30]g Persons Name BirthDate Parents LivesIn Earnings [Year Month Day] fstringg [ City Country] jintegerj Tom [1913 11 20 ] fg [ Toronto Canada ] j5000j Sam [1983 5 30 ] fJimg [ Calgary Canada ] j1500j Bob [1933 4 1 ] fg [Los Angeles USA ] j200; 2500j Pam [1956 7 8 ] fBobg [ Chicago USA ] j900; 900j Joe [1962 1 24 ] fBobg [ New York USA ] j3000j Figure 3: Sample Relations Consider the following example: alter ....
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M. Liu. Extending Datalog with Declarative Updates. Submitted for Publication, 1998.
....with complex structures. In addition, it also provides powerful mechanisms for efficient access of deeply nested data. The Relationlog system provides a declarative query language that is based on Relationlog [20, 24] and also a declarative data manipulation language that is based on DatalogU [22]. The main novel features of this system are as follows: 1) domain types, schemas, facts, and rules are persistent (2) facts and rules needed for query evaluation are dynamically selected and results are temporarily stored for later queries (3) intensional data can be materialized as opposed to ....
M. Liu. Extending Datalog with Declarative Updates. Submitted for Publication, 1998.
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